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Noise levels calculation due to future fixed noise
sources for NSR 15c (21/F) -
Unmitigated |
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Step 1: Inventory of Noise sources |
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Reference No. |
Equipment |
No. of units |
SWL,dB(A) |
Reverberant Effect |
Corrected SWL,dB(A) |
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F1 |
Seawater Cooling Chiller |
2 |
106 |
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106 |
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F2 |
Extraction Fan |
6 |
78 |
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78 |
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F3 |
RCP Mechanical Ventilation (At the roof floor of
RCP) |
2 |
101 |
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101 |
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F4 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
10 |
101 |
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101 |
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F6 |
Material Hoist |
5 |
87 |
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87 |
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F7 |
Icing Machine |
2 |
96 |
P |
102 |
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F8 |
Lorries parking |
40 |
84 |
P |
90 |
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F10 |
Sampans Idling |
2 |
102 |
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102 |
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F11 |
Fish vessels Idling |
9 |
102 |
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102 |
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F12 |
Unloading of fish containers from sea vessels |
4 |
93 |
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93 |
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F13 |
Auction and Marshalling |
4 |
94 |
P |
100 |
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F14 |
Weighting Operation |
4 |
99 |
P |
105 |
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F15 |
Loading of fish containers to lorries |
4 |
84 |
P |
90 |
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Notes: |
1. For those noise sources located within the Wholesale Fish Market
Hall which is an enclosed space with an opening to the sea-side, a correction
factor of +6 dB(A) is incorporated to account for the reverberant effect
inside the WFM as a conservative assumption. For the sound pressure level
inside a room due to fixed plant operation can be expressed as
SPL=SWL+10log(Q/4pr^2+4/R) dB, where the
term 10log4/R represents the reverberant sound field in a room. In a
worst-scenario point of view, the term R would become unity and 10log4 equals
6. Therefore, without knowing the interior finishes of the room, we have
assumed a +6 dB(A) correction for reverberant effect. |
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Step 2: Calculation of the distance correction |
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Kh = (20 log R) + 8 |
(Equation 2, reference from BS5228 equation D.3) |
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where: |
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Kh |
Distance adjustment, dB(A) |
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R |
Slant distance between the sound source and the
receiver, m |
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Reference No. |
Source |
SWL |
R |
Kh |
Leq (30 min), dB(A) |
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F1-1 |
Seawater Cooling Chiller |
106 |
124 |
49.9 |
56.1 |
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F1-2 |
Seawater Cooling Chiller |
106 |
121 |
49.7 |
56.3 |
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F2-1 |
Extraction Fan |
78 |
153 |
51.7 |
26.3 |
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F2-2 |
Extraction Fan |
78 |
157 |
51.9 |
26.1 |
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F2-3 |
Extraction Fan |
78 |
179 |
53.1 |
24.9 |
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F2-4 |
Extraction Fan |
78 |
173 |
52.8 |
25.2 |
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F2-5 |
Extraction Fan |
78 |
167 |
52.5 |
25.5 |
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F2-6 |
Extraction Fan |
78 |
162 |
52.2 |
25.8 |
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F3-1 |
RCP Mechanical Ventilation (At the roof floor of
RCP) |
101 |
128 |
50.1 |
50.7 |
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F3-2 |
RCP Mechanical Ventilation (At the roof floor of
RCP) |
101 |
152 |
51.6 |
49.2 |
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F4-1 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
101 |
204 |
54.2 |
46.6 |
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F4-2 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
101 |
201 |
54.0 |
46.8 |
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F4-3 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
101 |
194 |
53.7 |
47.1 |
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F4-4 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
101 |
191 |
53.6 |
47.2 |
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F4-5 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
101 |
189 |
53.5 |
47.3 |
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F4-6 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
101 |
182 |
53.2 |
47.6 |
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F4-7 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
101 |
179 |
53.1 |
47.7 |
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F4-8 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
101 |
176 |
52.9 |
47.9 |
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F4-9 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
101 |
171 |
52.7 |
48.1 |
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F4-10 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
101 |
170 |
52.6 |
48.2 |
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F6-1 |
Material Hoist |
87 |
210 |
54.4 |
32.5 |
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F6-2 |
Material Hoist |
87 |
199 |
54.0 |
32.9 |
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F6-3 |
Material Hoist |
87 |
187 |
53.4 |
33.5 |
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F6-4 |
Material Hoist |
87 |
175 |
52.9 |
34.0 |
