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太原市公园土壤中多环芳烃污染特征
Pollution characteristics of polycyclic aromatic hydrocarbons in park soil in Taiyuan,China

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程明超 1   张璐 1   何秋生 1 *   郭晓方 1   张桂香 1   王新明 2  
文摘 本研究于2016年采集太原市公园14个表层土壤样品,应用气相色谱质谱联用仪(GCMS)分析了样品中16种优先控制多环芳烃(PAHs)含量,并探讨了PAHs的来源和健康风险.结果表明,样品中Σ16PAHs平均浓度为1301.99 ng·g~(-1)(范围为294.36—2540.64 ng·g~(-1)) ,与国内其他城市相比属于较高污染水平.土壤中PAHs以4环为主,其次为5环、3环、6环、2环.PAHs空间分布受污染排放源和暴露时间的影响存在较大差异.源解析结果表明,土壤中PAHs主要来自煤和机动车排放、焦化、生物质燃烧,3种来源贡献率分别为64.58%、18.75%、16.67%.通过风险评价发现所有土壤中PAHs均超过相应的标准,存在相当高的潜在风险,对公众健康存在影响,应当引起高度重视.
其他语种文摘 Fourteen surface soil samples in this study were collected from urban park in Taiyuan in 2016. Sixteen priority polycyclic aromatic hydrocarbons (PAHs) were detected by gas chromatographmass spectrometry (GCMS) ,to investigate of the level,sources and potential health risks of PAHs in soil. The results revealed that the mean concentration of Σ16PAHs was 1338.60 ng·g~(-1) ranging from 294.36 to 2540.60 ng·g~(-1) . Compared with those in other cities of China,PAHs in soils of Taiyuan was at a higher level. Four ring PAHs were the main components in soils,followed by 5-ring, 3-ring,6-ring and 2-ring. Influenced by the emission sources and exposure duration,PAHs showed different concentrations in urban soil samples. The results of source apportionment indicated that PAHs in soils were primarily derived from coal /vehicle emission (64.58%) ,coking (18.75%) and biomass combustion (16.67%) . The health risk of PAHs in soil exceeded the limit of safety standards,indicating potential risk to human health,which should be paid more attention to.
来源 环境化学 ,2018,37(9):2031-2038 【核心库】
DOI 10.7524/j.issn.0254-6108.2017110901
关键词 土壤 ; 多环芳烃 ; 源解析 ; 风险评价 ; 太原
地址

1. 太原科技大学环境与安全学院, 太原, 030024  

2. 中国科学院广州地球化学研究所, 有机地球化学国家重点实验室, 广州, 510630

语种 中文
文献类型 研究性论文
ISSN 0254-6108
学科 环境污染及其防治
基金 国家自然科学基金 ;  国家教育部重点项目 ;  山西省回国留学人员科研项目
文献收藏号 CSCD:6338063

参考文献 共 21 共2页

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引证文献 5

1 张晗 某地区两个燃煤电厂周边农田土壤中多环芳烃污染特征及生态安全评价 环境化学,2019,38(8):1832-1841
被引 9

2 谭菊 望城饮用水源地周边土壤多环芳烃的污染特征和风险评价 湖南农业大学学报. 自然科学版,2020,46(2):206-214
被引 0 次

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