Title: Chemical Characterization of PM10 in Agra, a Semi-arid Region
Abstract: Monitoring of ambient PM10 has been carried out at St. John’s College, Agra (a traffic site) during May to September 2006. The average mass concentration of PM10 was found to be 131µg m -3 . The average total water soluble particulate load (total anions and cations) is 21.4 µg m -3 . Particulate NO3 and SO4 have the highest concentration (approximately 47% of total soluble), suggesting that anthropogenic activities play important roles in controlling these particulate concentrations. The calculated ‘Σcation/Σanion’ ratio (1.4) indicates that particulate matter is an alkaline in nature and suggests that SO4, NO3 and Cl are neutralized. However, without taking into account for Ca and Mg, the calculated ‘cation/anion’ ratio reduces to 0.7 indicating that Ca and Mg ions act as main neutralizers of particulate acidity.
Publication Year: 2006
Publication Date: 2006-01-01
Language: en
Type: article
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Cited By Count: 2
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