Spatial variations in the concentrations of traffic-related pollutants in indoor and outdoor air in Huddersfield, England
Spatial variations in the concentrations of traffic-related pollutants in indoor and outdoor air in Huddersfield, England
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DOI：
10.1016/s1352-2310(99)00321-0
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发表时间：
2000-01-01
影响因子：
5
通讯作者：
Lebret, E
中科院分区：
文献类型：
--
作者：
Kingham, S;Briggs, D;Lebret, E
作为空气质量与健康小区域变化 (SAVIAH-2) 研究的一部分，对英国哈德斯菲尔德地区住宅室内外的多种交通相关污染物（PM10、PM2.5、苯、B(a)P 和 PAH 的质量和吸光度）进行了监测。房屋的选择是基于距附近主要道路的距离。在两次为期两周的时间内进行监测。每次，使用主动泵采样器在 24 小时内测量成对的“邻近”（距主干道 50 m 以内）和“背景”（距主干道 > 50 m）房屋的污染水平。污染物浓度的空间变化不大，在大多数情况下，与距道路的距离或模拟的 NO 浓度没有显着相关性。因此，这些常用的测量方法似乎都无法为本研究区域的这些交通相关污染物提供可靠的指标。几种测量的污染物显示出显着的相互相关性，但细颗粒物部分的总体吸光度显示出最强的相关性，并且似乎为这些污染物提供了最佳的一般标记，也许反映了柴油车作为主要排放源的重要性。 PM10、PM2.5的室内外比值以及这些组分的吸光度均低于1，但其他污染物的室内外浓度没有表现出显着差异。然而，所有污染物在室内和室外浓度之间都显示出显着的正相关性，其中颗粒物部分的吸光度测量值的相关性最强。这表明室外浓度可以为流行病学研究中交通相关污染物的暴露提供有用的衡量标准。 (C) 2000 Elsevier Science Ltd. 保留所有权利。
As part of the Small Area Variations in Air Quality and Health (SAVIAH-2) study, monitoring-was carried out for a number of traffic related pollutants (mass and absorbance of PM10, and PM2.5, benzene, B(a)P and PAHs) indoors and outdoors of homes in an area of Huddersfield, England. Homes were selected on the basis of their distance from nearby major roads. Monitoring was conducted during two 2-week periods. On each occasion, pollution levels were measured in paired 'proximity' (within 50 m of the main road) and 'background' ( > 50 m from the main road) homes, for a 24 h period, using active pump samplers. Spatial variations in pollutant concentrations were modest and in most cases did not show significant associations either with distance from road or modelled NO, concentrations. Neither of these commonly used measures would thus seem to provide reliable indicators for these traffic-related pollutants in this study area. Several of the measured pollutants showed significant inter-correlations, but overall absorbance of the fine particulate fraction displayed the strongest correlations, and would appear to provide the best general marker for these pollutants, perhaps reflecting the importance of diesel vehicles as a major emission source. Indoor-outdoor ratios of PM10, PM2.5, and absorbance of these fractions were below 1, but other pollutants did not show significant differences between indoor and outdoor concentrations. However, all the pollutants showed significant positive correlations between indoor and outdoor concentrations, strongest correlations being seen for the absorbance measures of the particulate fraction. This suggests that outdoor concentrations may give a useful measure of exposures to traffic-related pollutants for use in epidemiological studies. (C) 2000 Elsevier Science Ltd. All rights reserved.