Ozone Formation Potential of Ambient Volatile Organic Compounds at Roadside in Bangkok, Thailand
Volatile organic compounds (VOCs) play an important role in atmospheric chemistry due to their high reactivity—reacting photochemically with oxides of nitrogen (NOx) in the presence of solar radiation forming tropospheric ozone (O3). Each VOC species have different effects on ozone formation accord...
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| Format: | Article |
| Language: | English |
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Environmental Research Institute, Chulalongkorn University
2021-09-01
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| Series: | Applied Environmental Research |
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| Online Access: | https://ph01-ohno.tci-thaijo.org/index.php/aer/article/view/245462 |
| _version_ | 1818497029164236800 |
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| author | Narita Fakkaew Surat Bualert Thunyapat Thongyen Thitima Rungratanaubon |
| author_facet | Narita Fakkaew Surat Bualert Thunyapat Thongyen Thitima Rungratanaubon |
| author_sort | Narita Fakkaew |
| collection | DOAJ |
| description |
Volatile organic compounds (VOCs) play an important role in atmospheric chemistry due to their high reactivity—reacting photochemically with oxides of nitrogen (NOx) in the presence of solar radiation forming tropospheric ozone (O3). Each VOC species have different effects on ozone formation according to the rates and pathways of their reactions. The objective of this study aims to examine ozone formation from the estimation of ozone formation potential (OFP). The observation of 29 VOCs species was carried out in the urban area near the roads of Bangkok, Thailand. Measurements were carried out during the dry season, from 16th February to 15th March, 2018. The air samples were analyzed using gas chromatography flame ionization detector (GC-FID). The results showed that toluene had the highest VOCs concentration followed by propane, and carbon tetrachloride (CCl4). The average ratio of benzene to toluene (B/T) and toluene to benzene (T/B) indicate that both toluene and benzene emitted from industrial area and vehicular emission. Ratio of m/p-xylene to benzene (m/p-X/B) indicate that BTEX emitted far from the source. The ozone formation potential indicated that toluene was the main VOC contributing to the total ozone formation. High VOCs concentration in monitoring site was influenced by vehicular sources and the sea breeze brought the pollutants back to the land.
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| first_indexed | 2024-12-10T18:40:13Z |
| format | Article |
| id | doaj.art-a668ddd2e267449f8713265de16a5c71 |
| institution | Directory Open Access Journal |
| issn | 2287-0741 2287-075X |
| language | English |
| last_indexed | 2024-12-10T18:40:13Z |
| publishDate | 2021-09-01 |
| publisher | Environmental Research Institute, Chulalongkorn University |
| record_format | Article |
| series | Applied Environmental Research |
| spelling | doaj.art-a668ddd2e267449f8713265de16a5c712022-12-22T01:37:40ZengEnvironmental Research Institute, Chulalongkorn UniversityApplied Environmental Research2287-07412287-075X2021-09-01434Ozone Formation Potential of Ambient Volatile Organic Compounds at Roadside in Bangkok, ThailandNarita Fakkaew0Surat Bualert1Thunyapat Thongyen2Thitima Rungratanaubon3Faculty of Environment, Kasetsart University, Bangkok, ThailandFaculty of Environment, Kasetsart University, Bangkok, ThailandFaculty of Environment, Kasetsart University, Bangkok, ThailandFaculty of Environment, Kasetsart University, Bangkok, Thailand Volatile organic compounds (VOCs) play an important role in atmospheric chemistry due to their high reactivity—reacting photochemically with oxides of nitrogen (NOx) in the presence of solar radiation forming tropospheric ozone (O3). Each VOC species have different effects on ozone formation according to the rates and pathways of their reactions. The objective of this study aims to examine ozone formation from the estimation of ozone formation potential (OFP). The observation of 29 VOCs species was carried out in the urban area near the roads of Bangkok, Thailand. Measurements were carried out during the dry season, from 16th February to 15th March, 2018. The air samples were analyzed using gas chromatography flame ionization detector (GC-FID). The results showed that toluene had the highest VOCs concentration followed by propane, and carbon tetrachloride (CCl4). The average ratio of benzene to toluene (B/T) and toluene to benzene (T/B) indicate that both toluene and benzene emitted from industrial area and vehicular emission. Ratio of m/p-xylene to benzene (m/p-X/B) indicate that BTEX emitted far from the source. The ozone formation potential indicated that toluene was the main VOC contributing to the total ozone formation. High VOCs concentration in monitoring site was influenced by vehicular sources and the sea breeze brought the pollutants back to the land. https://ph01-ohno.tci-thaijo.org/index.php/aer/article/view/245462Ozone formation potentialUrban areaBangkokVolatile organic compoundsVehicle exhausts |
| spellingShingle | Narita Fakkaew Surat Bualert Thunyapat Thongyen Thitima Rungratanaubon Ozone Formation Potential of Ambient Volatile Organic Compounds at Roadside in Bangkok, Thailand Applied Environmental Research Ozone formation potential Urban area Bangkok Volatile organic compounds Vehicle exhausts |
| title | Ozone Formation Potential of Ambient Volatile Organic Compounds at Roadside in Bangkok, Thailand |
| title_full | Ozone Formation Potential of Ambient Volatile Organic Compounds at Roadside in Bangkok, Thailand |
| title_fullStr | Ozone Formation Potential of Ambient Volatile Organic Compounds at Roadside in Bangkok, Thailand |
| title_full_unstemmed | Ozone Formation Potential of Ambient Volatile Organic Compounds at Roadside in Bangkok, Thailand |
| title_short | Ozone Formation Potential of Ambient Volatile Organic Compounds at Roadside in Bangkok, Thailand |
| title_sort | ozone formation potential of ambient volatile organic compounds at roadside in bangkok thailand |
| topic | Ozone formation potential Urban area Bangkok Volatile organic compounds Vehicle exhausts |
| url | https://ph01-ohno.tci-thaijo.org/index.php/aer/article/view/245462 |
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