中国科学院生态环境研究中心机构知识库
Advanced  
RCEES OpenIR  > 城市与区域生态国家重点实验室  > 期刊论文
题名: Polycyclic aromatic hydrocarbons in soils from the Central-Himalaya region: Distribution, sources, and risks to humans and wildlife
作者: Bi, Xiang; Luo, Wei; Gao, Jiajia; Xu, Lan; Guo, Junming; Zhang, Qianggong; Romesh, Kumar Y.; Giesy, John P.; Kang, Shichang; de Boer, Jacob
刊名: SCIENCE OF THE TOTAL ENVIRONMENT
出版日期: 2016-06-15
卷号: 556, 期号:0, 页码:12-22
关键词: Tibetan Plateau ; Nepal ; China ; PMF model ; Toxicity assessment ; Mountain
DOI: 10.1016/j.scitotenv.2016.03.006
部门归属: 城市与区域生态国家重点实验室
英文摘要: The Central Himalayas are not only a natural boundary between China and Nepal but also a natural barrier for transport of air masses from South Asia. In this study, 99 samples of surface soil were collected from five regions of Nepal on the southern side of the Central Himalayas, and 65 samples of surface soil were obtained from the northern side on the edge of the Tibetan Plateau, China (TPC). Concentrations of polycyclic aromatic hydrocarbons (PAHs) in soils were measured to determine their distribution, potential for accumulation, and sources, as well as risks to humans and the environment. Mean concentrations of Sigma(16)PAHs were 2.4 x 10(2) and 3.3 x 10(2) ng/g dry mass (dm) in soils collected from the TPC and Nepal, respectively. Significant correlations between concentrations of lower molecular weight PAHs (LMW-PAHs) in soils and altitude were found. Total organic carbon (TOC) in soil was positively but weakly correlated with concentrations of PAHs in the study area, which suggested little role of TOC in adsorption of PAHs. The cities of Kathmandu and Pokhara in Nepal and Nyemo (especially Zhangmu Port), Shigatse, and Lhasa on the TPC, were areas with relatively great concentrations of PAHs in soils. The main sources of PAHs identified by positive matrix factorization were emissions from motor vehicles and combustion of coal and biomass in the Central Himalayas. Calculated total benzo[ a] pyrene potency equivalents of 0.23-44 ng/g dm and index of additive cancer risk of 3.8 x 10(-3) - 9.2 x 10(-1) indicated that PAHs in almost all soils investigated posed de minimis risk of additional cancer to residents via direct contact and had no significant risk of additional cancers through consumption of potable water. Mean risk quotient values indicated that 39% of soils had a slight risk to wildlife and the ambient environment of the Central Himalayas. (C) 2016 Elsevier B.V. All rights reserved.
收录类别: SCI
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.rcees.ac.cn/handle/311016/35639
Appears in Collections:城市与区域生态国家重点实验室_期刊论文

Files in This Item:
File Name/ File Size Content Type Version Access License
Polycyclic aromatic hydrocarbons in soils from the Central-Himalaya region Distribution, sources, and risks to humans and wildlife.pdf(1792KB)期刊论文作者接受稿开放获取View 联系获取全文

Recommended Citation:
Bi, Xiang,Luo, Wei,Gao, Jiajia,et al. Polycyclic aromatic hydrocarbons in soils from the Central-Himalaya region: Distribution, sources, and risks to humans and wildlife[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2016,556(0):12-22.
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Bi, Xiang]'s Articles
[Luo, Wei]'s Articles
[Gao, Jiajia]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Bi, Xiang]‘s Articles
[Luo, Wei]‘s Articles
[Gao, Jiajia]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: Polycyclic aromatic hydrocarbons in soils from the Central-Himalaya region Distribution, sources, and risks to humans and wildlife.pdf
格式: Adobe PDF
此文件暂不支持浏览
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2018  中国科学院生态环境研究中心 - Feedback
Powered by CSpace