HTML version
https://www.epd.gov.hk/eia/register/report/eiareport/eia_2352015/html/EM&A%20Manual/EM&A%20Manual_160126_clean.htm
PDF version
https://www.epd.gov.hk/eia/register/report/eiareport/eia_2352015/pdf/EM&A%20Manual/EM&A%20Manual_160126_clean.pdf