title: [Study on influence of traffic and meteorological factors on inhalable particle matters of different size].
abstract: To study the effects of meteorological and traffic factors on the PM2.5 and PM10 concentrations, 28 samples were taken in the Third Ring Road of Beijing, and dust fall weight, velocity of vehicle, traffic volume, temperature, humidity, wind speed, PM2.5 and PM10 concentration data were collected for these samples. Analysis of the collected data on dust fall weight indicated that the traffic had a significant impact on the air quality. The average dust fall weights in the road and away from the traffic source were 0. 284g and 0. 016 g, respectively. The results of the partial experiment indicated that concentrations of PM2.5 and PM10 in residential areas were lower than those in road, furthermore, the PM2.5 at night was often higher than that during daytime, and the mean values of the difference in PM2.5 and PM10 were 101074 n.(cf)-1 and 15386 n.(cf)-1, respectively. Through analysis using the best subset prediction model, it was indicated that PM2.5 and PM10 were both most significantly influenced by temperature and humidity, followed by wind speed, velocity of vehicle and traffic volume. Comparing with PM10, the velocity of vehicle, traffic volume and wind speed had a more significant influence on PM2.5.
authors.affiliation: Key Laboratory of 3D Information Acquisition and Application of Ministry of Education, Capital Normal University, Beijing, 100048, China. luonana0331@aliyun.cn
authors.forename: Na-Na
authors.initials: NN
authors.lastname: Luo
authors.affiliation: Key Laboratory of 3D Information Acquisition and Application of Ministry of Education, Capital Normal University, Beijing, 100048, China.
authors.forename: Wen-Ji
authors.initials: WJ
authors.lastname: Zhao
authors.affiliation: Key Laboratory of 3D Information Acquisition and Application of Ministry of Education, Capital Normal University, Beijing, 100048, China.
authors.forename: Xing
authors.initials: X
authors.lastname: Yan
authors.affiliation: Key Laboratory of 3D Information Acquisition and Application of Ministry of Education, Capital Normal University, Beijing, 100048, China.
authors.forename: Zhao-Ning
authors.initials: ZN
authors.lastname: Gong
authors.affiliation: Key Laboratory of 3D Information Acquisition and Application of Ministry of Education, Capital Normal University, Beijing, 100048, China.
authors.forename: Qiu-Lin
authors.initials: QL
authors.lastname: Xiong
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D002681:China; D002947:Cities; D004391:Dust; D004784:Environmental Monitoring; D006813:Humidity; D008962:Models, Theoretical; D010316:Particle Size; D052638:Particulate Matter / Q000032:analysis*; D013696:Temperature; D001335:Vehicle Emissions; D014919:Wind
chemical_list: D000393:Air Pollutants; D004391:Dust; D052638:Particulate Matter; D001335:Vehicle Emissions