Appendix 3.1 Calculations of Dust Emission Factors |
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Description of Dust Emission Source |
TSP |
Remarks |
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1 |
General construction activities |
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TSP emission factor (Mg/hectare/month) |
2.69 |
from AP-42 5th edition (S13.2.3.3) |
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Width of the exposed area along the trenching contruction (m) |
2 |
estimated |
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Assuming no dust mitigation:- |
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E (g/m2/s) |
1.037809E-04 |
calculated |
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E (g/m2/s) |
9.340278E-05 |
10% mitigation |
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E (g/m/s) |
2.075617E-04 |
calculated |
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2 |
Wind erosion of exposed areas |
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E (Mg/hectare/yr) |
0.85 |
from AP-42 5th edition (S11.9, Table 11.9-4), Western surface
coal mining |
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Width of the exposed area (m) |
2 |
estimated |
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E (g/m2/s) |
2.695332E-06 |
calculated |
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E (g/m/s) |
5.390665E-06 |
calculated |
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