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不同动力公交流动微环境BTEX的浓度水平及健康风险
引用本文:姚超英,李爽.不同动力公交流动微环境BTEX的浓度水平及健康风险[J].中国环境监测,2012,28(2):134-137.
作者姓名:姚超英  李爽
作者单位:1. 杭州职业技术学院,浙江杭州310018;浙江大学环境科学系,浙江杭州310027
2. 浙江大学环境科学系,浙江杭州,310027
基金项目:杭州市科技局社会发展科研攻关项目(20091133B01)
摘    要:用热解析气相色谱法采集分析不同动力公交车微环境中苯系物,研究了江南某旅游城市公交汽油车、柴油车、电车、液化天然气车、油电混合车空气中苯系物的浓度以及主要公交站台的苯系物的浓度。结果表明,公交车微环境中苯系物平均浓度从高到低依次为汽油车>柴油车>油电混合车>液化天然气车>电车,其中汽油车苯含量最高,为(21.02±9.51)μg/m3,各动力公交车的苯暴露对公交司机致癌风险为2.32×10-6~4.79×10-6,超过了美国EPA制定的人体致癌风险限值。

关 键 词:公交微环境  苯系物  监测  致癌风险
收稿时间:2010/8/13 0:00:00
修稿时间:2011/6/18 0:00:00

Concentration and Health Risk Assessment of BTEX in Different Power Mobile Microenvironment
YAO Chao-ying.Concentration and Health Risk Assessment of BTEX in Different Power Mobile Microenvironment[J].Environmental Monitoring in China,2012,28(2):134-137.
Authors:YAO Chao-ying
Institution:Hangzhou Vocational & Technical College, Hangzhou 310018, China; Department of Environmental Science, Zhejiang university, Hangzhou 310027, China;Department of Environmental Science, Zhejiang university, Hangzhou 310027, China
Abstract:The concentration of BTEX in the air of the main bus stops and buses driven by gasoline,diesel,electricity,liquefied nature gas(LNS) and gas-electricity mixture in the city were investigated using thermal desorption with gas chromatography.BTEX in mobile microenvironment showed in the order gasoline-motor car>diesel-motor car>gas-electricity mixture-motor car>LNS-motor car>electricity-motor car.BTEX occurred most in gasoline-motor car and the concentration is(21.02±9.51)μg/m3 and the carcinogenic risk of benzene is varied from 2.32×10-6 to 4.79×10-6 in different kind of buses and all of them are higher than the limit set by USEPA.
Keywords:Mobile microenvironment  BTEX  Monitoring  Carcinogenic risk
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