Source Quantification of PM10 and PM2.5 Using Iron Tracer Mass Balance in a Seoul Subway Station, South Korea
Abstract In this study, we simultaneously measured the PM10 and PM2.5 mass concentrations and their heavy metal content for three days at a subway station in Seoul to investigate the airborne PM flows. The average concentrations were 59 µg m−3, 37 µg m−3, 111 µg m−3, and 369 µg m−3 for the PM10 and...
Saved in:
| Main Authors: | , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Springer
2021-03-01
|
| Series: | Aerosol and Air Quality Research |
| Subjects: | |
| Online Access: | https://doi.org/10.4209/aaqr.200573 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1823862892715311104 |
|---|---|
| author | Jihwan Son Kwangrae Kim Seungmi Kwon Seung-Myung Park Kwangtae Ha Yunmi Shin Mijin Ahn Seogju Cho Jinho Shin Yongseung Shin Gangwoong Lee |
| author_facet | Jihwan Son Kwangrae Kim Seungmi Kwon Seung-Myung Park Kwangtae Ha Yunmi Shin Mijin Ahn Seogju Cho Jinho Shin Yongseung Shin Gangwoong Lee |
| author_sort | Jihwan Son |
| collection | DOAJ |
| description | Abstract In this study, we simultaneously measured the PM10 and PM2.5 mass concentrations and their heavy metal content for three days at a subway station in Seoul to investigate the airborne PM flows. The average concentrations were 59 µg m−3, 37 µg m−3, 111 µg m−3, and 369 µg m−3 for the PM10 and 43 µg m−3, 28 µg m−3, 58 µg m−3, and 132 µg m−3 for the PM2.5 at the outdoor air inlet, in the concourse, on the platform, and in the tunnel, respectively. We also found strong correlations between the temporal variations at adjacent sampling locations for both fractions, although they were higher for the PM2.5. Additionally, of the airborne trace metals detected at the sampling locations inside the station (the concourse, platform, and tunnel), iron (Fe) displayed the highest concentration and was thus selected as a tracer of PM. Applying a simple mass balance model to the Fe concentrations and ventilation rates revealed that 78% of the PM10 and 62% of the PM2.5 on the platform emanated from the tunnel, whereas 84% of the PM10 and 87% of the PM2.5 in the concourse originated outdoors (and arrived in the filtered air). These results further confirm that reducing PM emission from the tunnel is the most effective strategy for improving air quality on the platform and achieving compliance with the national guideline. |
| format | Article |
| id | doaj-art-677768eb62a347ac9fdcde0c01f3c848 |
| institution | Kabale University |
| issn | 1680-8584 2071-1409 |
| language | English |
| publishDate | 2021-03-01 |
| publisher | Springer |
| record_format | Article |
| series | Aerosol and Air Quality Research |
| spelling | doaj-art-677768eb62a347ac9fdcde0c01f3c8482025-02-09T12:20:24ZengSpringerAerosol and Air Quality Research1680-85842071-14092021-03-0121711210.4209/aaqr.200573Source Quantification of PM10 and PM2.5 Using Iron Tracer Mass Balance in a Seoul Subway Station, South KoreaJihwan Son0Kwangrae Kim1Seungmi Kwon2Seung-Myung Park3Kwangtae Ha4Yunmi Shin5Mijin Ahn6Seogju Cho7Jinho Shin8Yongseung Shin9Gangwoong Lee10Seoul Metropolitan Government Research Institute of Public Health and EnvironmentSeoul Metropolitan Government Research Institute of Public Health and EnvironmentSeoul Metropolitan Government Research Institute of Public Health and EnvironmentDepartment of Environmental Science, Hankuk University of Foreign StudiesSeoul Metropolitan Government Research Institute of Public Health and EnvironmentSeoul Metropolitan Government Research Institute of Public Health and EnvironmentSeoul Metropolitan Government Research Institute of Public Health and EnvironmentSeoul Metropolitan Government Research Institute of Public Health and EnvironmentSeoul Metropolitan Government Research Institute of Public Health and EnvironmentSeoul Metropolitan Government Research Institute of Public Health and EnvironmentDepartment