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F6-5 |
Material Hoist |
87 |
169 |
52.5 |
34.4 |
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F7-1 |
Icing Machine |
102 |
152 |
51.7 |
50.3 |
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F7-2 |
Icing Machine |
102 |
148 |
51.4 |
50.6 |
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F8-1 |
Lorries parking |
90 |
177 |
52.9 |
37.1 |
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F8-2 |
Lorries parking |
90 |
174 |
52.8 |
37.2 |
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F8-3 |
Lorries parking |
90 |
170 |
52.6 |
37.4 |
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F8-4 |
Lorries parking |
90 |
168 |
52.5 |
37.5 |
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F8-5 |
Lorries parking |
90 |
164 |
52.3 |
37.7 |
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F8-6 |
Lorries parking |
90 |
161 |
52.2 |
37.8 |
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F8-7 |
Lorries parking |
90 |
159 |
52.0 |
38.0 |
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F8-8 |
Lorries parking |
90 |
159 |
52.0 |
38.0 |
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F8-9 |
Lorries parking |
90 |
156 |
51.9 |
38.1 |
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F8-10 |
Lorries parking |
90 |
154 |
51.7 |
38.3 |
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F8-11 |
Lorries parking |
90 |
151 |
51.6 |
38.4 |
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F8-12 |
Lorries parking |
90 |
148 |
51.4 |
38.6 |
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F8-13 |
Lorries parking |
90 |
145 |
51.2 |
38.8 |
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F8-14 |
Lorries parking |
90 |
144 |
51.1 |
38.9 |
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F8-15 |
Lorries parking |
90 |
141 |
51.0 |
39.0 |
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F8-16 |
Lorries parking |
90 |
139 |
50.9 |
39.1 |
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F8-17 |
Lorries parking |
90 |
138 |
50.8 |
39.2 |
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F8-18 |
Lorries parking |
90 |
137 |
50.7 |
39.3 |
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F8-19 |
Lorries parking |
90 |
135 |
50.6 |
39.4 |
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F8-20 |
Lorries parking |
90 |
133 |
50.5 |
39.5 |
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F8-21 |
Lorries parking |
90 |
182 |
53.2 |
36.8 |
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F8-22 |
Lorries parking |
90 |
181 |
53.2 |
36.8 |
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F8-23 |
Lorries parking |
90 |
178 |
53.0 |
37.0 |
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F8-24 |
Lorries parking |
90 |
175 |
52.9 |
37.1 |
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F8-25 |
Lorries parking |
90 |
173 |
52.8 |
37.2 |
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F8-26 |
Lorries parking |
90 |
171 |
52.7 |
37.3 |
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F8-27 |
Lorries parking |
90 |
166 |
52.4 |
37.6 |
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F8-28 |
Lorries parking |
90 |
164 |
52.3 |
37.7 |
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F8-29 |
Lorries parking |
90 |
165 |
52.3 |
37.7 |
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F8-30 |
Lorries parking |
90 |
161 |
52.1 |
37.9 |
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F8-31 |
Lorries parking |
90 |
158 |
52.0 |
38.0 |
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F8-32 |
Lorries parking |
90 |
155 |
51.8 |
38.2 |
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F8-33 |
Lorries parking |
90 |
153 |
51.7 |
38.3 |
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F8-34 |
Lorries parking |
90 |
150 |
51.5 |
38.5 |
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F8-35 |
Lorries parking |
90 |
147 |
51.4 |
38.6 |
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F8-36 |
Lorries parking |
90 |
144 |
51.2 |
38.8 |
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F8-37 |
Lorries parking |
90 |
142 |
51.0 |
39.0 |
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F8-38 |
Lorries parking |
90 |
141 |
51.0 |
39.0 |
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F8-39 |
Lorries parking |
90 |
141 |
51.0 |
39.0 |
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F8-40 |
Lorries parking |
90 |
139 |
50.9 |
39.1 |
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F10-1 |
Sampans Idling |
102 |
195 |
53.8 |
48.0 |
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F10-2 |
Sampans Idling |
102 |
192 |
53.7 |
48.1 |
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F11-1 |
Fish vessels Idling |
102 |
208 |
54.3 |
47.5 |
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F11-2 |
Fish vessels Idling |
102 |
204 |
54.2 |
47.6 |
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F11-3 |
Fish vessels Idling |
102 |
199 |
54.0 |
47.8 |
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F11-4 |
Fish vessels Idling |
102 |
189 |
53.5 |
48.3 |
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F11-5 |
Fish vessels Idling |
102 |
186 |
53.4 |
48.4 |
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F11-6 |
Fish vessels Idling |
102 |
214 |
54.6 |
47.2 |
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F11-7 |
Fish vessels Idling |
102 |
209 |
54.4 |
47.4 |
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F11-8 |
Fish vessels Idling |
102 |
201 |
54.1 |
47.7 |
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F11-9 |
Fish vessels Idling |
102 |
184 |
53.3 |
48.5 |
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F12-1 |
Unloading of fish containers from sea vessels |
93 |
207 |
54.3 |
38.7 |
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F12-2 |
Unloading of fish containers from sea vessels |
93 |
194 |
53.8 |
39.2 |
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F12-3 |
Unloading of fish containers from sea vessels |
93 |
182 |
53.2 |
39.8 |
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F12-4 |
Unloading of fish containers from sea vessels |
93 |
170 |
52.6 |
40.4 |
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F13-1 |
Auction and Marshalling |
100 |
183 |
53.3 |
46.7 |
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F13-2 |
Auction and Marshalling |
100 |
172 |
52.7 |
47.3 |
