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Monitoring the soot emissions of passing cars

机译:监控过往车辆的烟尘排放

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We report on the first application of a novel fast on-road sensing method for measurement of particulate emissions of individual passing passenger cars. The study was motivated by the shift of interest from gases to particles in connection with strong adverse health effects. The results correspond very much to findings by Beaton et al. (Science, May 19,1995) for gaseous hydrocarbon and CO emissions: A small percentage of "superpolluters" (here 5%) account for a high percentage (here 43%) of the pollution (here elemental carbon). We estimate that up to 50% of the particulate emissions of vehicles could be avoided on the basis of the present legislation, if on-road monitoring would be applied to enforce maintenance. Our fast sensing method for particles is based on photoelectron emission from the emitted airborne soot particles in combination with a CO2 sensor delivering a reference.
机译:我们报告了一种新颖的快速道路传感方法在单个过往乘用车的颗粒物排放测量中的首次应用。这项研究的动机是,从强烈的不良健康影响出发,人们将注意力从气体转移到了颗粒物上。结果与Beaton等人的发现非常相符。 (1995年5月19日,科学),有关气态碳氢化合物和CO的排放:“超级污染物”的一小部分(在此为5%)占污染物(在此为元素碳)的一大部分(在此为43%)。我们估计,如果将采用道路监控来实施维护,那么根据现行法律,最多可以避免车辆的微粒排放量的50%。我们对颗粒的快速检测方法基于排放的空气中烟尘颗粒的光电子发射,并结合提供参考的CO2传感器。

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