干旱区生态环境知识资源中心(Arid): Study on the Aral Sea crisis from the risk assessment of polycyclic aromatic hydrocarbons and organochlorine pesticides in surface water of Amu Darya river basin in Uzbekistan

Arid

DOI	10.3389/feart.2023.1295485
	Study on the Aral Sea crisis from the risk assessment of polycyclic aromatic hydrocarbons and organochlorine pesticides in surface water of Amu Darya river basin in Uzbekistan
	Jin, Miao; Wu, Jinglu; Zhang, Hongliang; Zhao, Zhonghua; Alam, Manawwer; Guo, Ru
通讯作者	Wu, JL
来源期刊	FRONTIERS IN EARTH SCIENCE
EISSN	2296-6463
出版年	2023
卷号	11
英文摘要	The Amu Darya River, as one of the important flows of the Aral Sea located in the semi-arid area of Central Asia, also performed as the primary water supply for Uzbekistan. Therefore, the residues and risks of anthropogenic-related persistent organic pollutants (POPs) in waters of the Amu Darya River were conducted in the present study to elucidate their possible effects on the water safety in such a specific area as well as on the Aral Sea Crisis from a new perspective. Thirty-nine water samples distributed along the Amu Darya River to the coastal of the Aral Sea were analyzed for both polycyclic aromatic hydrocarbons (PAHs) and organochlorine pesticides (OCPs) occurrence, showing the total concentrations of sigma OCPs and sigma PAHs in the range of 1.16-22.75 ng/L and 3.18-506.26 ng/L, respectively. Spatial differences showed higher levels for both OCPs and PAHs along the lower reaches of the Amu Darya River due to intense human activities. Source identification performed by isomer ratios indicated that dichlorodiphenyltrichloroethanes (DDTs) probably originated from recent use, while hexachlorocyclohexanes (HCHs), chlordanes, and endosulfans originated mainly from historical usage. Furthermore, the principal component analysis showed PAHs were from coal and petroleum combustion (65.2%), biomass combustion (27.2%), and industrial chemical combustion (7.64%). The human health risk assessment demonstrated no carcinogenic or non-carcinogenic risks at present. However, moderate to high ecological risks to aquatic organisms especially were observed along the lower reaches, especially the delta area. The results obtained would not only provide important basic data for such a semi-arid area but also show us the possible toxic effects induced by such pollutants, which should attract more attention in the shrinking case of the Aral Sea.
英文关键词	Amu Darya basin organochlorine pesticides polycyclic aromatic hydrocarbons ecotoxicological risk Aral Sea
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001140713000001
WOS关键词	PERSISTENT ORGANIC POLLUTANTS ; ECOLOGICAL RISK ; AMUDARYA RIVER ; REGION ; CHINA ; OCPS ; GROUNDWATER ; SEDIMENTS ; IMPACT ; SOILS
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/396478
推荐引用方式 GB/T 7714	Jin, Miao,Wu, Jinglu,Zhang, Hongliang,et al. Study on the Aral Sea crisis from the risk assessment of polycyclic aromatic hydrocarbons and organochlorine pesticides in surface water of Amu Darya river basin in Uzbekistan[J],2023,11.
APA	Jin, Miao,Wu, Jinglu,Zhang, Hongliang,Zhao, Zhonghua,Alam, Manawwer,&Guo, Ru.(2023).Study on the Aral Sea crisis from the risk assessment of polycyclic aromatic hydrocarbons and organochlorine pesticides in surface water of Amu Darya river basin in Uzbekistan.FRONTIERS IN EARTH SCIENCE,11.
MLA	Jin, Miao,et al."Study on the Aral Sea crisis from the risk assessment of polycyclic aromatic hydrocarbons and organochlorine pesticides in surface water of Amu Darya river basin in Uzbekistan".FRONTIERS IN EARTH SCIENCE 11(2023).