1. Project Engineer, Formosa Plastics Corporation, Kaohsiung 814, Taiwan.
2. Project Engineer, Taiwan VCM Corporation, Kaohsiung 832, Taiwan.
3. Ph.D. Candidate, Institute of Environmental Engineering, National Sun Yat-Sen Univ., Kaohsiung 804, Taiwan.
4. Professor, Institute of Urban Environment, Chinese Academy of Science, Xiamen 361021, China.
5. Distinguished Professor, Institute of Environmental Engineering, National Sun Yat-Sen Univ., Kaohsiung 804, Taiwan (corresponding author).