Temporal and spatial variations of polycyclic aromatic hydrocarbons (PAHs) in soils from a typical organic sewage irrigation area

doi:10.1016/j.scitotenv.2017.08.316

	Temporal and spatial variations of polycyclic aromatic hydrocarbons (PAHs) in soils from a typical organic sewage irrigation area
	Wu, Bo 1,2; Guo, Shuhai 1,2; Li, Xiaojun 1,2; Wang, Jianing 3
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2018-02-01
卷号	613 页码:513-520
关键词	Polycyclic Aromatic Hydrocarbons (Pahs) Soil Source Apportionment Sewage Irrigation Superposition Pollution
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2017.08.316
英文摘要	In the water shortage countries and areas, untreated sewage irrigation led to the extensive organic pollution of farmland soil, which seriously threatened environmental security. In this study, we selected Shenfu irrigation area (SIA) as the study area, and it was the first and largest organic sewage irrigation area in China. We analyzed the temporal and spatial variations in concentrations, risk and sources of polycyclic aromatic hydrocarbons (PAHs) in soil of the SIA. The results show that the PAH concentrations decreased slowly and environmental risk fluctuated after stopping sewage irrigation. However, the correlation and divergence analysis indicate that PAHs in surface soils might be derived from traffic emissions besides sewage irrigation. Based on factor analysis with non-negative constraints, the contribution of irrigation decreased from 92.9% to 59.4%, and contribution of traffic increased from 7.1% to 40.6%. Thus, the superposition of the residual PAHs from sewage irrigation and the new input PAHs from traffic emission should be considered for the pollution control. (C) 2017 Elsevier B.V. All rights reserved.
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000414160500055
内容类型	期刊论文
源URL	[http://210.72.129.5/handle/321005/122919]
专题	中国科学院沈阳应用生态研究所
通讯作者	Guo, Shuhai
作者单位	1.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Liaoning, Peoples R China 2.Natl Local Joint Engn Lab Contaminated Soil Remed, Shenyang 110016, Liaoning, Peoples R China 3.Shandong Acad Sci, Ecol Inst, Jinan 250014, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Wu, Bo,Guo, Shuhai,Li, Xiaojun,et al. Temporal and spatial variations of polycyclic aromatic hydrocarbons (PAHs) in soils from a typical organic sewage irrigation area[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2018,613:513-520.
APA	Wu, Bo,Guo, Shuhai,Li, Xiaojun,&Wang, Jianing.(2018).Temporal and spatial variations of polycyclic aromatic hydrocarbons (PAHs) in soils from a typical organic sewage irrigation area.SCIENCE OF THE TOTAL ENVIRONMENT,613,513-520.
MLA	Wu, Bo,et al."Temporal and spatial variations of polycyclic aromatic hydrocarbons (PAHs) in soils from a typical organic sewage irrigation area".SCIENCE OF THE TOTAL ENVIRONMENT 613(2018):513-520.