Exposure to Particulate Matter in Vehicle Cabins of Private Cars
Exposure to Particulate Matter in Vehicle Cabins of Private Cars
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DOI：
10.4209/aaqr.2010.07.0054
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发表时间：
2010-12-01
影响因子：
4
通讯作者：
Kotzias, Dimitrios
中科院分区：
文献类型：
--
作者：
Geiss, Otmar;Barrero-Moreno, Josefa;Kotzias, Dimitrios
越来越多的研究表明，短期暴露于空气中的颗粒物（例如发生在汽车舱内的颗粒物）具有重要意义。在本研究中，使用光学粒子计数器测量了18辆行驶中的无烟私家车的PM10、PM2.5和PM1浓度。PM10、PM2.5和PM1的平均浓度分别为48.6 μ g/m(3)、26.9 μ g/m(3)和22.6 μ g/m(3)。研究发现，这些水平直接取决于环境空气中的PM浓度和车内通风方式的选择。在车厢内测量到的平均直径为> 0.3 μ m的颗粒数为185,723个/L。粒径在0.02-1 μ m之间的平均颗粒数为16,391个/cm(3)。发现部分浓度超过了环境空气的既定极限值。因此，驾驶车辆所花费的时间可能会显著影响每天接触颗粒物的总量，特别是在某些专业工人群体中。
A growing number of studies indicate the significance of short-term exposures to airborne particulate matter, such as those occurring in a vehicle cabin. In this study, PM10, PM2.5, PM1 concentrations were measured using optical particle counters in eighteen tobacco smoke-free private cars in movement. The average concentrations were 48.6 mu g/m(3), 26.9 mu g/m(3) and 22.6 mu g/m(3) for PM10, PM2.5 and for PM1, respectively. These levels were found to depend directly on the ambient air PM concentration and the choice of ventilation used inside the cars. The average number of particles with a diameter > 0.3 mu m measured in the cabins of the cars was 185,723 particles/L. The average number of particles with a diameter between 0.02-1 mu m was 16,391 particles/cm(3). Concentrations were found to partly exceed the established limit values for ambient air. Thus, the time spent driving a vehicle might significantly contribute to the daily overall exposure to particulate matter, especially in the case of some groups of professional workers.