干旱区生态环境知识资源中心(Arid): 典型农药厂污染场地土壤中PAHs分布特征及来源分析

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	典型农药厂污染场地土壤中PAHs分布特征及来源分析
其他题名	Distribution and Sources of PAHs in Soil at the Site of a Former Typical Pesticide Plant
	张孝飞 1; 林玉锁 2; 邓绍坡 2; 龙涛 2; 徐建 2; 黄耀 1
来源期刊	生态与农村环境学报
ISSN	1673-4831
出版年	2015
卷号	31 期号:3 页码:390-397
中文摘要	以某典型农药厂退役场地为例,对场地土壤中具有较强人体危害性的化合物PAHs含量、分布特征及来源进行分析。结果表明该场地土壤中PAHs最大检出深度达到6.0 m。在检出PAHs的土壤样品中强致癌物苯并(a)芘(Bap)平均含量为1.63 mg·kg~(-1),最高含量为8.83 mg·kg~(-1)。检出PAHs的土壤样品中,60%为重度污染。随着深度的增加,高环芳烃含量及检出率均逐渐降低。0~1.2 m深度内环数≤3、4环及环数≥5的PAHs比例相当,主要单体为菲(Phe)、荧蒽(Fla)和芘(Pyr),1.2~6.0 m深度内环数≤3的PAHs所占比例最高,主要单体为萘(Nap)和2-甲基萘(2-Mnap)。特征化合物分子比例法分析表明,场地土壤中PAHs来源有2个方面:一是企业生产中使用石油产品过程中的泄漏、废弃物的燃烧等;二是场地上含有草、木、煤等垃圾杂物的燃烧。与场地原生产企业生产车间分布的对比分析结果表明,PAHs检出点位绝大部分位于原企业生产车间,表明土壤中PAHs的存在与原企业的生产活动有着较强的关联性。
英文摘要	A field investigation was carried out of the site of a deserted pesticide plant to explore content, distribution and possible sources of PAHs, a kind of chemicals extremely hazardous to human health, in the soil. Results show that PAHs were detected in the soil 0-6.0 m in depth. In the soil samples with PAHs detected, benzoapyrene (Bap), a kind of strong carcinogen, averaged 1.63 mg·kg~(-1) in concentration, with the highest reaching 8.83 mg·kg~(-1) and 60% fell into the category of "heavily polluted". With increasing soil depth, concentration and detection rate of polycyclic PAHs gradually decreased. In the 0-1.2 m soil layer, the percentages of ≤3-ring PAHs, 4-ring PAHs and≥5-ring PAHs in total PAHs were almost equal, and phenathrene (Phe), fluoranthene (Fla) and pyrene (Pyr) were the dominant chemicals. In the 1.2-6.0 m soil layer, PAHs with 3 or fewer rings became dominant, and was mainly consisted of naphthalene (Nap) and 2-methylnaphthalene (2-Mnap). Characteristic compounds molecule ratio analysis reveals that PAHs in the soil of the site came mainly from 2 sources: one is leakage of petroleum products from the plant in the process of their being used in production of pesticides and burning of wastes, and the other is burning of grass, wood, coal and other garbage. Checking with the layout of the former pesticide plant, it was found that the sites of soil samples containing PAHs coincide with those of the workshops of the former pesticide plant, indicating a strong relationship between the presence of PAHs in the soil and the production activities of the former plant.
中文关键词	农药厂 ; 分布特征 ; 来源
英文关键词	PAHs pesticide plant PAHs distribution source
语种	中文
国家	中国
收录类别	CSCD
WOS类目	ENVIRONMENTAL SCIENCES
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:5444830
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/233255
作者单位	1.南京农业大学资源与环境科学学院, 南京, 江苏 210095, 中国; 2.环境保护部南京环境科学研究所, 南京, 江苏 210042, 中国
推荐引用方式 GB/T 7714	张孝飞,林玉锁,邓绍坡,等. 典型农药厂污染场地土壤中PAHs分布特征及来源分析[J],2015,31(3):390-397.
APA	张孝飞,林玉锁,邓绍坡,龙涛,徐建,&黄耀.(2015).典型农药厂污染场地土壤中PAHs分布特征及来源分析.生态与农村环境学报,31(3),390-397.
MLA	张孝飞,et al."典型农药厂污染场地土壤中PAHs分布特征及来源分析".生态与农村环境学报 31.3(2015):390-397.