Spatial-temporal and multi-media variations of polycyclic aromatic   hydrocarbons in a highly urbanized river from South China

doi:10.1016/j.scitotenv2016.12.171

CORC > 北京大学 > 城市与环境学院

	Spatial-temporal and multi-media variations of polycyclic aromatic hydrocarbons in a highly urbanized river from South China
	Zhang, Di ; Wang, Jun-Jian ; Ni, Hong-Gang ; Zeng, Hui
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2017
关键词	PAHs Urban river Spatial-temporal variation Multi-media transport Similarity analysis ECOLOGICAL RISK-ASSESSMENT SUSPENDED PARTICULATE MATTER SURFACE SEDIMENTS PEARL RIVER YANGTZE-RIVER SOURCE APPORTIONMENT ESTUARINE SEDIMENTS SONGHUA RIVER YELLOW-RIVER PAHS
DOI	10.1016/j.scitotenv2016.12.171
英文摘要	Comprehensive studies on polycyclic aromatic hydrocarbons (PAHs) within an urban river are urgently needed to carry out strategies to limit their contamination and dispersal. Here, we analyzed 16 PAH occurrehces in water, suspended particulate matter (SPM), and sediment monthly for a year in the Maozhou River mainstream (Shenzhen, South China). Monthly rainfall positively correlated with both total PAH concentrations in filtered water (water PAHs) and SPM. Sediment PAH concentration increased from the river source to estuary. Compared to the earlier record, the sediment PAHs decreased at altnost all sites due to the high-molecular-weight PAH (>= 4 rings; especially the 4-ring PAH) degradation, except the estuary site that accumulated more low-molecular weight PAHs (<4 rings). Results suggest that the water and SPM PAHs had similar and recent sources (e.g., rainfall and storm runoff) and actively exchanged with each other. The sediment PAM had relatively different and complicated sources (fossil fuel combustion: 44.0%; oil pollution: 28.4%; biomass birrning: 27.6%), and showed a longterm accumulation effect and increasingly weaker source-sink relation with both water and SPM PAHs from river source to estuary. This study highlights a disconnection in the source and migration mechanism between the water body (including water and SPM) and sediment PAHs.(C) 2017 Elsevier B.V. All rights reserved.; National Natural Science Foundation of China [41230634, 41330748]; "Laboratory Capacity Building Project" of Shenzhen Municipal Science and Technology Innovation Council, China [ZDSY20120614145024623]; SCI(E); ARTICLE; 621-628; 581
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/474939]
专题	城市与环境学院
推荐引用方式 GB/T 7714	Zhang, Di,Wang, Jun-Jian,Ni, Hong-Gang,et al. Spatial-temporal and multi-media variations of polycyclic aromatic hydrocarbons in a highly urbanized river from South China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2017.
APA	Zhang, Di,Wang, Jun-Jian,Ni, Hong-Gang,&Zeng, Hui.(2017).Spatial-temporal and multi-media variations of polycyclic aromatic hydrocarbons in a highly urbanized river from South China.SCIENCE OF THE TOTAL ENVIRONMENT.
MLA	Zhang, Di,et al."Spatial-temporal and multi-media variations of polycyclic aromatic hydrocarbons in a highly urbanized river from South China".SCIENCE OF THE TOTAL ENVIRONMENT (2017).