气候变化领域集成服务门户(CCPortal): Diffusion of polycyclic aromatic hydrocarbons between water and sediment and their ecological risks in Wuhu city, Yangtze River Delta urban agglomerations, China

CCPortal

DOI	10.1016/j.apgeochem.2020.104627
	Diffusion of polycyclic aromatic hydrocarbons between water and sediment and their ecological risks in Wuhu city, Yangtze River Delta urban agglomerations, China
	Xu, Hong; Wang, Qing; Wang, Xiaoping; Feng, Weihao; Zhu, Fei
通讯作者	Wang, Q (通讯作者)
发表日期	2020
ISSN	0883-2927
EISSN	1872-9134
卷号	119
英文摘要	To understand how black carbon (BC) might affect the nature of polycyclic aromatic hydrocarbons (PAHs) diffusion at the water-sediment interface and how their diffusion process and ecological risks vary in different functional areas due to strong heterogeneity of urban system. 24 pairs of samples (water and sediment) were collected across the watery landscape of Wuhu, China in four functional areas. The results suggested that PAHs concentrations ranged between 6.95 and 43.2 ng/L, with a mean value of 19.8 ng/L in water, and were from 32.8 to 3790 ng/g averaging 690 ng/g in sediment. The primary sources of the PAHs might be coal combustion and biomass combustion as was revealed by Positive Matrix Factorization model. BC can absorb PAHs, especially high-molecular-weight (HMW) PAHs with strong lipophilic properties, into sediment and affect their diffusion trend at water-sediment interface in different functional areas. The coexistence of BC and PAHs will affect the associated risks in aquatic environments. The water has a higher risk in the education and residential area, which was polluted by low-molecular-weight (LMW) PAHs. The sediment risk was mainly manifested in industrial areas, which are contaminated by HMW PAHs that was caused by the presence of BC. These results indicate that it is very significant for ecological risk assessment to understand the pollution status of PAHs in different functional areas and their relationship with BC.
关键词	BLACK CARBON POLYCHLORINATED-BIPHENYLS SURFACE SEDIMENTS ESTUARY PAHS SOILS DEPOSITION EXCHANGE SORPTION POLLUTANTS
英文关键词	PAHs; BC; Diffusion; Water-sediment interface; Ecological risk; Aquatic landscape
语种	英语
WOS研究方向	Geochemistry & Geophysics
WOS类目	Geochemistry & Geophysics
WOS记录号	WOS:000556136100010
来源期刊	APPLIED GEOCHEMISTRY
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/259929
推荐引用方式 GB/T 7714	Xu, Hong,Wang, Qing,Wang, Xiaoping,et al. Diffusion of polycyclic aromatic hydrocarbons between water and sediment and their ecological risks in Wuhu city, Yangtze River Delta urban agglomerations, China[J]. 中国科学院青藏高原研究所,2020,119.
APA	Xu, Hong,Wang, Qing,Wang, Xiaoping,Feng, Weihao,&Zhu, Fei.(2020).Diffusion of polycyclic aromatic hydrocarbons between water and sediment and their ecological risks in Wuhu city, Yangtze River Delta urban agglomerations, China.APPLIED GEOCHEMISTRY,119.
MLA	Xu, Hong,et al."Diffusion of polycyclic aromatic hydrocarbons between water and sediment and their ecological risks in Wuhu city, Yangtze River Delta urban agglomerations, China".APPLIED GEOCHEMISTRY 119(2020).