title: Influence of a municipal solid waste incinerator on ambient air PCDD/F levels: a comparison of running and non-running periods.
abstract: The concentration of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) in the ambient air of a municipal solid waste incinerator (MSWI) during its running and non-running periods was monitored in this study to investigate the contribution of the MSWI to PCDD/F pollution in the vicinal environment. Results show that the PCDD/F levels for the normal MSWI running period and after shut-down ranged 0.156-1.44 pg I-TEQ/m(3) (0.514 pg I-TEQ/m(3)) and 0.158-0.648 pg I-TEQ/m(3) (0.345 pg I-TEQ/m(3)), respectively. Significant differences were found between the results of the two surveys in 2011 and 2012. High PCDD/F levels were observed in two of the seven study sites in 2011, and these levels directly declined in 2012. A dramatic increase in PCDD/F concentrations was observed in two sites in 2012. Comparison of congener and homologue fingerprint characteristics in the two surveys, together with principal component analysis, revealed that the PCDD/F levels in all of the samples collected in 2012 and in three of the samples collected in 2011 are mainly influenced by heavy traffic. MSWI is the primary PCDD/F emission sources of the PCDD/Fs detected in the remaining samples collected in 2011.
authors.affiliation: South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China.
authors.forename: Manwen
authors.initials: M
authors.lastname: Zhang
authors.affiliation: South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China.
authors.forename: Sukun
authors.initials: S
authors.lastname: Zhang
authors.affiliation: School of Environmental and Municipal Engineering, Lanzhou JiaoTong University, Lanzhou 730070, China.
authors.forename: Zhengquan
authors.initials: Z
authors.lastname: Zhang
authors.affiliation: South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China.
authors.forename: Zhengcheng
authors.initials: Z
authors.lastname: Xu
authors.affiliation: South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China.
authors.forename: Guixian
authors.initials: G
authors.lastname: Feng
authors.affiliation: South China Institute of Environmental Sciences, Ministry of Environmental Protection, Guangzhou 510655, China. Electronic address: renmingzhong@scies.org.
authors.forename: Mingzhong
authors.initials: M
authors.lastname: Ren
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D000397:Air Pollution / Q000706:statistics & numerical data; D001572:Benzofurans / Q000032:analysis*; D004784:Environmental Monitoring; D017745:Incineration; D000072317:Polychlorinated Dibenzodioxins / Q000031:analogs & derivatives* / Q000032:analysis; D011108:Polymers / Q000032:analysis*
chemical_list: D000393:Air Pollutants; D001572:Benzofurans; D000072317:Polychlorinated Dibenzodioxins; D011108:Polymers; C016068:polychlorodibenzofuran
keywords: Fingerprint; Municipal solid waste incinerator; PCA; PCDD/Fs ambient air