期刊名称：Environmental Research, Engineering and Management
印刷版ISSN：1392-1649
电子版ISSN：2029-2139
出版年度：2019
卷号：75
期号：2
页码：47-59
DOI：10.5755/j01.erem.75.2.21601
语种：English
出版社：Kauno Technologijos Universitetas
摘要：For the study purposes, 23 primary schools have been selected in Tiaret city, and the collection of PM2.5 wasperformed in the morning, afternoon and evening, in the presence and absence of students. The results showeda gradient of concentrations of PM2.5 by site typology. Low and average concentrations are recorded in the areasclose to forests (23.32 ± 2.77 µg/m3) and high concentrations are observed in the sites exposed to road traffic(33.57 ± 3.27 µg/m3) in winter. However, concentrations recorded in the urban sites are lower in the summer(25.33 ± 2.85 µg/m3 in sites exposed to road traffic, and 23.78 ± 1.92 µg/m3 in sites close to the forests).We also noticed that the dominance of PM2.5 was observed in the vicinity of the major axes of movement. Thedispersion of these particles is illustrated by detailed maps. The maps present information obtained by hierarchical classification. They aim to answer the need for spatial knowledge of the problem of particulate pollutionin urban areas in the city of Tiaret.
关键词：Air pollution; PM2.5 aerosols; mass concentrations; cartography; Tiaret; Algeria