of Environmental Science, Hankuk University of Foreign StudiesAbstract In this study, we simultaneously measured the PM10 and PM2.5 mass concentrations and their heavy metal content for three days at a subway station in Seoul to investigate the airborne PM flows. The average concentrations were 59 µg m−3, 37 µg m−3, 111 µg m−3, and 369 µg m−3 for the PM10 and 43 µg m−3, 28 µg m−3, 58 µg m−3, and 132 µg m−3 for the PM2.5 at the outdoor air inlet, in the concourse, on the platform, and in the tunnel, respectively. We also found strong correlations between the temporal variations at adjacent sampling locations for both fractions, although they were higher for the PM2.5. Additionally, of the airborne trace metals detected at the sampling locations inside the station (the concourse, platform, and tunnel), iron (Fe) displayed the highest concentration and was thus selected as a tracer of PM. Applying a simple mass balance model to the Fe concentrations and ventilation rates revealed that 78% of the PM10 and 62% of the PM2.5 on the platform emanated from the tunnel, whereas 84% of the PM10 and 87% of the PM2.5 in the concourse originated outdoors (and arrived in the filtered air). These results further confirm that reducing PM emission from the tunnel is the most effective strategy for improving air quality on the platform and achieving compliance with the national guideline.https://doi.org/10.4209/aaqr.200573SubwayMass balance modelAir qualityParticle matterHeavy metal |
| spellingShingle | Jihwan Son Kwangrae Kim Seungmi Kwon Seung-Myung Park Kwangtae Ha Yunmi Shin Mijin Ahn Seogju Cho Jinho Shin Yongseung Shin Gangwoong Lee Source Quantification of PM10 and PM2.5 Using Iron Tracer Mass Balance in a Seoul Subway Station, South Korea Aerosol and Air Quality Research Subway Mass balance model Air quality Particle matter Heavy metal |
| title | Source Quantification of PM10 and PM2.5 Using Iron Tracer Mass Balance in a Seoul Subway Station, South Korea |
| title_full | Source Quantification of PM10 and PM2.5 Using Iron Tracer Mass Balance in a Seoul Subway Station, South Korea |
| title_fullStr | Source Quantification of PM10 and PM2.5 Using Iron Tracer Mass Balance in a Seoul Subway Station, South Korea |
| title_full_unstemmed | Source Quantification of PM10 and PM2.5 Using Iron Tracer Mass Balance in a Seoul Subway Station, South Korea |
| title_short | Source Quantification of PM10 and PM2.5 Using Iron Tracer Mass Balance in a Seoul Subway Station, South Korea |
| title_sort | source quantification of pm10 and pm2 5 using iron tracer mass balance in a seoul subway station south korea |
| topic | Subway Mass balance model Air quality Particle matter Heavy metal |
| url | https://doi.org/10.4209/aaqr.200573 |
| work_keys_str_mv | AT jihwanson sourcequantificationofpm10andpm25usingirontracermassbalanceinaseoulsubwaystationsouthkorea AT kwangraekim sourcequantificationofpm10andpm25usingirontracermassbalanceinaseoulsubwaystationsouthkorea AT seungmikwon sourcequantificationofpm10andpm25usingirontracermassbalanceinaseoulsubwaystationsouthkorea AT seungmyungpark sourcequantificationofpm10andpm25usingirontracermassbalanceinaseoulsubwaystationsouthkorea AT kwangtaeha sourcequantificationofpm10andpm25usingirontracermassbalanceinaseoulsubwaystationsouthkorea AT yunmishin sourcequantificationofpm10andpm25usingirontracermassbalanceinaseoulsubwaystationsouthkorea AT mijinahn sourcequantificationofpm10andpm25usingirontracermassbalanceinaseoulsubwaystationsouthkorea AT seogjucho sourcequantificationofpm10andpm25usingirontracermassbalanceinaseoulsubwaystationsouthkorea AT jinhoshin sourcequantificationofpm10andpm25usingirontracermassbalanceinaseoulsubwaystationsouthkorea AT yongseungshin sourcequantificationofpm10andpm25usingirontracermassbalanceinaseoulsubwaystationsouthkorea AT gangwoonglee sourcequantificationofpm10andpm25usingirontracermassbalanceinaseoulsubwaystationsouthkorea |