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	Status of POPs accumulation in the Yellow River Delta: From distribution to risk assessment
	Li J.; Chen, C. L.; Li, F. D.
	2016
关键词	POPs Environmental occurrence Risk assessment Origins Yellow River estuary Oil field polycyclic aromatic-hydrocarbons organochlorine pesticides polychlorinated-biphenyls agricultural soils surface soils north china sediments pahs ddt tianjin
英文摘要	The Yellow River Delta (YRD) is a large region of China with complex pollution sources and a long history of environmental deterioration. Despite this, relatively little data exists on the status of important contaminants of concern in this region. Here, we review the literature on the status of key persistent organic pollutants (POPs) of concern including organochlorine pesticides (OCPs), polycyclic aromatic hydrocarbons (PAHs), and polychlorinated biphenyls (PCBs) in the YRD. Sources, source identification methods, and spatial distribution patterns are presented. Additionally, POPs contamination levels reported in the literature were evaluated against popular regulatory limits worldwide to form a basis for overall environmental health. Our review determined that OCPs in the YRD originated mainly from current pesticide use and past agricultural pesticide application. Sources of PAHs included petrochemical inputs, coal fired plants, and wood combustion. PCB levels were impacted by the petrochemical industry as well as waste disposal of PCB containing equipment. OCPs exhibited a spatial distribution pattern that increased along the urban-rural gradient, while the opposite was seen for PAHs and PCBs. Comparisons of POPs contamination levels in the YRD with popular regulatory limits suggest that the extent of PCB contamination all mediums (sediment, soil, water, and biota) exceeded that of PAHs and OCPs. Overall pollution levels in the YRD seem to be in control; however, levels from heavily polluted point sources raise numerous concerns about the ecological health of the region and require more attention from regulatory authorities. (C) 2016 Elsevier Ltd. All rights reserved.
出处	Marine Pollution Bulletin
卷	107
期	1
页	370-378
语种	英语
ISSN号	0025-326X
DOI标识	10.1016/j.marpolbul.2016.03.063
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/43063]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Li J.,Chen, C. L.,Li, F. D.. Status of POPs accumulation in the Yellow River Delta: From distribution to risk assessment. 2016.

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