Formation potentiality and source apportionment analysis of secondary organic aerosol in urban and suburban area, Thailand
Ambient volatile organic compounds (VOCs) concentrations measured in Bangkok and its suburb in Thailand were estimated for their secondary organic aerosol formation potential (SOAP) to elucidate the major compounds contributing to the formation of secondary fine particulates. VOCs were collected t...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Prince of Songkla University
2022-02-01
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| Series: | Songklanakarin Journal of Science and Technology (SJST) |
| Subjects: | |
| Online Access: | https://rdo.psu.ac.th/sjst/journal/44-1/28.pdf |
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| author | Lalidaporn Punya Sarawut Thepanondh Suphaphat Kwonpongsagoon Wanna Laowagul Nuttakit Sukjit Pattaranan Hanma |
| author_facet | Lalidaporn Punya Sarawut Thepanondh Suphaphat Kwonpongsagoon Wanna Laowagul Nuttakit Sukjit Pattaranan Hanma |
| author_sort | Lalidaporn Punya |
| collection | DOAJ |
| description | Ambient volatile organic compounds (VOCs) concentrations measured in Bangkok and its suburb in Thailand were
estimated for their secondary organic aerosol formation potential (SOAP) to elucidate the major compounds contributing to the
formation of secondary fine particulates. VOCs were collected to evacuated canisters and analyzed by Gas Chromatography -
Mass Spectrophotometer (GC-MS) in accordance with US-EPA TO15. Measured data from January 2013 to December 2019
were used in this study. The results indicate that the top five species of VOCs contributing to SOAP were toluene (66-54%), m-
,p-xylene (11-7%), ethylbenzene (9-8%), benzene (12-5%), o-xylene (5-4%) and styrene (9-4%), in rank order. These VOCs
accounted for more than 90 % of total SOAP. Positive Matrix Factorization (PMF) was then used to identify the potential
emission sources of these compounds. The results clearly indicated a high contribution from mobile sources at roadside
monitoring stations. As for the suburban area, most of the total VOC concentrations were from mobile source emissions,
chemical use in the households, and open burning. The results of this study highlight the necessity to control these emission
groups to reduce the formation potentiality of secondary organic aerosols and PM2.5 pollution. |
| first_indexed | 2024-12-12T05:02:24Z |
| format | Article |
| id | doaj.art-d52ec485a5d6418091b96709cac2952c |
| institution | Directory Open Access Journal |
| issn | 0125-3395 |
| language | English |
| last_indexed | 2024-12-12T05:02:24Z |
| publishDate | 2022-02-01 |
| publisher | Prince of Songkla University |
| record_format | Article |
| series | Songklanakarin Journal of Science and Technology (SJST) |
| spelling | doaj.art-d52ec485a5d6418091b96709cac2952c2022-12-22T00:37:12ZengPrince of Songkla UniversitySongklanakarin Journal of Science and Technology (SJST)0125-33952022-02-0144119120010.14456/sjst-psu.2022.28Formation potentiality and source apportionment analysis of secondary organic aerosol in urban and suburban area, ThailandLalidaporn Punya0Sarawut Thepanondh1Suphaphat Kwonpongsagoon2Wanna Laowagul3Nuttakit SukjitPattaranan Hanma4Department of Sanitary Engineering, Faculty of Public Health, Mahidol University, Ratchathewi, Bangkok, 10400 ThailandDepartment of Sanitary Engineering, Faculty of Public Health, Mahidol University, Ratchathewi, Bangkok, 10400 ThailandDepartment of Sanitary Engineering, Faculty of Public Health, Mahidol University, Ratchathewi, Bangkok, 10400 ThailandEnvironmental Research and Training Center, Department of Environmental Quality Promotion, Ministry of Natural Resources and Environment, Khlong Luang, Pathum Thani, 12120 ThailandDepartment of Sanitary Engineering, Faculty of Public Health, Mahidol University, Ratchathewi, Bangkok, 10400 ThailandAmbient volatile organic compounds (VOCs) concentrations measured in Bangkok and its suburb in Thailand were estimated for their secondary organic aerosol formation potential (SOAP) to elucidate the major compounds contributing to the formation of secondary fine particulates. VOCs were collected to evacuated canisters and analyzed by Gas Chromatography - Mass Spectrophotometer (GC-MS) in accordance with US-EPA TO15. Measured data from January 2013 to December 2019 were used in this study. The results indicate that the top five species of VOCs contributing to SOAP were toluene (66-54%), m- ,p-xylene (11-7%), ethylbenzene (9-8%), benzene (12-5%), o-xylene (5-4%) and styrene (9-4%), in rank order. These VOCs accounted for more than 90 % of total SOAP. Positive Matrix Factorization (PMF) was then used to identify the potential emission sources of these compounds. The results clearly indicated a high contribution from mobile sources at roadside monitoring stations. As for the suburban area, most of the total VOC concentrations were from mobile source emissions, chemical use in the households, and open burning. The results of this study highlight the necessity to control these emission groups to reduce the formation potentiality of secondary organic aerosols and PM2.5 pollution.https://rdo.psu.ac.th/sjst/journal/44-1/28.pdfvolatile organic compoundsecondary organic aerosol formationpositive matrix factorizationreceptor oriented modelair pollution |
| spellingShingle | Lalidaporn Punya Sarawut Thepanondh Suphaphat Kwonpongsagoon Wanna Laowagul Nuttakit Sukjit Pattaranan Hanma Formation potentiality and source apportionment analysis of secondary organic aerosol in urban and suburban area, Thailand Songklanakarin Journal of Science and Technology (SJST) volatile organic compound secondary organic aerosol formation positive matrix factorization receptor oriented model air pollution |
| title | Formation potentiality and source apportionment analysis of secondary organic aerosol in urban and suburban area, Thailand |
| title_full | Formation potentiality and source apportionment analysis of secondary organic aerosol in urban and suburban area, Thailand |
| title_fullStr | Formation potentiality and source apportionment analysis of secondary organic aerosol in urban and suburban area, Thailand |
| title_full_unstemmed | Formation potentiality and source apportionment analysis of secondary organic aerosol in urban and suburban area, Thailand |
| title_short | Formation potentiality and source apportionment analysis of secondary organic aerosol in urban and suburban area, Thailand |
| title_sort | formation potentiality and source apportionment analysis of secondary organic aerosol in urban and suburban area thailand |
| topic | volatile organic compound secondary organic aerosol formation positive matrix factorization receptor oriented model air pollution |
| url | https://rdo.psu.ac.th/sjst/journal/44-1/28.pdf |
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