Chemical composition of wet precipitation of air pollutants: A case study in Karachi, Pakistan
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| Format: | Artículo científico |
| Langue: | en |
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Universidad Nacional Autónoma de México
2014
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| author | MUHAMMAD NASIRUDDIN KHAN |
| author_facet | MUHAMMAD NASIRUDDIN KHAN |
| contents | Chemical composition of wet precipitation of air pollutants: A case study in Karachi, Pakistan MUHAMMAD NASIRUDDIN KHAN ANILA SARWAR Biología Karachi rainwater air pollution chemical composition multivariate analysis Air pollution has been considered one of the most important environmental challenges because of its direct effect on ecosystems and human health. Temporal changes in the composition of 20 samples of rainwater in the arid region of Karachi, Pakistan during the southwest monsoon of 2009 have been monitored to carry out the indirect assessment of air quality. The study has been fulfilled with the aim of identifying the level of air pollution, and the relative contribution of possible anthropogenic activities. Metal ions were analyzed to predict health risks. Rain samples were found to be alkaline (pH 5.55-7.55) due to the influence of calcium and magnesium rich particles. Continuous rains in consecutive days showed a remarkable decline in air pollution while the dry season boosted up the level of pollution. Strong correlations of total dissolved solids with K+, Na+, Ca2+, Mg2+, and Cl– were observed. A relatively weak correlation of total suspended particles with metals showed the possibility of some other particulate matters being suspended in the air. Principal component analysis and analysis of means were used to predict the anthropogenic source of pollution. This study will be helpful to formulate strategic planning and policies for controlling the level of air pollution in the city. 2014 artículo científico 0187-6236 https://www.redalyc.org/articulo.oa?id=56529644004 en http://www.redalyc.org/revista.oa?id=565 Atmósfera application/pdf Universidad Nacional Autónoma de México Atmósfera (México) Num.1 Vol.27 |
| format | Artículo científico |
| id | redalyc_56529644004 |
| institution | Redalyc |
| language | en |
| publishDate | 2014 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | Chemical composition of wet precipitation of air pollutants: A case study in Karachi, Pakistan MUHAMMAD NASIRUDDIN KHAN Biología Karachi rainwater air pollution chemical composition multivariate analysis Chemical composition of wet precipitation of air pollutants: A case study in Karachi, Pakistan MUHAMMAD NASIRUDDIN KHAN ANILA SARWAR Biología Karachi rainwater air pollution chemical composition multivariate analysis Air pollution has been considered one of the most important environmental challenges because of its direct effect on ecosystems and human health. Temporal changes in the composition of 20 samples of rainwater in the arid region of Karachi, Pakistan during the southwest monsoon of 2009 have been monitored to carry out the indirect assessment of air quality. The study has been fulfilled with the aim of identifying the level of air pollution, and the relative contribution of possible anthropogenic activities. Metal ions were analyzed to predict health risks. Rain samples were found to be alkaline (pH 5.55-7.55) due to the influence of calcium and magnesium rich particles. Continuous rains in consecutive days showed a remarkable decline in air pollution while the dry season boosted up the level of pollution. Strong correlations of total dissolved solids with K+, Na+, Ca2+, Mg2+, and Cl– were observed. A relatively weak correlation of total suspended particles with metals showed the possibility of some other particulate matters being suspended in the air. Principal component analysis and analysis of means were used to predict the anthropogenic source of pollution. This study will be helpful to formulate strategic planning and policies for controlling the level of air pollution in the city. 2014 artículo científico 0187-6236 https://www.redalyc.org/articulo.oa?id=56529644004 en http://www.redalyc.org/revista.oa?id=565 Atmósfera application/pdf Universidad Nacional Autónoma de México Atmósfera (México) Num.1 Vol.27 |
| title | Chemical composition of wet precipitation of air pollutants: A case study in Karachi, Pakistan |
| topic | Biología Karachi rainwater air pollution chemical composition multivariate analysis |
| url | https://www.redalyc.org/articulo.oa?id=56529644004 |