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F13-3 |
Auction and Marshalling |
100 |
162 |
52.2 |
47.8 |
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F13-4 |
Auction and Marshalling |
100 |
153 |
51.7 |
48.3 |
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F14-1 |
Weighting Operation |
105 |
190 |
53.6 |
51.4 |
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F14-2 |
Weighting Operation |
105 |
180 |
53.1 |
51.9 |
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F14-3 |
Weighting Operation |
105 |
170 |
52.6 |
52.4 |
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F14-4 |
Weighting Operation |
105 |
161 |
52.1 |
52.9 |
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F15-1 |
Loading of fish containers to lorries |
90 |
182 |
53.2 |
36.8 |
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F15-2 |
Loading of fish containers to lorries |
90 |
174 |
52.8 |
37.2 |
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F15-3 |
Loading of fish containers to lorries |
90 |
166 |
52.4 |
37.6 |
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F15-4 |
Loading of fish containers to lorries |
90 |
158 |
52.0 |
38.0 |
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Step 3: Make allowances for reflections and
screening |
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The barrier screening effect was obtained from
BS5228 barrier attenuation |
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Reference No. |
Source |
Leq (30 min) |
Façade Effect |
Barrier Effect |
Corrected Leq (30 min), dB(A) |
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F1-1 |
Seawater Cooling Chiller |
56.1 |
3 |
0 |
59 |
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F1-2 |
Seawater Cooling Chiller |
56.3 |
3 |
0 |
59 |
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F2-1 |
Extraction Fan |
26.3 |
3 |
0 |
29 |
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F2-2 |
Extraction Fan |
26.1 |
3 |
0 |
29 |
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F2-3 |
Extraction Fan |
24.9 |
3 |
0 |
28 |
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F2-4 |
Extraction Fan |
25.2 |
3 |
0 |
28 |
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F2-5 |
Extraction Fan |
25.5 |
3 |
0 |
29 |
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F2-6 |
Extraction Fan |
25.8 |
3 |
0 |
29 |
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F3-1 |
RCP Mechanical Ventilation (At the roof floor of
RCP) |
50.7 |
3 |
0 |
54 |
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F3-2 |
RCP Mechanical Ventilation (At the roof floor of
RCP) |
49.2 |
3 |
0 |
52 |
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F4-1 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
46.6 |
3 |
-20 |
30 |
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F4-2 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
46.8 |
3 |
-19 |
31 |
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F4-3 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
47.1 |
3 |
-21 |
29 |
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F4-4 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
47.2 |
3 |
-20 |
30 |
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F4-5 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
47.3 |
3 |
-19 |
31 |
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F4-6 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
47.6 |
3 |
-21 |
30 |
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F4-7 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
47.7 |
3 |
-20 |
31 |
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F4-8 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
47.9 |
3 |
-19 |
31 |
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F4-9 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
48.1 |
3 |
-20 |
31 |
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F4-10 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
48.2 |
3 |
-23 |
29 |
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F6-1 |
Material Hoist |
32.5 |
3 |
-24 |
11 |
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F6-2 |
Material Hoist |
32.9 |
3 |
-24 |
12 |
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F6-3 |
Material Hoist |
33.5 |
3 |
-24 |
12 |
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F6-4 |
Material Hoist |
34.0 |
3 |
-24 |
13 |
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F6-5 |
Material Hoist |
34.4 |
3 |
-24 |
13 |
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F7-1 |
Icing Machine |
50.3 |
3 |
-24 |
29 |
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F7-2 |
Icing Machine |
50.6 |
3 |
-24 |
29 |
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F8-1 |
Lorries parking |
37.1 |
3 |
-24 |
16 |
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F8-2 |
Lorries parking |
37.2 |
3 |
-24 |
16 |
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F8-3 |
Lorries parking |
37.4 |
3 |
-24 |
16 |
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F8-4 |
Lorries parking |
37.5 |
3 |
-24 |
16 |
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F8-5 |
Lorries parking |
37.7 |
3 |
-24 |
16 |
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F8-6 |
Lorries parking |
37.8 |
3 |
-24 |
17 |
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F8-7 |
Lorries parking |
38.0 |
3 |
-24 |
17 |
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F8-8 |
Lorries parking |
38.0 |
3 |
-24 |
17 |
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F8-9 |
Lorries parking |
38.1 |
3 |
-24 |
17 |
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F8-10 |
Lorries parking |
38.3 |
3 |
-24 |
17 |
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F8-11 |
Lorries parking |
38.4 |
3 |
-24 |
17 |
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F8-12 |
Lorries parking |
38.6 |
3 |
-24 |
17 |
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F8-13 |
Lorries parking |
38.8 |
3 |
-24 |
17 |
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F8-14 |
Lorries parking |
38.9 |
3 |
-24 |
18 |
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F8-15 |
Lorries parking |
39.0 |
3 |
-24 |
18 |
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F8-16 |
Lorries parking |
39.1 |
3 |
-24 |
18 |
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F8-17 |
Lorries parking |
39.2 |
3 |
-24 |
18 |
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F8-18 |
Lorries parking |
