| 南京北郊大气BTEX变化特征和健康风险评估 |
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| 引用本文： | 张玉欣,安俊琳,王健宇,王俊秀,师远哲,刘静达,梁静舒.南京北郊大气BTEX变化特征和健康风险评估[J].环境科学,2017,38(2):453-460. |
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| 作者姓名： | 张玉欣 安俊琳 王健宇 王俊秀 师远哲 刘静达 梁静舒 |
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| 作者单位： | 南京信息工程大学, 气象灾害教育部重点实验室, 气候与环境变化国际合作联合实验室, 气象灾害预报预警与评估协同创新中心, 中国气象局气溶胶与云降水重点开放实验室, 南京 210044,南京信息工程大学, 气象灾害教育部重点实验室, 气候与环境变化国际合作联合实验室, 气象灾害预报预警与评估协同创新中心, 中国气象局气溶胶与云降水重点开放实验室, 南京 210044,南京信息工程大学, 气象灾害教育部重点实验室, 气候与环境变化国际合作联合实验室, 气象灾害预报预警与评估协同创新中心, 中国气象局气溶胶与云降水重点开放实验室, 南京 210044,南京信息工程大学, 气象灾害教育部重点实验室, 气候与环境变化国际合作联合实验室, 气象灾害预报预警与评估协同创新中心, 中国气象局气溶胶与云降水重点开放实验室, 南京 210044,南京信息工程大学, 气象灾害教育部重点实验室, 气候与环境变化国际合作联合实验室, 气象灾害预报预警与评估协同创新中心, 中国气象局气溶胶与云降水重点开放实验室, 南京 210044,南京信息工程大学, 气象灾害教育部重点实验室, 气候与环境变化国际合作联合实验室, 气象灾害预报预警与评估协同创新中心, 中国气象局气溶胶与云降水重点开放实验室, 南京 210044,南京信息工程大学, 气象灾害教育部重点实验室, 气候与环境变化国际合作联合实验室, 气象灾害预报预警与评估协同创新中心, 中国气象局气溶胶与云降水重点开放实验室, 南京 210044 |
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| 摘 要： | 采用2013年3月21日~2014年2月28日GC5000在线气相色谱仪对南京北郊大气中的BTEX进行观测,利用EPA人体暴露分析评价方法对BTEX进行健康风险评估.结果表明,南京北郊大气中BTEX总量呈现春季冬季秋季夏季变化特征.BTEX浓度07:00~10:00与17:00~20:00时期较高,13:00~15:00之间最低;周末BTEX浓度高于工作日.BTEX来源包括交通源、工业源排放与溶剂挥发.BTEX四季HQ均表现为苯二甲苯乙苯甲苯,所有分析时段内HQ风险值都在安全范围.南京北郊R值呈现冬季秋季春季夏季的分布规律,R在所有分析时间都超安全阈值,存在致癌风险.
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| 关 键 词： | 南京北郊 BTEX 健康风险评估 非致癌风险危害商值 致癌风险 |
| 收稿时间： | 2016/7/18 0:00:00 |
| 修稿时间： | 2016/9/7 0:00:00 |
Variation Characteristics and Health Risk Assessment of BTEX in the Atmosphere of Northern Suburb of Nanjing |
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| ZHANG Yu-xin,AN Jun-lin,WANG Jian-yu,WANG Jun-xiu,SHI Yuan-zhe,LIU Jing-da and LIANG Jing-shu.Variation Characteristics and Health Risk Assessment of BTEX in the Atmosphere of Northern Suburb of Nanjing[J].Chinese Journal of Environmental Science,2017,38(2):453-460. |
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| Authors: | ZHANG Yu-xin AN Jun-lin WANG Jian-yu WANG Jun-xiu SHI Yuan-zhe LIU Jing-da and LIANG Jing-shu |
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| Institution: | Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Joint International Research Laboratory of Climate and Environment Change(ILCEC), Key Laboratory of Meteorological Disaster, Ministry of Education(KLME), Nanjing University of Information Science & Technology, Nanjing 210044, China,Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Joint International Research Laboratory of Climate and Environment Change(ILCEC), Key Laboratory of Meteorological Disaster, Ministry of Education(KLME), Nanjing University of Information Science & Technology, Nanjing 210044, China,Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Joint International Research Laboratory of Climate and Environment Change(ILCEC), Key Laboratory of Meteorological Disaster, Ministry of Education(KLME), Nanjing University of Information Science & Technology, Nanjing 210044, China,Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Joint International Research Laboratory of Climate and Environment Change(ILCEC), Key Laboratory of Meteorological Disaster, Ministry of Education(KLME), Nanjing University of Information Science & Technology, Nanjing 210044, China,Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Joint International Research Laboratory of Climate and Environment Change(ILCEC), Key Laboratory of Meteorological Disaster, Ministry of Education(KLME), Nanjing University of Information Science & Technology, Nanjing 210044, China,Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Joint International Research Laboratory of Climate and Environment Change(ILCEC), Key Laboratory of Meteorological Disaster, Ministry of Education(KLME), Nanjing University of Information Science & Technology, Nanjing 210044, China and Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Joint International Research Laboratory of Climate and Environment Change(ILCEC), Key Laboratory of Meteorological Disaster, Ministry of Education(KLME), Nanjing University of Information Science & Technology, Nanjing 210044, China |
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| Abstract: | BTEX concentrations were determined by GC5000 online gas chromatography in the atmosphere of the north suburb of Nanjing in March 2013 to February 2014, using the EPA human exposure analysis evaluation method for benzene series compounds of volatile organic compounds (VOCs) in health risk assessment. The results showed that the total amount of BTEX showed the variation characteristics of spring > winter > autumn > summer. BTEX concentration was higher in the periods of 07:00-10:00 and 17:00-20:00, and the lowest was detected between 13:00-15:00; At the weekend, the concentration of BTEX was higher than on the working day. The sources of BTEX included traffic sources, industrial sources and solvent evaporation. The HQ of BTEX in all four seasons showed the order of benzene > xylene > ethylbenzene > toluene, and the HQ risk values were within the safety range in all analysis periods. The distribution of R value was winter > autumn > spring > summer, and R was higher than the safety threshold for all the analyses, indicating the existence of carcinogenic risk. |
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| Keywords: | northern suburb of Nanjing BTEX health risk assessment non carcinogenic risk hazard quotient carcinogenic risk |
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