Particulate Matter and Its Source Apportionment in Peshawar, Northern Pakistan

Khan Alam ； Naheed Rahman ； Hidayat Ullah Khan ； Bibi Safia Haq ； Said Rahman

《Aerosol and Air Quality Research》 15卷2期 (2015/04) Pp. 634-647

https://doi.org/10.4209/aaqr.2014.10.0250

並列摘要

The present work is undertaken to investigate the aerosol volume and mass size distribution, concentration of Particulate Matter (PM) and its source apportionment by using GRIMM spectrometer data in the city of Peshawar, Northern Pakistan. In Peshawar, the concentration of Particulate matter (PM_(2.5) and PM_(10)) was noticed to increase day by day due to rapid urbanization and industrialization. The use of several transportation activities, construction of buildings, roads and overhead bridges has badly affected the atmosphere of this region. Positive Matrix Factorization (PMF) Model has been used to find out different sources of PM in Peshawar. The data were collected for twenty days in April 2011 for both morning and afternoon periods. It has been observed that the values of aerosol volume size distribution were almost high during morning and afternoon rush hours. The mean concentrations of PM_(10) and PM_(2.5) were determined to be 480 μg/m3 and 172 μg/m^3, respectively. A reasonably significant correlation (R^2=0.65) was also found between observed and expected PM mass. The PMF result revealed five (05) sources in Peshawar, which were re-suspended road/soil dust, vehicular, industrial, brick kiln emission and household combustion emission.

並列關鍵字

PM_(10) ； Size distribution ； Mass concentration ； PMF ； Peshawar