39.3 |
3 |
-24 |
18 |
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F8-19 |
Lorries parking |
39.4 |
3 |
-24 |
18 |
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F8-20 |
Lorries parking |
39.5 |
3 |
-24 |
18 |
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F8-21 |
Lorries parking |
36.8 |
3 |
-24 |
16 |
|||
|
F8-22 |
Lorries parking |
36.8 |
3 |
-24 |
16 |
|||
|
F8-23 |
Lorries parking |
37.0 |
3 |
-24 |
16 |
|||
|
F8-24 |
Lorries parking |
37.1 |
3 |
-24 |
16 |
|||
|
F8-25 |
Lorries parking |
37.2 |
3 |
-24 |
16 |
|||
|
F8-26 |
Lorries parking |
37.3 |
3 |
-24 |
16 |
|||
|
F8-27 |
Lorries parking |
37.6 |
3 |
-24 |
16 |
|||
|
F8-28 |
Lorries parking |
37.7 |
3 |
-24 |
16 |
|||
|
F8-29 |
Lorries parking |
37.7 |
3 |
-24 |
16 |
|||
|
F8-30 |
Lorries parking |
37.9 |
3 |
-24 |
17 |
|||
|
F8-31 |
Lorries parking |
38.0 |
3 |
-24 |
17 |
|||
|
F8-32 |
Lorries parking |
38.2 |
3 |
-24 |
17 |
|||
|
F8-33 |
Lorries parking |
38.3 |
3 |
-24 |
17 |
|||
|
F8-34 |
Lorries parking |
38.5 |
3 |
-24 |
17 |
|||
|
F8-35 |
Lorries parking |
38.6 |
3 |
-24 |
17 |
|||
|
F8-36 |
Lorries parking |
38.8 |
3 |
-24 |
18 |
|||
|
F8-37 |
Lorries parking |
39.0 |
3 |
-24 |
18 |
|||
|
F8-38 |
Lorries parking |
39.0 |
3 |
-24 |
18 |
|||
|
F8-39 |
Lorries parking |
39.0 |
3 |
-24 |
18 |
|||
|
F8-40 |
Lorries parking |
39.1 |
3 |
-24 |
18 |
|||
|
F10-1 |
Sampans Idling |
48.0 |
3 |
-23 |
28 |
|||
|
F10-2 |
Sampans Idling |
48.1 |
3 |
-23 |
28 |
|||
|
F11-1 |
Fish vessels Idling |
47.5 |
3 |
-23 |
28 |
|||
|
F11-2 |
Fish vessels Idling |
47.6 |
3 |
-22 |
29 |
|||
|
F11-3 |
Fish vessels Idling |
47.8 |
3 |
-22 |
29 |
|||
|
F11-4 |
Fish vessels Idling |
48.3 |
3 |
-23 |
28 |
|||
|
F11-5 |
Fish vessels Idling |
48.4 |
3 |
-24 |
28 |
|||
|
F11-6 |
Fish vessels Idling |
47.2 |
3 |
-24 |
26 |
|||
|
F11-7 |
Fish vessels Idling |
47.4 |
3 |
-24 |
26 |
|||
|
F11-8 |
Fish vessels Idling |
47.7 |
3 |
-23 |
28 |
|||
|
F11-9 |
Fish vessels Idling |
48.5 |
3 |
-23 |
28 |
|||
|
F12-1 |
Unloading of fish containers from sea vessels |
38.7 |
3 |
-24 |
17 |
|||
|
F12-2 |
Unloading of fish containers from sea vessels |
39.2 |
3 |
-24 |
18 |
|||
|
F12-3 |
Unloading of fish containers from sea vessels |
39.8 |
3 |
-24 |
18 |
|||
|
F12-4 |
Unloading of fish containers from sea vessels |
40.4 |
3 |
-24 |
19 |
|||
|
F13-1 |
Auction and Marshalling |
46.7 |
3 |
-20 |
30 |
|||
|
F13-2 |
Auction and Marshalling |
47.3 |
3 |
-21 |
29 |
|||
|
F13-3 |
Auction and Marshalling |
47.8 |
3 |
-21 |
29 |
|||
|
F13-4 |
Auction and Marshalling |
48.3 |
3 |
-24 |
27 |
|||
|
F14-1 |
Weighting Operation |
51.4 |
3 |
-15 |
39 |
|||
|
F14-2 |
Weighting Operation |
51.9 |
3 |
-16 |
39 |
|||
|
F14-3 |
Weighting Operation |
52.4 |
3 |
-24 |
31 |
|||
|
F14-4 |
Weighting Operation |
52.9 |
3 |
-24 |
32 |
|||
|
F15-1 |
Loading of fish containers to lorries |
36.8 |
3 |
-23 |
17 |
|||
|
F15-2 |
Loading of fish containers to lorries |
37.2 |
3 |
-24 |
16 |
|||
|
F15-3 |
Loading of fish containers to lorries |
37.6 |
3 |
-24 |
16 |
|||
|
F15-4 |
Loading of fish containers to lorries |
38.0 |
3 |
-24 |
17 |
|||
|
|
|
|
|
|
|
|
|
|
|
Step 4: Calculation of the total noise level |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Reference No. |
Source |
Corrected Leq (30 min), dB(A) |
|
|
|
|
|
|
|
F1-1 |
Seawater Cooling Chiller |
59 |
|
|
|
|
|
|
|
F1-2 |
Seawater Cooling Chiller |
59 |
|
|
|
|
|
|
|
F2-1 |
Extraction Fan |
29 |
|
|
|
|
|
|
|
F2-2 |
Extraction Fan |
29 |
|
|
|
|
|
|
|
F2-3 |
Extraction Fan |
28 |
|
|
|
|
|
|
|
F2-4 |
Extraction Fan |
28 |
|
|
|
|
|
|
|
F2-5 |
Extraction Fan |
29 |
|
|
|
|
|
|
|
F2-6 |
Extraction Fan |
29 |
|
|
|
|
|
|
|
F3-1 |
RCP Mechanical Ventilation (At the roof floor of
RCP) |
54 |
|
|
|
|
|
|
|
F3-2 |
RCP Mechanical Ventilation (At the roof floor of
RCP) |
52 |
|
|
|
|
|
|
|
F4-1 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
30 |
|
|
|
|
|
|
|
F4-2 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
31 |
|
|
|
|
|
|
|
F4-3 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
29 |
|
|
|
|
|
|
|
F4-4 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
30 |
|
|
|
|
|
|
|
F4-5 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
31 |
|
|
|
|
|
|
|
F4-6 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
30 |
|
|
|
|
|
|
|
F4-7 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
31 |
|
|
|
|
|
|
|
F4-8 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
31 |
|
|
|
|
|
|
|
F4-9 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
31 |
|
|
|
|
|
|
|
F4-10 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
29 |
|
|
|
|
|
|
|
F6-1 |
Material Hoist |
11 |
|
|
|
|
|
|
|
F6-2 |
Material Hoist |
12 |
|
|
|
|
|
|
|
F6-3 |
Material Hoist |
12 |
|
|
|
|
|
|
|
F6-4 |
Material Hoist |
13 |
|
|
|
|
|
|
|
F6-5 |
Material Hoist |
13 |
|
|
|
|
|
|
|
F7-1 |
Icing Machine |
29 |
|
|
|
|
|
|
|
F7-2 |
Icing Machine |
29 |
|
|
|
|
|
|
|
F8-1 |
Lorries parking |
16 |
|
|
|
|
|
|
|
F8-2 |
Lorries parking |
16 |
|
|
|
|
|
|
|
F8-3 |
Lorries parking |
16 |
|
|
|
|
|
|
|
F8-4 |
Lorries parking |
16 |
|
|
|
|
|
|
|
F8-5 |
Lorries parking |
16 |
|
|
|
|
|
|
|
F8-6 |
Lorries parking |
17 |
|
|
|
|
|
|
|
F8-7 |
Lorries parking |
17 |
|
|
|
|
|
|
|
F8-8 |
Lorries parking |
17 |
|
|
|
|
|
|
|
F8-9 |
Lorries parking |
17 |
|
|
|
|
|
|
|
F8-10 |
Lorries parking |
17 |
|
|
|
|
|
|
|
F8-11 |
Lorries parking |
17 |
|
|
|
|
|
|
|
F8-12 |
Lorries parking |
17 |
|
|
|
|
|
|
|
F8-13 |
Lorries parking |
17 |
|
|
|
|
|
|
|
F8-14 |
Lorries parking |
18 |
|
|
|
|
|
|
|
F8-15 |
Lorries parking |
18 |
|
|
|
|
|
|
|
F8-16 |
Lorries parking |
18 |
|
|
|
|
|
|
|
F8-17 |
Lorries parking |
18 |
|
|
|
|
|
|
|
F8-18 |
Lorries parking |
18 |
|
|
|
|
|
|
|
F8-19 |
Lorries parking |
18 |
|
|
|
|
|
|
|
F8-20 |
Lorries parking |
18 |
|
|
|
|
|
|
|
F8-21 |
Lorries parking |
16 |
|
|
|
|
|
|
|
F8-22 |
Lorries parking |
16 |
|
|
|
|
|
|
|
F8-23 |
Lorries parking |
16 |
|
|
|
|
|
|
|
F8-24 |
Lorries parking |
16 |
|
|
|
|
|
|
|
F8-25 |
Lorries parking |
16 |
|
|
|
|
|
|
|
F8-26 |
Lorries parking |
16 |
|
|
|
|
|
|
|
F8-27 |
Lorries parking |
16 |
|
|
|
|
|
|
|
F8-28 |
Lorries parking |
16 |
|
|
|
|
|
|
|
F8-29 |
Lorries parking |
16 |
|
|
|
|
|
|
|
F8-30 |
Lorries parking |
17 |
|
|
|
|
|
|
|
F8-31 |
Lorries parking |
17 |
|
|
|
|
|
|
|
F8-32 |
Lorries parking |
17 |
|
|
|
|
|
|
|
F8-33 |
Lorries parking |
17 |
|
|
|
|
|
|
|
F8-34 |
Lorries parking |
17 |
|
|
|
|
