CAJ | 학술논문

为提高机动车尾气排放可吸入颗粒物PM10成分谱的代表性和准确性，提出并采用在机动车尾气检测线上采用稀释通道采样器随机采集机动车排出PM10的采样方法。采集了591辆轻、重型汽油车和柴油车尾气排放PM10，测试并分析了颗粒物的27种组分。数据表明：机动车排放颗粒物PM10中含量丰富的组分为OC、EC、NH4＋、NO3-和SO2-4；柴油车排放PM10中OC和 EC 的质量分数为49?08％，是汽油车（38?38％）的1?3倍，汽油车的 OC/EC （2?36）是柴油车（0?78）的3倍；汽油车排放PM10中的二次转化产物（SO42-＋NH4＋＋NO3-）的质量分数为19?37％，是柴油车（3?57％）的5?4倍；汽油车排放NH4＋是柴油车的5?3倍。
위제고궤동차미기배방가흡입과립물PM10성분보적대표성화준학성，제출병채용재궤동차미기검측선상채용희석통도채양기수궤채집궤동차배출PM10적채양방법。채집료591량경、중형기유차화시유차미기배방PM10，측시병분석료과립물적27충조분。수거표명：궤동차배방과립물PM10중함량봉부적조분위OC、EC、NH4＋、NO3-화SO2-4；시유차배방PM10중OC화 EC 적질량분수위49?08％，시기유차（38?38％）적1?3배，기유차적 OC/EC （2?36）시시유차（0?78）적3배；기유차배방PM10중적이차전화산물（SO42-＋NH4＋＋NO3-）적질량분수위19?37％，시시유차（3?57％）적5?4배；기유차배방NH4＋시시유차적5?3배。
In order to improve the representation and accuracy of inhalable particulate matter ( PM10 ) and fine particulate matter component spectrum from vehicle. This paper proposed and used a new random sampling method of vehicle exhaust PM that using dilution tunnel in vehicle annual inspection station. Collection of PM10 from more than 591 petrol and diesel exhaust emissions, 27 kinds chemical composition of PM10 was analyzed. The result showed that: Main chemical composition of particulate matter ( PM10 ) from vehicle is OC、EC、NH4+、NO3- and SO2-4 , the OC + EC mass percentage of 49?08 % in PM10 of diesel vehicles is gasoline vehicles (38?38%) 1?3 times, the ratio of OC / EC in petrol vehicles(2?36) is a diesel car (0?78) 3 times. The secondary components ( NH4+ +NO3- +SO2-4 ) of gasoline vehicles in mass percentage of 19?37%, is 5?4 times of diesel vehicles (3?57%). The mass percentage of NH4+ of gasoline vehicles is 5?3 times of diesel vehicles.