Acid Rain Examination and Chemical Composition of Atmospheric Precipitation in Tehran, Iran
Air pollution is one of the most important environmental problems in metropolitan cities like Tehran. Rain and snow, as natural events, may dissolve and absorb contaminants of the air and direct them onto the land or surface waters which become polluted. In the present study, precipitation samples w...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Thai Society of Higher Eduction Institutes on Environment
2012-01-01
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| Series: | EnvironmentAsia |
| Subjects: | |
| Online Access: | http://www.tshe.org/ea/pdf/vol5%20no1%20p39-47.pdf |
| _version_ | 1818430878470111232 |
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| author | Mohsen Saeedi Seyed Pejvak Pajooheshfar |
| author_facet | Mohsen Saeedi Seyed Pejvak Pajooheshfar |
| author_sort | Mohsen Saeedi |
| collection | DOAJ |
| description | Air pollution is one of the most important environmental problems in metropolitan cities like Tehran. Rain and snow, as natural events, may dissolve and absorb contaminants of the air and direct them onto the land or surface waters which become polluted. In the present study, precipitation samples were collected from an urbanized area of Tehran. They were analyzed for NO3-, PO43-, SO42-, pH, turbidity, Electrical Conductivity (EC), Cu, Fe, Zn, Pb, Ni, Cr, and Al. We demonstrate that snow samples were often more polluted and had lower pH than those from the rain, possibly as an effect of adsorption capability of snow flakes. Volume weighted average concentrations were calculated and compared with some other studies. Results revealed that Tehran's precipitations are much more polluted than those reported from other metropolitan cities. Cluster analysis revealed that studied parameters such as metals and acidity originated from the same sources, such as fuel combustion in residential and transportation sectors of Tehran. |
| first_indexed | 2024-12-14T15:40:24Z |
| format | Article |
| id | doaj.art-b4134360752240ff8a9e08fbdbd16315 |
| institution | Directory Open Access Journal |
| issn | 1906-1714 |
| language | English |
| last_indexed | 2024-12-14T15:40:24Z |
| publishDate | 2012-01-01 |
| publisher | Thai Society of Higher Eduction Institutes on Environment |
| record_format | Article |
| series | EnvironmentAsia |
| spelling | doaj.art-b4134360752240ff8a9e08fbdbd163152022-12-21T22:55:38ZengThai Society of Higher Eduction Institutes on EnvironmentEnvironmentAsia1906-17142012-01-01513947Acid Rain Examination and Chemical Composition of Atmospheric Precipitation in Tehran, IranMohsen SaeediSeyed Pejvak PajooheshfarAir pollution is one of the most important environmental problems in metropolitan cities like Tehran. Rain and snow, as natural events, may dissolve and absorb contaminants of the air and direct them onto the land or surface waters which become polluted. In the present study, precipitation samples were collected from an urbanized area of Tehran. They were analyzed for NO3-, PO43-, SO42-, pH, turbidity, Electrical Conductivity (EC), Cu, Fe, Zn, Pb, Ni, Cr, and Al. We demonstrate that snow samples were often more polluted and had lower pH than those from the rain, possibly as an effect of adsorption capability of snow flakes. Volume weighted average concentrations were calculated and compared with some other studies. Results revealed that Tehran's precipitations are much more polluted than those reported from other metropolitan cities. Cluster analysis revealed that studied parameters such as metals and acidity originated from the same sources, such as fuel combustion in residential and transportation sectors of Tehran.http://www.tshe.org/ea/pdf/vol5%20no1%20p39-47.pdfwet depositionheavy metalsacid rainchemical compositionTehran |
| spellingShingle | Mohsen Saeedi Seyed Pejvak Pajooheshfar Acid Rain Examination and Chemical Composition of Atmospheric Precipitation in Tehran, Iran EnvironmentAsia wet deposition heavy metals acid rain chemical composition Tehran |
| title | Acid Rain Examination and Chemical Composition of Atmospheric Precipitation in Tehran, Iran |
| title_full | Acid Rain Examination and Chemical Composition of Atmospheric Precipitation in Tehran, Iran |
| title_fullStr | Acid Rain Examination and Chemical Composition of Atmospheric Precipitation in Tehran, Iran |
| title_full_unstemmed | Acid Rain Examination and Chemical Composition of Atmospheric Precipitation in Tehran, Iran |
| title_short | Acid Rain Examination and Chemical Composition of Atmospheric Precipitation in Tehran, Iran |
| title_sort | acid rain examination and chemical composition of atmospheric precipitation in tehran iran |
| topic | wet deposition heavy metals acid rain chemical composition Tehran |
| url | http://www.tshe.org/ea/pdf/vol5%20no1%20p39-47.pdf |
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