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| 北京市东北城区夏季环境空气中苯系物的污染特征与健康风险评价 | |
| 引用本文： | 夏芬美,李红?,李金娟,柴发合,李宏姣,张玉洁,王学中,张玮琦,毕方. 北京市东北城区夏季环境空气中苯系物的污染特征与健康风险评价[J]. 生态毒理学报, 2014, 9(6): 1041-1052 |
| 作者姓名： | 夏芬美 李红? 李金娟 柴发合 李宏姣 张玉洁 王学中 张玮琦 毕方 |
| 作者单位： | 1. 贵州大学资源与环境工程学院,贵阳550025;中国环境科学研究院环境基准与风险评估国家重点实验室,北京100012 2. 中国环境科学研究院环境基准与风险评估国家重点实验室,北京,100012 3. 贵州大学资源与环境工程学院,贵阳,550025 4. 吉林大学地球探测科学与技术学院,长春,130026 |
| 基金项目： | 中国科学院战略性先导科技专项(B类)(XDB05010200)；国家环境保护公益性行业科研专项(201409005) |
| 摘 要： | 于2013年8月2日至31日,利用Airmo VOC在线分析仪开展了北京市东北城区环境空气中挥发性有机物(VOCs)的在线监测,分析了其中16种苯系物的污染水平、变化特征、来源及其臭氧形成潜势(OFP),并采用US EPA的健康风险评价模型对BTEX(苯、甲苯、乙苯、间-对二甲苯、邻二甲苯)和苯乙烯的人体健康风险进行了评价。结果表明,16种苯系物在观测期间总平均质量浓度为10.36μg·m-3,其中BTEX的质量浓度均值为7.45μg·m-3,约占总的苯系物质量浓度的72%。苯系物的质量浓度呈现明显的一次污染物日变化特征,即早晚较高,中午较低。苯与甲苯的质量浓度比值(B/T)平均为0.39,说明除机动车尾气外,涂料和溶剂的挥发释放对大气中苯系物也可能具有重要贡献。间-对二甲苯、1,2,4-三甲苯和甲苯的OFP值较高,对北京市大气臭氧光化学形成具有显著贡献。BTEX和苯乙烯对人体的非致癌风险危害商值在8.70E-05至3.76E-02之间,危害指数为6.19E-02,对暴露人群尚不存在明显的非致癌风险;而苯的致癌风险值为8.80E-06,超过了US EPA的建议值1.00E-06,显示苯对研究区居民身体健康存在潜在的致癌风险。 |
| 关 键 词： | 环境空气 苯系物 污染水平 健康风险 北京市 |
| 收稿时间： | 2014-06-11 |
| 修稿时间： | 2014-08-29 |
Characteristics and Health Risk Assessment of Atmospheric Benzene Homologues in Summer in the Northeastern Urban Area of Beijing, China |
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| Xia Fenmei,Li Hong,Li Jinjuan,Chai Fahe,Li Hongjiao,Zhang Yujie,Wang Xuezhong,Zhang Weiqi and Bi Fang. Characteristics and Health Risk Assessment of Atmospheric Benzene Homologues in Summer in the Northeastern Urban Area of Beijing, China[J]. Asian Journal of Ecotoxicology, 2014, 9(6): 1041-1052 | |
| Authors: | Xia Fenmei Li Hong Li Jinjuan Chai Fahe Li Hongjiao Zhang Yujie Wang Xuezhong Zhang Weiqi Bi Fang |
| Affiliation: | 1. College of Resource and Environmental Engineering, Guizhou University, Guiyang 550025, China2. State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;College of Resource and Environmental Engineering, Guizhou University, Guiyang 550025, China;State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;College of Geo-Exploration Science and Technology, Jilin University, Changchun 130026, China;State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China |
| Abstract: | |
| Keywords: | ambient air benzene homologues ambient level health risk assessment Beijing |
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