1. Pearl River Delta Regional Air Quality Management Plan Mid-Term Review Report; Hong Kong Environmental Protection Department; 2008; available at http://www.epd.gov.hk/epd/english/news_events/press/press_080108a.htmlHKEPD (accessed July 10, 2008).
2. Study of Air Quality in the Pearl River Delta; Prepared by CH2M HILL (China) Limited for the Environmental Protection Department; HKEPD-CE 106/98; Hong Kong Special Administrative Government: Hong Kong, 2002; available at http://www.epd.gov.hk/epd/english/environmentinhk/air/studyrpts/study_pearl (accessed August 15, 2008).
3. Zheng, J.Y.; Che, W.W.; Zhang, L.J. Spatial Distribution of Regional Air Pollutant Emission Inventories in the Pearl River Delta Region; Prepared by the South China University of Technology for the U.S. Environmental Protection Agency; Office of Air Quality Planning and Standards: Research Triangle Park, NC, 2007.
4. Byun, D.W.; Ching, J.K.S. Science Algorithms of the EPA Models-3 Community Multiscale Air Quality Modeling System; EPA-600/R-99/030; U.S. Environmental Protection Agency; Office of Research and Development: Washington, DC, 1999.
5. User’s Guide Comprehensive Air Quality Model with Extensions (CAMx) Version 4.00; ENVIRON International Corporation: Novato, CA, 2003; available at http://www.camx.com (accessed May 10, 2008).