|
|
|
F8-35 |
Lorries parking |
17 |
|
|
|
|
|
|
|
F8-36 |
Lorries parking |
18 |
|
|
|
|
|
|
|
F8-37 |
Lorries parking |
18 |
|
|
|
|
|
|
|
F8-38 |
Lorries parking |
18 |
|
|
|
|
|
|
|
F8-39 |
Lorries parking |
18 |
|
|
|
|
|
|
|
F8-40 |
Lorries parking |
18 |
|
|
|
|
|
|
|
F10-1 |
Sampans Idling |
28 |
|
|
|
|
|
|
|
F10-2 |
Sampans Idling |
28 |
|
|
|
|
|
|
|
F11-1 |
Fish vessels Idling |
28 |
|
|
|
|
|
|
|
F11-2 |
Fish vessels Idling |
29 |
|
|
|
|
|
|
|
F11-3 |
Fish vessels Idling |
29 |
|
|
|
|
|
|
|
F11-4 |
Fish vessels Idling |
28 |
|
|
|
|
|
|
|
F11-5 |
Fish vessels Idling |
28 |
|
|
|
|
|
|
|
F11-6 |
Fish vessels Idling |
26 |
|
|
|
|
|
|
|
F11-7 |
Fish vessels Idling |
26 |
|
|
|
|
|
|
|
F11-8 |
Fish vessels Idling |
28 |
|
|
|
|
|
|
|
F11-9 |
Fish vessels Idling |
28 |
|
|
|
|
|
|
|
F12-1 |
Unloading of fish containers from sea vessels |
17 |
|
|
|
|
|
|
|
F12-2 |
Unloading of fish containers from sea vessels |
18 |
|
|
|
|
|
|
|
F12-3 |
Unloading of fish containers from sea vessels |
18 |
|
|
|
|
|
|
|
F12-4 |
Unloading of fish containers from sea vessels |
19 |
|
|
|
|
|
|
|
F13-1 |
Auction and Marshalling |
30 |
|
|
|
|
|
|
|
F13-2 |
Auction and Marshalling |
29 |
|
|
|
|
|
|
|
F13-3 |
Auction and Marshalling |
29 |
|
|
|
|
|
|
|
F13-4 |
Auction and Marshalling |
27 |
|
|
|
|
|
|
|
F14-1 |
Weighting Operation |
39 |
|
|
|
|
|
|
|
F14-2 |
Weighting Operation |
39 |
|
|
|
|
|
|
|
F14-3 |
Weighting Operation |
31 |
|
|
|
|
|
|
|
F14-4 |
Weighting Operation |
32 |
|
|
|
|
|
|
|
F15-1 |
Loading of fish containers to lorries |
17 |
|
|
|
|
|
|
|
F15-2 |
Loading of fish containers to lorries |
16 |
|
|
|
|
|
|
|
F15-3 |
Loading of fish containers to lorries |
16 |
|
|
|
|
|
|
|
F15-4 |
Loading of fish containers to lorries |
17 |
|
|
|
|
|
|
|
|
Total Leq (30 min), dB(A) |
63 |
|
|
|
|
|
|
|
Noise levels calculation due to future fixed noise sources for NSR 15c (21/F) - Mitigated |
|
|
||||||
|
|
|
|
|
|
|
|
|
|
|
Step 1: Inventory of Noise sources |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Reference No. |
Equipment |
No. of units |
SWL,dB(A) |
Reverberant Effect |
With Silencer / Acoustic Louvre |
Corrected SWL,dB(A) |
|
|
|
F1 |
Seawater Cooling Chiller |
2 |
106 |
|
P |
81 |
|
|
|
F2 |
Extraction Fan |
6 |
78 |
|
|
78 |
|
|
|
F3 |
RCP Mechanical Ventilation (At the roof floor of
RCP) |
2 |
101 |
|
P |
76 |
|
|
|
F4 |
Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
10 |
101 |
|
P |
76 |
|
|
|
F6 |
Material Hoist |
5 |
87 |
|
|
87 |
|
|
|
F7 |
Icing Machine |
2 |
96 |
P |
|
102 |
|
|
|
F8 |
Lorries parking |
40 |
84 |
P |
|
90 |
|
|
|
F10 |
Sampans Idling |
2 |
102 |
|
|
102 |
|
|
|
F11 |
Fish vessels Idling |
9 |
102 |
|
|
102 |
|
|
|
F12 |
Unloading of fish containers from sea vessels |
4 |
93 |
|
|
93 |
|
|
|
F13 |
Auction and Marshalling |
4 |
94 |
P |
|
100 |
|
|
|
F14 |
Weighing Operation |
4 |
99 |
P |
|
105 |
|
|
|
F15 |
Loading of fish containers onto trucks |
4 |
84 |
P |
|
90 |
|
|
|
Notes: |
1. For those noise sources located within the Wholesale Fish Market
Hall which is an enclosed space with an opening to the sea-side, a correction
factor of +6 dB(A) is incorporated to account for the reverberant effect
inside the WFM as a conservative assumption. For the sound pressure level
inside a room due to fixed plant operation can be expressed as
SPL=SWL+10log(Q/4pr^2+4/R) dB, where the
term 10log4/R represents the reverberant sound field in a room. In a
worst-scenario point of view, the term R would become unity and 10log4 equals
6. Therefore, without knowing the interior finishes of the room, we have
assumed a +6 dB(A) correction for reverberant effect. |
|
||||||
|
|
2. Assuming equipment incorporates with silencers with a maximum of
25dB(A) attenuation |
|
||||||
|
|
|
|
|
|||||
|
|
|
|
|
|
|
|
|
|
|
Step 2: Calculation of distance correction |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Kh = (20 log R) + 8 |
(Equation 2, reference from BS5228 equation D.3) |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
where: |
|
|
|
|
|
|
|
|
|
Kh |
Distance adjustment, dB(A) |
|
|
|
|
|
|
|
|
R |
Slant distance between the sound source and the
receiver, m |
|
|
|
|
|
||
|
|
|
|
|
|
|
|
|
|
|
Reference No. |
Source |
SWL |
R |
Kh |
Leq (30 min), dB(A) |
|
|
|
|
F1-1 |
Seawater Cooling Chiller |
81 |
124 |
49.9 |
31.1 |
|
|
|
|
F1-2 |
Seawater Cooling Chiller |
81 |
121 |
49.7 |
31.3 |
|
|
|
|
F2-1 |
Extraction Fan |
78 |
153 |
51.7 |
26.3 |
|
|
|
|
F2-2 |
Extraction Fan |
78 |
157 |
51.9 |
26.1 |
|
|
|
|
F2-3 |
Extraction Fan |
78 |
179 |
53.1 |
24.9 |
|
|
|
|
F2-4 |
Extraction Fan |
78 |
173 |
52.8 |
25.2 |
|
|
|
|
F2-5 |
Extraction Fan |
78 |
167 |
52.5 |
25.5 |
|
|
|
|
F2-6 |
Extraction Fan |
78 |
162 |
52.2 |
25.8 |
|
|
|
|
F3-1 |
RCP Mechanical Ventilation (At the roof floor of
RCP) |
76 |
128 |
50.1 |
25.7 |
|
|
|
|
F3-2 |
RCP Mechanical Ventilation (At the roof floor of
RCP) |
76 |
152 |
51.6 |
24.2 |
|
|
|
|
F4-1 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
76 |
204 |
54.2 |
21.6 |
|
|
|
|
F4-2 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
76 |
201 |
54.0 |
21.8 |
|
|
|
|
F4-3 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
76 |
194 |
53.7 |
22.1 |
|
|
|
|
F4-4 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
76 |
191 |
53.6 |
22.2 |
|
|
|
|
F4-5 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
76 |
189 |
53.5 |
22.3 |
|
|
|
|
F4-6 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
76 |
182 |
53.2 |
22.6 |
|
|
|
|
F4-7 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
76 |
179 |
53.1 |
22.7 |
|
|
|
|
F4-8 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
76 |
176 |
52.9 |
22.9 |
|
|
|
|
F4-9 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
76 |
171 |
52.7 |
23.1 |
|
|
|
|
F4-10 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
76 |
170 |
52.6 |
23.2 |
|
|
|
|
F6-1 |
Material Hoist |
87 |
210 |
54.4 |
32.5 |
|
|
|
|
F6-2 |
Material Hoist |
87 |
199 |
54.0 |
32.9 |
|
|
|
|
F6-3 |
Material Hoist |
87 |
187 |
53.4 |
33.5 |
|
|
|
|
F6-4 |
Material Hoist |
87 |
175 |
52.9 |
34.0 |
|
|
|
|
F6-5 |
Material Hoist |
87 |
169 |
52.5 |
34.4 |
|
|
|
|
F7-1 |
Icing Machine |
102 |
152 |
51.7 |
50.3 |
|
|
|
|
F7-2 |
Icing Machine |
102 |
148 |
51.4 |
50.6 |
|
|
|
|
F8-1 |
Lorries parking |
90 |
177 |
52.9 |
37.1 |
|
|
|
|
F8-2 |
Lorries parking |
90 |
174 |
52.8 |
37.2 |
|
|
|
|
F8-3 |
Lorries parking |
90 |
170 |
52.6 |
