PMID- 22472101 OWN - NLM STAT- MEDLINE DCOM- 20120827 LR - 20161125 IS - 1879-1298 (Electronic) IS - 0045-6535 (Linking) VI - 88 IP - 3 DP - 2012 Jul TI - Temporal trends (2005-2009) of PCDD/Fs, PCBs, PBDEs in rice hulls from an e-waste dismantling area after stricter environmental regulations. PG - 330-5 LID - 10.1016/j.chemosphere.2012.03.006 [doi] AB - Primitive e-waste dismantling activities have been of increasing concern due to serious environmental and human health problems, and therefore authorities in China have strengthened the regulations on illegal e-waste recycling activities. In this work, we used rice hull as a passive sampler and investigated temporal trends of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), polychlorinated biphenyls (PCBs), polybrominated diphenyl ethers (PBDEs) in areas near e-waste recycling sites after the stricter regulations. Furthermore, the distribution patterns and composition profiles of these contaminants were also discussed. The average concentrations of the three groups of persistent organic pollutants (POPs) in rice hulls have markedly decreased during the period of 2005-2009. Specifically, from 12.9 (average value in 2005) to 0.37 pg WHO-TEQ/g (dry weight, dw) (in 2009) for PCDD/Fs, 47.6 (2005) to 7.10 ng g(-1)dw (2009) for PCBs, and 2.51 (2005) to 0.89 ng g(-1), dw (2009) for PBDEs. The significant decrease of combustion markers 2,3,4,7,8-PeCDF, 1,2,3,6,7,8HxCDF and PCB126, and the PCDD/PCDF ratio from 1:9 (2005) to 7:3 (2009) is likely a result of stricter regulations on open combustion activities. This study suggests that stricter control measures, strengthened laws and regulations and more environmental friendly techniques could be effective measures in reducing the release and formation of related POPs in typical e-waste dismantling sites, and these measures could further improve the quality of the environment and health of the local inhabitants. CI - Copyright (c) 2012 Elsevier Ltd. All rights reserved. FAU - Fu, Jianjie AU - Fu J AD - State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, China. FAU - Wang, Thanh AU - Wang T FAU - Wang, Pu AU - Wang P FAU - Qu, Guangbo AU - Qu G FAU - Wang, Yawei AU - Wang Y FAU - Zhang, Qinghua AU - Zhang Q FAU - Zhang, Aiqian AU - Zhang A FAU - Jiang, Guibin AU - Jiang G LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20120401 PL - England TA - Chemosphere JT - Chemosphere JID - 0320657 RN - 0 (Air Pollutants) RN - 0 (Benzofurans) RN - 0 (Dibenzofurans, Polychlorinated) RN - 0 (Halogenated Diphenyl Ethers) RN - 0 (Polychlorinated Dibenzodioxins) RN - DFC2HB4I0K (Polychlorinated Biphenyls) SB - IM MH - Air Pollutants/*analysis MH - Benzofurans/*analysis MH - China MH - Dibenzofurans, Polychlorinated MH - Environmental Monitoring MH - Halogenated Diphenyl Ethers/*analysis MH - Oryza/*metabolism MH - Polychlorinated Biphenyls/*analysis MH - Polychlorinated Dibenzodioxins/*analogs & derivatives/analysis EDAT- 2012/04/05 06:00 MHDA- 2012/08/28 06:00 CRDT- 2012/04/05 06:00 PHST- 2011/10/05 00:00 [received] PHST- 2012/02/27 00:00 [revised] PHST- 2012/03/03 00:00 [accepted] PHST- 2012/04/05 06:00 [entrez] PHST- 2012/04/05 06:00 [pubmed] PHST- 2012/08/28 06:00 [medline] AID - S0045-6535(12)00320-7 [pii] AID - 10.1016/j.chemosphere.2012.03.006 [doi] PST - ppublish SO - Chemosphere. 2012 Jul;88(3):330-5. doi: 10.1016/j.chemosphere.2012.03.006. Epub 2012 Apr 1.