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首页> 外文期刊>Science of the total environment >Source Apportionment Of Human Personal Exposure To Volatile Organic Compounds In Homes,offices And Outdoors By Chemical Mass Balance And Genetic Algorithm Receptor Models
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Source Apportionment Of Human Personal Exposure To Volatile Organic Compounds In Homes,offices And Outdoors By Chemical Mass Balance And Genetic Algorithm Receptor Models

机译：化学物质平衡和遗传算法受体模型对人在家中，办公室和室外挥发性有机化合物的源分担

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摘要

A number of past studies have shown the prevalence of a considerable amount of volatile organic compounds (VOCs) in workplace,home and outdoor microenvironments.The quantification of an individual's personal exposure to VOCs in each of these microenvironments is an essential task to recognize the health risks.In this paper,such a study of source apportionment of the human exposure to VOCs in homes,offices,and outdoors has been presented.Air samples,analysed for 25 organic compounds and sampled during one week in homes,offices,outdoors and close to persons,at seven locations in the city of Leipzig,have been utilized to recognize the concentration pattern of VOCs using the chemical mass balance (CMB) receptor model.rnIn result,the largest contribution of VOCs to the personal exposure is from homes in the range of 42 to 73%,followed by outdoors,18 to 34%,and the offices,2 to 38% with the corresponding concentration ranges of 35 to 80 μg m~(-3),10 to 45 ng m~(-3) and 1 to 30 μg m~(- 3) respectively.The species such as benzene,dodecane,decane,methyl-cyclopentane,triethyltoluene and trichloroethylene dominate outdoors; methyl-cyclohexane,triethyltoluene,nonane,octane,tetraethyltoluene,undecane are highest in the offices; while,from the terpenoid group like 3-carane,limonene,a-pinene,b-pinene and the aromatics toluene and styrene most influence the homes.A genetic algorithm (GA) model has also been applied to carry out the source apportionment.Its results are comparable with that of CMB.
机译：过去的许多研究表明，工作场所，家庭和室外微环境中普遍存在大量挥发性有机化合物（VOC）。量化每个微环境中个人对VOC的个人暴露量是认识健康的一项重要任务本文对人体暴露在室内，办公室和室外的挥发性有机化合物的来源进行了研究。对空气中的25种有机化合物进行了分析，并在一周内对室内，办公室，室外和封闭场所进行了采样。对莱比锡市七个地点的人来说，已经利用化学物质平衡（CMB）受体模型来识别挥发性有机化合物的浓度模式。结果，挥发性有机化合物对个人暴露的最大贡献来自于家庭中浓度范围为42％至73％，室外为18％至34％，办公室为2％至38％，相应的浓度范围为35至80μgm〜（-3），10至45 ng m〜（-3 ）和1至30μgm〜（-3）res苯，十二烷，癸烷，甲基环戊烷，三乙基甲苯和三氯乙烯等物种占主导地位。办公室中甲基环己烷，三乙基甲苯，壬烷，辛烷，四乙基甲苯，十一烷的含量最高；同时，从3-戊烷，柠檬烯，α-pine烯，b-pine烯等萜类化合物和芳香族甲苯和苯乙烯中，对家庭的影响最大。还采用遗传算法（GA）模型进行了源分配。结果与CMB相当。

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