37.4 |
|
|
|
|
F8-4 |
Lorries parking |
90 |
168 |
52.5 |
37.5 |
|
|
|
|
F8-5 |
Lorries parking |
90 |
164 |
52.3 |
37.7 |
|
|
|
|
F8-6 |
Lorries parking |
90 |
161 |
52.2 |
37.8 |
|
|
|
|
F8-7 |
Lorries parking |
90 |
159 |
52.0 |
38.0 |
|
|
|
|
F8-8 |
Lorries parking |
90 |
159 |
52.0 |
38.0 |
|
|
|
|
F8-9 |
Lorries parking |
90 |
156 |
51.9 |
38.1 |
|
|
|
|
F8-10 |
Lorries parking |
90 |
154 |
51.7 |
38.3 |
|
|
|
|
F8-11 |
Lorries parking |
90 |
151 |
51.6 |
38.4 |
|
|
|
|
F8-12 |
Lorries parking |
90 |
148 |
51.4 |
38.6 |
|
|
|
|
F8-13 |
Lorries parking |
90 |
145 |
51.2 |
38.8 |
|
|
|
|
F8-14 |
Lorries parking |
90 |
144 |
51.1 |
38.9 |
|
|
|
|
F8-15 |
Lorries parking |
90 |
141 |
51.0 |
39.0 |
|
|
|
|
F8-16 |
Lorries parking |
90 |
139 |
50.9 |
39.1 |
|
|
|
|
F8-17 |
Lorries parking |
90 |
138 |
50.8 |
39.2 |
|
|
|
|
F8-18 |
Lorries parking |
90 |
137 |
50.7 |
39.3 |
|
|
|
|
F8-19 |
Lorries parking |
90 |
135 |
50.6 |
39.4 |
|
|
|
|
F8-20 |
Lorries parking |
90 |
133 |
50.5 |
39.5 |
|
|
|
|
F8-21 |
Lorries parking |
90 |
182 |
53.2 |
36.8 |
|
|
|
|
F8-22 |
Lorries parking |
90 |
181 |
53.2 |
36.8 |
|
|
|
|
F8-23 |
Lorries parking |
90 |
178 |
53.0 |
37.0 |
|
|
|
|
F8-24 |
Lorries parking |
90 |
175 |
52.9 |
37.1 |
|
|
|
|
F8-25 |
Lorries parking |
90 |
173 |
52.8 |
37.2 |
|
|
|
|
F8-26 |
Lorries parking |
90 |
171 |
52.7 |
37.3 |
|
|
|
|
F8-27 |
Lorries parking |
90 |
166 |
52.4 |
37.6 |
|
|
|
|
F8-28 |
Lorries parking |
90 |
164 |
52.3 |
37.7 |
|
|
|
|
F8-29 |
Lorries parking |
90 |
165 |
52.3 |
37.7 |
|
|
|
|
F8-30 |
Lorries parking |
90 |
161 |
52.1 |
37.9 |
|
|
|
|
F8-31 |
Lorries parking |
90 |
158 |
52.0 |
38.0 |
|
|
|
|
F8-32 |
Lorries parking |
90 |
155 |
51.8 |
38.2 |
|
|
|
|
F8-33 |
Lorries parking |
90 |
153 |
51.7 |
38.3 |
|
|
|
|
F8-34 |
Lorries parking |
90 |
150 |
51.5 |
38.5 |
|
|
|
|
F8-35 |
Lorries parking |
90 |
147 |
51.4 |
38.6 |
|
|
|
|
F8-36 |
Lorries parking |
90 |
144 |
51.2 |
38.8 |
|
|
|
|
F8-37 |
Lorries parking |
90 |
142 |
51.0 |
39.0 |
|
|
|
|
F8-38 |
Lorries parking |
90 |
141 |
51.0 |
39.0 |
|
|
|
|
F8-39 |
Lorries parking |
90 |
141 |
51.0 |
39.0 |
|
|
|
|
F8-40 |
Lorries parking |
90 |
139 |
50.9 |
39.1 |
|
|
|
|
F10-1 |
Sampans Idling |
102 |
195 |
53.8 |
48.0 |
|
|
|
|
F10-2 |
Sampans Idling |
102 |
192 |
53.7 |
48.1 |
|
|
|
|
F11-1 |
Fish vessels Idling |
102 |
208 |
54.3 |
47.5 |
|
|
|
|
F11-2 |
Fish vessels Idling |
102 |
204 |
54.2 |
47.6 |
|
|
|
|
F11-3 |
Fish vessels Idling |
102 |
199 |
54.0 |
47.8 |
|
|
|
|
F11-4 |
Fish vessels Idling |
102 |
189 |
53.5 |
48.3 |
|
|
|
|
F11-5 |
Fish vessels Idling |
102 |
186 |
53.4 |
48.4 |
|
|
|
|
F11-6 |
Fish vessels Idling |
102 |
214 |
54.6 |
47.2 |
|
|
|
|
F11-7 |
Fish vessels Idling |
102 |
209 |
54.4 |
47.4 |
|
|
|
|
F11-8 |
Fish vessels Idling |
102 |
201 |
54.1 |
47.7 |
|
|
|
|
F11-9 |
Fish vessels Idling |
102 |
184 |
53.3 |
48.5 |
|
|
|
|
F12-1 |
Unloading of fish containers from sea vessels |
93 |
207 |
54.3 |
38.7 |
|
|
|
|
F12-2 |
Unloading of fish containers from sea vessels |
93 |
194 |
53.8 |
39.2 |
|
|
|
|
F12-3 |
Unloading of fish containers from sea vessels |
93 |
182 |
53.2 |
39.8 |
|
|
|
|
F12-4 |
Unloading of fish containers from sea vessels |
93 |
170 |
52.6 |
40.4 |
|
|
|
|
F13-1 |
Auction and Marshalling |
100 |
183 |
53.3 |
46.7 |
|
|
|
|
F13-2 |
Auction and Marshalling |
100 |
172 |
52.7 |
47.3 |
|
|
|
|
F13-3 |
Auction and Marshalling |
100 |
162 |
52.2 |
47.8 |
|
|
|
|
F13-4 |
Auction and Marshalling |
100 |
153 |
51.7 |
48.3 |
|
|
|
|
F14-1 |
Weighting Operation |
105 |
190 |
53.6 |
51.4 |
|
|
|
|
F14-2 |
Weighting Operation |
105 |
180 |
53.1 |
51.9 |
|
|
|
|
F14-3 |
Weighting Operation |
105 |
170 |
52.6 |
52.4 |
|
|
|
|
F14-4 |
Weighting Operation |
105 |
161 |
52.1 |
52.9 |
|
|
|
|
F15-1 |
Loading of fish containers to lorries |
90 |
182 |
53.2 |
36.8 |
|
|
|
|
F15-2 |
Loading of fish containers to lorries |
90 |
174 |
52.8 |
37.2 |
|
|
|
|
F15-3 |
Loading of fish containers to lorries |
90 |
166 |
52.4 |
37.6 |
|
|
|
|
F15-4 |
Loading of fish containers to lorries |
90 |
158 |
52.0 |
38.0 |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Step 3: Make allowances for reflections and
screening |
|
|
|
|
|
|
||
|
|
|
|
|
|
|
|
|
|
|
The barrier screening effect was obtained from
BS5228 barrier attenuation |
||||||||
|
|
|
|
|
|
|
|
|
|
|
Reference No. |
Source |
Leq (30 min) |
Façade Effect |
Barrier Effect |
Corrected Leq (30 min), dB(A) |
|||
|
F1-1 |
Seawater Cooling Chiller |
31.1 |
3 |
0 |
34.1 |
|||
|
F1-2 |
Seawater Cooling Chiller |
31.3 |
3 |
0 |
34.3 |
|||
|
F2-1 |
Extraction Fan |
26.3 |
3 |
0 |
29.3 |
|||
|
F2-2 |
Extraction Fan |
26.1 |
3 |
0 |
29.1 |
|||
|
F2-3 |
Extraction Fan |
24.9 |
3 |
0 |
27.9 |
|||
|
F2-4 |
Extraction Fan |
25.2 |
3 |
0 |
28.2 |
|||
|
F2-5 |
Extraction Fan |
25.5 |
3 |
0 |
28.5 |
|||
|
F2-6 |
Extraction Fan |
25.8 |
3 |
0 |
28.8 |
|||
|
F3-1 |
RCP Mechanical Ventilation (At the roof floor of
RCP) |
25.7 |
3 |
0 |
28.7 |
|||
|
F3-2 |
RCP Mechanical Ventilation (At the roof floor of
RCP) |
24.2 |
3 |
0 |
27.2 |
|||
|
F4-1 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
21.6 |
3 |
-20 |
4.8 |
|||
|
F4-2 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
21.8 |
3 |
-19 |
5.7 |
|||
|
F4-3 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
22.1 |
3 |
-21 |
4.2 |
|||
|
F4-4 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
22.2 |
3 |
-20 |
4.8 |
|||
|
F4-5 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
22.3 |
3 |
-19 |
6.0 |
|||
|
F4-6 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
22.6 |
3 |
-21 |
4.8 |
|||
|
F4-7 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
22.7 |
3 |
-20 |
6.0 |
|||
|
F4-8 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
22.9 |
3 |
-19 |
6.5 |
|||
|
F4-9 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
23.1 |
3 |
-20 |
6.3 |
|||
|
F4-10 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
23.2 |
3 |
-23 |
3.7 |
|||
|
F6-1 |
Material Hoist |
32.5 |
3 |
-24 |
11.2 |
|||
|
F6-2 |
Material Hoist |
32.9 |
3 |
-24 |
11.6 |
|||
|
F6-3 |
Material Hoist |
33.5 |
3 |
-24 |
12.2 |
|||
|
F6-4 |
Material Hoist |
34.0 |
3 |
-24 |
12.7 |
|||
|
F6-5 |
Material Hoist |
34.4 |
3 |
-24 |
13.1 |
|||
|
F7-1 |
Icing Machine |
50.3 |
3 |
-24 |
29.0 |
|||
|
F7-2 |
Icing Machine |
50.6 |
3 |
-24 |
29.3 |
|||
|
F8-1 |
Lorries parking |
37.1 |
3 |
-24 |
15.8 |
|||
|
F8-2 |
Lorries parking |
37.2 |
3 |
-24 |
15.9 |
