Technical Memorandum on Environmental Impact Assessment Process
Annex 4
ANNEX 4 : CRITERIA FOR EVALUATING AIR QUALITY IMPACT AND HAZARD TO LIFE
1. Air Quality Impact
- 1.1 The criteria for evaluating air quality impact include the following:
- meet the Air Quality Objectives and other standards established under the Air Pollution Control Ordinance (Cap. 311);
- meet 5 odour units based on an averaging time of 5 seconds for odour prediction assessment;
- for air pollutants not established under the Air Pollution Control Ordinance nor above: meet the standards or criteria adopted by recognized international organizations such as the World Health Organization or the United States Environmental Protection Agency as to be agreed with the Director.
- 1.1 The criteria for evaluating air quality impact include the following:
2. Hazard to Life
- 2.1 The criterion for hazard to human life is to meet the Risk Guidelines, as shown in Figure 1.
