Atmospheric levels and distribution of Dechlorane Plus in an E-waste dismantling region of East China

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• 作者：Huizhong Sun ; Yingming Li ; Pu Wang ; Shucheng Zheng…
• 关键词：Dechlorane Plus ; air ; E ; waste dismantling ; seasonal variation
• 刊名：Science China Chemistry
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：60
• 期：2
• 页码：305-310
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry/Food Science, general;
• 出版者：Science China Press
• ISSN：1869-1870
• 卷排序：60

文摘

Atmospheric concentrations of Dechlorane Plus (DP) were investigated in Taizhou, an electronic-waste (E-waste) dismantling region in East China. Passive air samplers with polyurethane foam (PUF) disks were deployed every three months during the sampling period of September 2009–August 2010. The total DP (syn- and anti-DP) concentrations in air ranged from not detected to 277 pg/m3, with a mean concentration of 53.9 pg/m3. A generally declining trend of DP levels was found from the E-waste dismantling region to the peripheral areas. The median values of total DP concentrations in autumn, winter, spring and summer were 52.2, 28.8, 39.7 and 30.1 pg/m3, respectively. The seasonal variations of DP concentrations were mainly associated with the intensity of E-waste dismantling activities and meteorological conditions. The mean value of anti-DP fractional abundance (f_anti) was 0.74±0.08, which was consistent with those in the commercial DP products. This study confirmed a significant emission source related to the distribution of atmospheric DP in the E-waste dismantling area and supplied information for the seasonal variation of DP in the atmosphere.