深圳茅洲河表层沉积物卤代多环芳烃污染研究

CORC > 北京大学 > 城市与环境学院

	深圳茅洲河表层沉积物卤代多环芳烃污染研究; Halogenated Polycyclic Aromatic Hydrocarbons in Surface Sediments of Maozhou River,Shenzhen
	孙建林 ; 倪宏刚 ; 丁超 ; 曾辉
刊名	环境科学
	2012
关键词	卤代多环芳烃表层沉积物来源解析土地利用类型深圳市 halogenated polycyclic aromatic hydrocarbons(HPAHs) surface sediment source identification land use types Shenzhen
英文摘要	利用GC-MS方法分析了卤代多环芳烃（halogenated polycyclic aromatic hydrocarbons,HPAHs）在深圳茅洲河流域表层沉积物中的含量水平以及空间分布特征.所关注的3种氯代多环芳烃（chlorinated polycyclic aromatic hydrocarbons,ClPAHs）和6种溴代多环芳烃（brominated polycyclic aromatic hydrocarbons,BrPAHs）的含量范围分别是3.00～301 ng.g^-1和7.52～285ng.g^-1.表层沉积物中HPAHs的主要污染来源包括垃圾焚烧、化石燃料的燃烧、汽车尾气以及农作物秸秆焚烧,它们所占的比例分别是40%、20.5%、11.9%和11.7%.此外,表层沉积物中ClPAHs和BrPAHs的毒性当量（toxic equivalency quotients,TEQs）范围分别是7.95～38.1 pg.g^-1和38.1～105 pg.g^-1.研究发现,HPAHs的含量与采样点周边土地利用类型有关.随着工业用地密度的增大,表层沉积物中HPAHs的含量呈现出一个先增后减的趋势;而表层沉积物中HPAHs的含量与农业用地密度呈反比关系.; Surface sediments collected from the Maozhou River watershed in Shenzhen were analyzed for the concentration levels and spatial distribution characteristics of halogenated polycyclic aromatic hydrocarbons (HPAHs) using GC-MS. Total concentrations of three chlorinated polycyclic aromatic hydrocarbons (ClPAHs) and six brominated polycyclic aromatic hydrocarbons (BrPAHs) of concern ranged from 3.00 to 301 ng x g(-1) and 7.52 to 285 ng x g(-1), respectively. Source appointments indicated that the HPAHs in these surface sediments were mainly derived from waste incineration, fossil fuel combustion, vehicle emission, and burning of crop straw, accounting for 40%, 20.5% 11.9%, and 11.7% of the total loading, respectively. Additionally, the toxic equivalency quotients (TEQ) of total ClPAHs and BrPAHs ranged from 7.95 to 38.1 pg x g(-1) and 38.1 to 105 pg x g(-1) respectively. Finally, the relationships between the HPAHs levels and different land use types were examined. Results indicated that the levels of HPAHs in surface sediments showed a decreasing trend after the first increase to the peak with the density of industrial land, but inversely proportional to the density of agricultural land.; 有机地球化学国家重点实验室开放基金课题项目; 国家自然科学基金项目; 深圳市科技局“双百人才计划”项目; PubMed; 中文核心期刊要目总览(PKU); 中国科技核心期刊(ISTIC); 中国科学引文数据库(CSCD); 0; 9; 3089-3096; 33
语种	中文
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/190743]
专题	城市与环境学院
推荐引用方式 GB/T 7714	孙建林,倪宏刚,丁超,等. 深圳茅洲河表层沉积物卤代多环芳烃污染研究, Halogenated Polycyclic Aromatic Hydrocarbons in Surface Sediments of Maozhou River,Shenzhen[J]. 环境科学,2012.
APA	孙建林,倪宏刚,丁超,&曾辉.(2012).深圳茅洲河表层沉积物卤代多环芳烃污染研究.环境科学.
MLA	孙建林,et al."深圳茅洲河表层沉积物卤代多环芳烃污染研究".环境科学 (2012).