|||
|
F8-3 |
Lorries parking |
37.4 |
3 |
-24 |
16.1 |
|||
|
F8-4 |
Lorries parking |
37.5 |
3 |
-24 |
16.2 |
|||
|
F8-5 |
Lorries parking |
37.7 |
3 |
-24 |
16.4 |
|||
|
F8-6 |
Lorries parking |
37.8 |
3 |
-24 |
16.5 |
|||
|
F8-7 |
Lorries parking |
38.0 |
3 |
-24 |
16.7 |
|||
|
F8-8 |
Lorries parking |
38.0 |
3 |
-24 |
16.7 |
|||
|
F8-9 |
Lorries parking |
38.1 |
3 |
-24 |
16.8 |
|||
|
F8-10 |
Lorries parking |
38.3 |
3 |
-24 |
17.0 |
|||
|
F8-11 |
Lorries parking |
38.4 |
3 |
-24 |
17.1 |
|||
|
F8-12 |
Lorries parking |
38.6 |
3 |
-24 |
17.3 |
|||
|
F8-13 |
Lorries parking |
38.8 |
3 |
-24 |
17.5 |
|||
|
F8-14 |
Lorries parking |
38.9 |
3 |
-24 |
17.6 |
|||
|
F8-15 |
Lorries parking |
39.0 |
3 |
-24 |
17.7 |
|||
|
F8-16 |
Lorries parking |
39.1 |
3 |
-24 |
17.8 |
|||
|
F8-17 |
Lorries parking |
39.2 |
3 |
-24 |
17.9 |
|||
|
F8-18 |
Lorries parking |
39.3 |
3 |
-24 |
18.0 |
|||
|
F8-19 |
Lorries parking |
39.4 |
3 |
-24 |
18.1 |
|||
|
F8-20 |
Lorries parking |
39.5 |
3 |
-24 |
18.2 |
|||
|
F8-21 |
Lorries parking |
36.8 |
3 |
-24 |
15.5 |
|||
|
F8-22 |
Lorries parking |
36.8 |
3 |
-24 |
15.5 |
|||
|
F8-23 |
Lorries parking |
37.0 |
3 |
-24 |
15.7 |
|||
|
F8-24 |
Lorries parking |
37.1 |
3 |
-24 |
15.8 |
|||
|
F8-25 |
Lorries parking |
37.2 |
3 |
-24 |
15.9 |
|||
|
F8-26 |
Lorries parking |
37.3 |
3 |
-24 |
16.0 |
|||
|
F8-27 |
Lorries parking |
37.6 |
3 |
-24 |
16.3 |
|||
|
F8-28 |
Lorries parking |
37.7 |
3 |
-24 |
16.4 |
|||
|
F8-29 |
Lorries parking |
37.7 |
3 |
-24 |
16.4 |
|||
|
F8-30 |
Lorries parking |
37.9 |
3 |
-24 |
16.6 |
|||
|
F8-31 |
Lorries parking |
38.0 |
3 |
-24 |
16.7 |
|||
|
F8-32 |
Lorries parking |
38.2 |
3 |
-24 |
16.9 |
|||
|
F8-33 |
Lorries parking |
38.3 |
3 |
-24 |
17.0 |
|||
|
F8-34 |
Lorries parking |
38.5 |
3 |
-24 |
17.2 |
|||
|
F8-35 |
Lorries parking |
38.6 |
3 |
-24 |
17.3 |
|||
|
F8-36 |
Lorries parking |
38.8 |
3 |
-24 |
17.5 |
|||
|
F8-37 |
Lorries parking |
39.0 |
3 |
-24 |
17.7 |
|||
|
F8-38 |
Lorries parking |
39.0 |
3 |
-24 |
17.7 |
|||
|
F8-39 |
Lorries parking |
39.0 |
3 |
-24 |
17.7 |
|||
|
F8-40 |
Lorries parking |
39.1 |
3 |
-24 |
17.8 |
|||
|
F10-1 |
Sampans Idling |
48.0 |
3 |
-23 |
27.7 |
|||
|
F10-2 |
Sampans Idling |
48.1 |
3 |
-23 |
27.7 |
|||
|
F11-1 |
Fish vessels Idling |
47.5 |
3 |
-23 |
28.0 |
|||
|
F11-2 |
Fish vessels Idling |
47.6 |
3 |
-22 |
28.6 |
|||
|
F11-3 |
Fish vessels Idling |
47.8 |
3 |
-22 |
28.7 |
|||
|
F11-4 |
Fish vessels Idling |
48.3 |
3 |
-23 |
27.9 |
|||
|
F11-5 |
Fish vessels Idling |
48.4 |
3 |
-24 |
27.5 |
|||
|
F11-6 |
Fish vessels Idling |
47.2 |
3 |
-24 |
26.3 |
|||
|
F11-7 |
Fish vessels Idling |
47.4 |
3 |
-24 |
26.4 |
|||
|
F11-8 |
Fish vessels Idling |
47.7 |
3 |
-23 |
28.0 |
|||
|
F11-9 |
Fish vessels Idling |
48.5 |
3 |
-23 |
28.1 |
|||
|
F12-1 |
Unloading of fish containers from sea vessels |
38.7 |
3 |
-24 |
17.4 |
|||
|
F12-2 |
Unloading of fish containers from sea vessels |
39.2 |
3 |
-24 |
17.9 |
|||
|
F12-3 |
Unloading of fish containers from sea vessels |
39.8 |
3 |
-24 |
18.5 |
|||
|
F12-4 |
Unloading of fish containers from sea vessels |
40.4 |
3 |
-24 |
19.1 |
|||
|
F13-1 |
Auction and Marshalling |
46.7 |
3 |
-20 |
29.5 |
|||
|
F13-2 |
Auction and Marshalling |
47.3 |
3 |
-21 |
29.1 |
|||
|
F13-3 |
Auction and Marshalling |
47.8 |
3 |
-21 |
29.4 |
|||
|
F13-4 |
Auction and Marshalling |
48.3 |
3 |
-24 |
27.0 |
|||
|
F14-1 |
Weighting Operation |
51.4 |
3 |
-15 |
39.3 |
|||
|
F14-2 |
Weighting Operation |
51.9 |
3 |
-16 |
38.5 |
|||
|
F14-3 |
Weighting Operation |
52.4 |
3 |
-24 |
31.1 |
|||
|
F14-4 |
Weighting Operation |
52.9 |
3 |
-24 |
31.6 |
|||
|
F15-1 |
Loading of fish containers to lorries |
36.8 |
3 |
-23 |
16.6 |
|||
|
F15-2 |
Loading of fish containers to lorries |
37.2 |
3 |
-24 |
16.3 |
|||
|
F15-3 |
Loading of fish containers to lorries |
37.6 |
3 |
-24 |
16.3 |
|||
|
F15-4 |
Loading of fish containers to lorries |
38.0 |
3 |
-24 |
16.7 |
|||
|
|
|
|
|
|
|
|
|
|
|
Step 4: Calculation of total noise level |
|
|
|
|
|
|
|
|
|
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Reference No. |
Source |
Corrected Leq (30 min), dB(A) |
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F1-1 |
Seawater Cooling Chiller |
34 |
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F1-2 |
Seawater Cooling Chiller |
34 |
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F2-1 |
Extraction Fan |
29 |
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F2-2 |
Extraction Fan |
29 |
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F2-3 |
Extraction Fan |
28 |
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F2-4 |
Extraction Fan |
28 |
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F2-5 |
Extraction Fan |
29 |
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F2-6 |
Extraction Fan |
29 |
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F3-1 |
RCP Mechanical Ventilation (At the roof floor of
RCP) |
29 |
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F3-2 |
RCP Mechanical Ventilation (At the roof floor of
RCP) |
27 |
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F4-1 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
5 |
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F4-2 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
6 |
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F4-3 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
4 |
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F4-4 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
5 |
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F4-5 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
6 |
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F4-6 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
5 |
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F4-7 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
6 |
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F4-8 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
6 |
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F4-9 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
6 |
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F4-10 |
WFM Mechanical Ventilation (At the higher level of
sorting area - sea fronting) |
4 |
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F6-1 |
Material Hoist |
11 |
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F6-2 |
Material Hoist |
12 |
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F6-3 |
