Hygroscopic Growth Factors of Sub-micrometer Atmospheric Aerosols at Four Selected Sites in Thailand
Abstract Hygroscopic growth factor (Gf) of aerosols is related to water loading on particles in sub-saturated conditions. It is an essential parameter for assessing the role of atmospheric particles in the radiative transfer and cloud formation process. Therefore, the temporal variation in Gf of siz...
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| Format: | Article |
| Language: | English |
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Springer
2023-03-01
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| Series: | Aerosol and Air Quality Research |
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| Online Access: | https://doi.org/10.4209/aaqr.220374 |
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| author | Jindarat Pariyothon Surat Bualert Parkpoom Choomanee Thitima Rungratanaubon Thunyapat Thongyen Narita Fakkaew Chayaporn Phuetfoo Jitlada Phupijit Wladyslaw W. Szymanski |
| author_facet | Jindarat Pariyothon Surat Bualert Parkpoom Choomanee Thitima Rungratanaubon Thunyapat Thongyen Narita Fakkaew Chayaporn Phuetfoo Jitlada Phupijit Wladyslaw W. Szymanski |
| author_sort | Jindarat Pariyothon |
| collection | DOAJ |
| description | Abstract Hygroscopic growth factor (Gf) of aerosols is related to water loading on particles in sub-saturated conditions. It is an essential parameter for assessing the role of atmospheric particles in the radiative transfer and cloud formation process. Therefore, the temporal variation in Gf of size-selected atmospheric particles from the Aitken mode (Dp ≤ 100 nm) and accumulation mode (Dp > 100 nm) was measured using a humidified tandem differential mobility analyser (H-TDMA) and the relationship between particle size and Gf for various locations and meteorological conditions was determined. The origin of ambient particles primarily defines their properties and governs their participation in atmospheric processes. Thus, the measurements were performed in locations with different land-use types: urban, rural, coastal-industrial, and landlocked industrial areas. The data showed site-dependent patterns of temporal and spatial changes in Gf. The results indicated that the number-weighted Gf averaged over the investigated particle size range (30–250 nm) was highest in rural areas (Gf = 1.27), followed by coastal-industrial (Gf = 1.19), urban (Gf = 1.11), and landlocked industrial areas (Gf = 1.06). Particles in the urban and landlocked industrial areas had relatively low Gf values, suggesting that they originated mainly from fossil fuel combustion, in contrast to particles at other sites which can be attributed to coastal proximity. |
| format | Article |
| id | doaj-art-554cf07d3b9d47bcbdf222fb972428eb |
| institution | Kabale University |
| issn | 1680-8584 2071-1409 |
| language | English |
| publishDate | 2023-03-01 |
| publisher | Springer |
| record_format | Article |
| series | Aerosol and Air Quality Research |
| spelling | doaj-art-554cf07d3b9d47bcbdf222fb972428eb2025-02-09T12:22:05ZengSpringerAerosol and Air Quality Research1680-85842071-14092023-03-0123611710.4209/aaqr.220374Hygroscopic Growth Factors of Sub-micrometer Atmospheric Aerosols at Four Selected Sites in ThailandJindarat Pariyothon0Surat Bualert1Parkpoom Choomanee2Thitima Rungratanaubon3Thunyapat Thongyen4Narita Fakkaew5Chayaporn Phuetfoo6Jitlada Phupijit7Wladyslaw W. Szymanski8Department of Social & Applied Science, College of Industrial Technology, King Mongkut’s University of Technology North BangkokDepartment of Environmental Science, Faculty of Environment, Kasetsart UniversityDepartment of Environmental Science, Faculty of Environment, Kasetsart UniversityDepartment of Environmental Science, Faculty of Environment, Kasetsart UniversityDepartment of Environmental Technology & Management, Faculty of Environment, Kasetsart UniversityDepartment of Environmental Health, Faculty of Public Health, Kasetsart UniversityDepartment of Environmental Science, Faculty of Environment, Kasetsart UniversityDepartment of Environmental Science, Faculty of Environment, Kasetsart UniversityDepartment of Environmental Science, Faculty of Environment, Kasetsart UniversityAbstract Hygroscopic growth factor (Gf) of aerosols is related to water loading on particles in sub-saturated conditions. It is an essential parameter for assessing the role of atmospheric particles in the radiative transfer and cloud formation process. Therefore, the temporal variation in Gf of size-selected atmospheric particles from the Aitken mode (Dp ≤ 100 nm) and accumulation mode (Dp > 100 nm) was measured using a humidified tandem differential mobility analyser (H-TDMA) and the relationship between particle size and Gf for various locations and meteorological conditions was determined. The origin of ambient particles primarily defines their properties and governs their participation in atmospheric processes. Thus, the measurements were performed in locations with different land-use types: urban, rural, coastal-industrial, and landlocked industrial areas. The data showed site-dependent patterns of temporal and spatial changes in Gf. The results indicated that the number-weighted Gf averaged over the investigated particle size range (30–250 nm) was highest in rural areas (Gf = 1.27), followed by coastal-industrial (Gf = 1.19), urban (Gf = 1.11), and landlocked industrial areas (Gf = 1.06). Particles in the urban and landlocked industrial areas had relatively low Gf values, suggesting that they originated mainly from fossil fuel combustion, in contrast to particles at other sites which can be attributed to coastal proximity.https://doi.org/10.4209/aaqr.220374AerosolsHygroscopicityParticle fractionsPrecipitable waterTopographical location |
| spellingShingle | Jindarat Pariyothon Surat Bualert Parkpoom Choomanee Thitima Rungratanaubon Thunyapat Thongyen Narita Fakkaew Chayaporn Phuetfoo Jitlada Phupijit Wladyslaw W. Szymanski Hygroscopic Growth Factors of Sub-micrometer Atmospheric Aerosols at Four Selected Sites in Thailand Aerosol and Air Quality Research Aerosols Hygroscopicity Particle fractions Precipitable water Topographical location |
| title | Hygroscopic Growth Factors of Sub-micrometer Atmospheric Aerosols at Four Selected Sites in Thailand |
| title_full | Hygroscopic Growth Factors of Sub-micrometer Atmospheric Aerosols at Four Selected Sites in Thailand |
| title_fullStr | Hygroscopic Growth Factors of Sub-micrometer Atmospheric Aerosols at Four Selected Sites in Thailand |
| title_full_unstemmed | Hygroscopic Growth Factors of Sub-micrometer Atmospheric Aerosols at Four Selected Sites in Thailand |
| title_short | Hygroscopic Growth Factors of Sub-micrometer Atmospheric Aerosols at Four Selected Sites in Thailand |
| title_sort | hygroscopic growth factors of sub micrometer atmospheric aerosols at four selected sites in thailand |
| topic | Aerosols Hygroscopicity Particle fractions Precipitable water Topographical location |
| url | https://doi.org/10.4209/aaqr.220374 |
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