Journal
ATMOSPHERIC ENVIRONMENT
Volume 57, Issue -, Pages 109-115Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.atmosenv.2012.04.048
Keywords
Unintentional POPs; Emission factor; Inventory; Copper metallurgy; Raw materials
Funding
- National 973 program [2009CB421606]
- National Natural Science Foundation of China [21037003, 20921063, 21107123, 20977099]
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Field monitoring was conducted to update and develop unintentional persistent organic pollutant (unintentional POP) emission inventories for the copper metallurgy industry in China. In this study, emissions of six unintentional POPs comprised of polychlorinated dibenzo-p-dioxin and dibenzofuran (PCDD/PCDF), polychlorinated biphenyls (PCBs), polychlorinated naphthalenes (PCNs), hexachlorobenzene (HxCBz) and pentachlorobenzene (PeCBz) in stack gas and fly ash samples from primary and secondary copper smelters using different raw materials and technologies were measured and compared. Different concentrations, congener patterns and emission factors of unintentional POPs among four copper smelters were observed. Variations in unintentional POP emissions from several areas of a primary copper smelter were also investigated. The total emissions of unintentional POPs from primary and secondary copper production in 2010 in China were estimated respectively. These results provide a useful reference for the establishment of unintentional POP emission inventories and for policymakers to formulate control strategies to reduce unintentional POPs resulting from copper metallurgy. (C) 2012 Elsevier Ltd. All rights reserved.
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