Material Hoist |
12 |
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F6-4 |
Material Hoist |
13 |
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F6-5 |
Material Hoist |
13 |
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F7-1 |
Icing Machine |
29 |
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F7-2 |
Icing Machine |
29 |
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F8-1 |
Lorries parking |
16 |
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F8-2 |
Lorries parking |
16 |
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F8-3 |
Lorries parking |
16 |
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F8-4 |
Lorries parking |
16 |
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F8-5 |
Lorries parking |
16 |
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F8-6 |
Lorries parking |
17 |
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F8-7 |
Lorries parking |
17 |
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F8-8 |
Lorries parking |
17 |
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F8-9 |
Lorries parking |
17 |
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F8-10 |
Lorries parking |
17 |
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F8-11 |
Lorries parking |
17 |
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F8-12 |
Lorries parking |
17 |
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F8-13 |
Lorries parking |
17 |
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F8-14 |
Lorries parking |
18 |
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F8-15 |
Lorries parking |
18 |
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F8-16 |
Lorries parking |
18 |
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F8-17 |
Lorries parking |
18 |
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F8-18 |
Lorries parking |
18 |
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F8-19 |
Lorries parking |
18 |
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F8-20 |
Lorries parking |
18 |
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F8-21 |
Lorries parking |
16 |
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F8-22 |
Lorries parking |
16 |
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F8-23 |
Lorries parking |
16 |
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F8-24 |
Lorries parking |
16 |
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F8-25 |
Lorries parking |
16 |
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F8-26 |
Lorries parking |
16 |
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F8-27 |
Lorries parking |
16 |
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F8-28 |
Lorries parking |
16 |
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F8-29 |
Lorries parking |
16 |
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F8-30 |
Lorries parking |
17 |
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F8-31 |
Lorries parking |
17 |
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F8-32 |
Lorries parking |
17 |
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F8-33 |
Lorries parking |
17 |
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F8-34 |
Lorries parking |
17 |
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F8-35 |
Lorries parking |
17 |
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F8-36 |
Lorries parking |
18 |
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F8-37 |
Lorries parking |
18 |
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F8-38 |
Lorries parking |
18 |
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F8-39 |
Lorries parking |
18 |
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F8-40 |
Lorries parking |
18 |
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F10-1 |
Sampans Idling |
28 |
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F10-2 |
Sampans Idling |
28 |
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F11-1 |
Fish vessels Idling |
28 |
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F11-2 |
Fish vessels Idling |
29 |
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F11-3 |
Fish vessels Idling |
29 |
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F11-4 |
Fish vessels Idling |
28 |
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F11-5 |
Fish vessels Idling |
28 |
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F11-6 |
Fish vessels Idling |
26 |
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F11-7 |
Fish vessels Idling |
26 |
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F11-8 |
Fish vessels Idling |
28 |
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F11-9 |
Fish vessels Idling |
28 |
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F12-1 |
Unloading of fish containers from sea vessels |
17 |
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F12-2 |
Unloading of fish containers from sea vessels |
18 |
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F12-3 |
Unloading of fish containers from sea vessels |
18 |
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F12-4 |
Unloading of fish containers from sea vessels |
19 |
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F13-1 |
Auction and Marshalling |
30 |
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F13-2 |
Auction and Marshalling |
29 |
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F13-3 |
Auction and Marshalling |
29 |
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F13-4 |
Auction and Marshalling |
27 |
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F14-1 |
Weighting Operation |
39 |
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F14-2 |
Weighting Operation |
39 |
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F14-3 |
Weighting Operation |
31 |
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F14-4 |
Weighting Operation |
32 |
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F15-1 |
Loading of fish containers to lorries |
17 |
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F15-2 |
Loading of fish containers to lorries |
16 |
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F15-3 |
Loading of fish containers to lorries |
16 |
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F15-4 |
Loading of fish containers to lorries |
17 |
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Total Leq (30 min), dB(A) |
46 |
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