农业环境科学学报2011，Vol.30Issue(11)：2202-2209,8.
苏南地区农田表层土壤中多环芳烃和酞酸酯的污染特征及来源
Pollution Characteristics and Sources of Polycyclic Aromatic Hydrocarbons and Phthalic Acid Esters in Agricultural Surface Soil from the Southern Jiangsu Province, China
摘要
Abstract
Polycyclic aromatic hydrocarbons(PAHs) and phthalic acid esters(PAEs) are ubiquitous in the environment. They were the key pollutants of the national survey of soil pollution. The Southern Jiangsu Province is the main part of the Yangtze River Delta, which was one of the most rapidly developing areas not only in China but also in the world. Agricultural pollution in the Southern Jiangsu Province is more concerned with the economic development. In this study, three cities including Suzhou, Wuxi, and Nantong in the Southern Jiangsu Province were selected for the determination of PAHs and PAEs. Thirteen agricultural surface soil samples, including five samples from an iron and steel factory were collected. The pollution characteristics and potential sources of PAHs and PAEs were investigated. The total PAHs and PAEs concentrations varied from 147 to 40 300 μg·kg-1, and from 0.575 to 762 μg·kg-1, respectively. Concentration of benzo[a] pyrene and the total PAHs of the surface soil was significantly correlated. Di-n-butyl phthalate( DBP) and di[2-ethylhexyl] phthalate were the predominant PAEs in the soil samples. The average PAHs and PAEs concentrations of soil nearby the iron and steel factory were 6 130 μg·kg-1 and 47.4 μg·kg-1. Coking, sintering, and steel making processes were considered the potential sources of the high molecular weight PAHs and DBP. This study described the PAHs and PAEs concentrations, distribution patterns, and potential sources in one of the most rapidly developing areas in China. The results of this study should facilitate the development of soil environmental evaluation and safe food management practices in rapidly developing areas.关键词
苏南地区/农田土壤/多环芳烃(PAHs)/酞酸酯(PAEs)/钢铁厂Key words
Southern Jiangsu Province/ agricultural surface soil/ polycyclic aromatic hydrocarbons/ phthalic acid esters/ iron and steel factory分类
资源环境引用本文复制引用
张利飞,杨文龙,董亮,黄业茹,史双昕,张烃,周丽..苏南地区农田表层土壤中多环芳烃和酞酸酯的污染特征及来源[J].农业环境科学学报,2011,30(11):2202-2209,8.基金项目
国家重点基础研究发展计划(973)项目(2009CB421602) （973）
环境化学与生态毒理学国家重点实验室开放基金项目(KF2010-20) （KF2010-20）
