1. Industrial Technology Research Institute (ITRI), Energy and Environment Research Laboratories (EEL), Combustion Technology Division (Taiwan);http:// deptwebs.erl.itri.org.tw/0E000(in Chinese).
2. Ministry of Economic Affairs (MoEA), R.O.C. (Taiwan), web site of Energy Statistics;http://www.moeaec.gov.tw(in Chinese).
3. PAH emission from the industrial boilers
4. Environmental Protection Administration, Executive Yuan, R.O.C. (Taiwan);http://www.epa.gov.tw(in Chinese).
5. Federal Register.Standards of Performance for Electric Utility Steam Generating Units, Industrial-Commercial-Institutional Steam Generating Units, and Small Industrial-Commercial-Institutional Steam Generating Units; Final Rule; 40 CFR Part 60; U.S. Environmental Protection Agency: Washington, DC, Feb 27, 2006.