http://www.epd.gov.hk/epd/misc/ehk08/en/air/index.html
Environmental Protection Department
Environment Hong Kong 2008 – Quality Living Environment
Clear Objectives for Clearer Air
To protect the health and well being of the community by achieving and maintaining satisfactory air quality through intervention in the planning process and by enforcing the controls in the Air Pollution Control Ordinance and the Ozone Layer Protection Ordinance.