苏北灌河口工业区土壤PAHs富集特征、溯源及风险评价
PDF下载 (240)陈洪全,于英鹏,陈 名.苏北灌河口工业区土壤PAHs富集特征、溯源及风险评价[J].宁波大学学报(理工版),2020,33(1):19-24.DOI:
Chen Hongquan,YU Yingpeng,Chen Ming.Enrichment characteristics, traceability and risk assessment of soil PAHs in Guanhe Estuary Industrial Zone of North Jiangsu Province[J].Journal of Ningbo University(Natural Science & Engineering Edition),2020,33(1):19-24.DOI:
| Title: | Enrichment characteristics, traceability and risk assessment of soil PAHs in Guanhe Estuary Industrial Zone of North Jiangsu Province |
| 作者: | 陈洪全, 于英鹏, 陈 名 |
| Author(s): | Chen Hongquan, YU Yingpeng, Chen Ming |
| 关键词: | 灌河口; 土壤; 多环芳烃; 风险评价 |
| Keywords: | Guanhe Estuary; soil; polycyclic aromatic hydrocarbons; risk assessment |
| 分类号: | X508 |
| 文献标识码: | A |
| 摘要: | 为系统了解灌河口工业区污染场地表层土壤中多环芳烃(PAHs)的污染特征、污染源及潜在的健康风险, 对16种优先控制的单体PAH进行了测试分析. 结果表明: T-PAHs质量分数呈现冬季(3 971.7 ng·g-1)>秋季(3 506.5 ng·g-1)>春季(3 504.8 ng·g-1)>夏季(2 639.1 ng·g-1)趋势. 夏季(2+3)环PAHs占比最低(13％), 冬季最高(15％), 春秋季相同(14％). 不同季节单体PAH质量分数以中高环(4、5和6环)为最高, 低环(2和3环)最低. 判源结果表明春夏季煤和生物质、石油类燃烧排放来源特征明显, 冬季石油类燃烧和汽车尾气排放来源占主体, 说明主要污染源存在季节差异. 与国内相关研究相比, 灌河工业区土壤PAHs质量分数处于中游水平. 根据加拿大土壤环境质量标准, 河口工业区不同季节有13％~23％的土壤PAHs污染超过了安全值, 存在潜在的生态风险. |
| Abstract: | To systematically understand the enrichment characteristics, pollution sources and potential health risks of polycyclic aromatic hydrocarbons (PAHs) in the surface soil of the contaminated sites in Guanhe Estuary Industrial Zone, the concentration of 16 monomer PAH controlled by the US Environmental Protection Agency is tested and analyzed. The results suggest that the concentration of T-PAHs demonstrates a trend of winter (3 971.7 ng·g-1) > autumn (3 506.5 ng·g-1) > spring (3 504.8 ng·g-1) > summer (2 639.1 ng·g-1). The proportion of (2+3) ring PAHs is found to be the lowest in summer (13%), and the highest in winter (15%), the same in spring and autumn (14%). The PAH concentration of monomer in different seasons is identified as the highest in the middle and high rings (4, 5 and 6 rings), and the lowest in the low ring (2 and 3 rings). The characteristics of coal, biomass and petroleum combustion sources is notable in spring and summer, while petroleum combustion and automobile exhaust emissions are the main sources in winter, indicating that there are seasonal differences in the main sources. The concentration of soil PAHs in the Guanhe Industrial Zone stays at the middle level compared with the results from the domestic research concerned. There are 13% to 23% soil exceeding the safety threshold in different seasons according to the Canadian Soil Environmental Quality Standards, thus there exist potential ecological risks. |
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| 备注/Memo: | 收稿日期: 2019－09－10. 宁波大学学报（理工版）网址: http://journallg.nbu.edu.cn/ 基金项目: 国家自然科学基金（41901244）; 江苏省自然科学基金（BK20160446）; 江苏省环境监测科研基金（1713）; 江苏省社会科学基金（17DDB015）; 江苏省高校哲学社会科学基金（2019SJA0228）. 第一作者: 陈洪全（1963－）, 男, 江苏盐城人, 博士/教授, 主要研究方向: 资源开发与生态保护. E-mail: yctcchq@163.com *通信作者: 于英鹏（1985－）, 男, 辽宁营口人, 博士/讲师, 主要研究方向: 多介质有机污染物. E-mail: pyy.lzu@163.com 宁波大学学报（理工版）网址：http://journallg.nbu.edu.cn/ |
