期刊名称：Iranica Journal of Energy and Environment (IJEE)
印刷版ISSN：2079-2115
电子版ISSN：2079-2123
出版年度：2011
期号：3135
页码：128-132
出版社：Noshirvani University of TEchnology
摘要：Total suspended particulates (TSPs) in ambient air of four cities of Pakistan were collected using a high volume sampling technique for subsequent heavy metal analysis. The sampling was conducted for 24hours and the concentration of TSPs ranged 568-2074, 1191-3976, 1133-4400 and 112-280 μg/m3 for Islamabad, Gujranwala, Faisalabad and Bahwalnagar, respectively. The level of TSP contamination was very high in ambient air of two big industrial cities, Gujranwala and Faisalabad. TSPs were also analyzed for Cd, Pb and Zn using flame atomic absorption spectrometry (FAAS) following digestion using a mixture of analytical grade nitric acid and hydrochloric acid. Compared to other metals, concentration of Cd was slightly high (around 325 ng/m3) in the samples of Gujranwala and Faisalabad. Overall, the order of metal concentrations were Cd > Pb > Zn.
