VOC source identification from personal and residential indoor, outdoor and workplace microenvironment samples in EXPOLIS-Helsinki, Finland
VOC source identification from personal and residential indoor, outdoor and workplace microenvironment samples in EXPOLIS-Helsinki, Finland
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DOI：
10.1016/s1352-2310(01)00271-0
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发表时间：
2001-10-01
影响因子：
5
通讯作者：
Jantunen, M
中科院分区：
文献类型：
--
作者：
Edwards, RD;Jurvelin, J;Jantunen, M
主成分分析（方差最大旋转）被用来确定30个目标挥发性有机化合物（VOCs）在住宅室外，住宅室内和工作场所的微环境和个人48小时暴露样本的共同来源，作为一个组成部分的EXPOLIS-Helsinki研究。在住宅室外微环境中的挥发性有机化合物浓度的变化主要是与污染物的远距离运输，其次是交通排放，树木和产品排放的排放。在无烟草烟雾（ETS）的住宅室内环境中，VOC浓度的变化主要是与室内清洁产品相关的化合物，其次是与交通排放、污染物远距离运输和产品排放相关的化合物。通常与交通排放和污染物远距离迁移有关的化合物的室内/室外比率中位数超过1，在某些情况下相当大，表明室内来源的贡献很大。不同季节室内/室外比例中位数的变化反映了不同的季节通风模式，因为通风增加导致室内环境中具有室内来源的VOC化合物稀释。工作场所挥发性有机化合物浓度的变化主要是由与交通排放相关的化合物，其次是产品排放，长距离运输和空气清新剂。在无ETS个人暴露样本中，VOC浓度的变化主要是与交通排放相关的化合物，其次是长距离运输、清洁产品和产品排放。个人暴露样本中的挥发性有机化合物来源反映了在不同微环境中所花费的时间，个人暴露样本没有被任何一个微环境充分代表，这表明需要个人暴露采样。(C)2001爱思唯尔科技有限公司版权所有。
Principal component analyses (varimax rotation) were used to identify common sources of 30 target volatile organic compounds (VOCs) in residential outdoor, residential indoor and workplace microenvironment and personal 48-h exposure samples, as a component of the EXPOLIS-Helsinki study. Variability in VOC concentrations in residential outdoor micro environments was dominated by compounds associated with long-range transport of pollutants, followed by traffic emissions, emissions from trees and product emissions. Variability in VOC concentrations in environmental tobacco smoke (ETS) free residential indoor environments was dominated by compounds associated with indoor cleaning products, followed by compounds associated with traffic emissions, long-range transport of pollutants and product emissions. Median indoor/outdoor ratios for compounds typically associated with traffic emissions and long-range transport of pollutants exceeded 1, in some cases quite considerably, indicating substantial indoor source contributions. Changes in the median indoor/outdoor ratios during different seasons reflected different seasonal ventilation patterns as increased ventilation led to dilution of those VOC compounds in the indoor environment that had indoor sources. Variability in workplace VOC concentrations was dominated by compounds associated with traffic emissions followed by product emissions, long-range transport and air fresheners. Variability in VOC concentrations in ETS free personal exposure samples was dominated by compounds associated with traffic emissions, followed by long-range transport, cleaning products and product emissions. VOC sources in personal exposure samples reflected the times spent in different microenvironments, and personal exposure samples were not adequately represented by any one microenvironment, demonstrating the need for personal exposure sampling. (C) 2001 Elsevier Science Ltd. All rights reserved.