Source apportionment of PM2.5 at the coastal area in Korea
| Autor: | Kyung-Duk Zoh, Soo-Jin Ban, Seung-Muk Yi, Jongbae Heo, Jong-Kyu Choi |
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| Rok vydání: | 2013 |
| Předmět: |
Environmental Engineering
food.ingredient Contribution function Sea salt Air pollution Particulates medicine.disease_cause Pollution chemistry.chemical_compound food chemistry Nitrate Environmental chemistry Principal component analysis medicine Environmental Chemistry Environmental science Sulfate Waste Management and Disposal Chemical composition |
| Zdroj: | Science of The Total Environment. 447:370-380 |
| ISSN: | 0048-9697 |
| Popis: | In this study, we analyzed the chemical composition of fine particulate matter 2.5 μm or less (PM) collected at Incheon, the coastal area in Seoul, Korea every third day from June 2009 to May 2010. Based on the analyzed chemical species in the PM samples, the sources of PM were identified using a positive matrix factorization (PMF). Nine sources of PM were determined from PMF analysis. The major sources of PM were secondary nitrate (25.4%), secondary sulfate (19.0%), motor vehicle 1 (14.8%) with a lesser contribution from industry (8.5%), motor vehicle 2 (8.2%), biomass burning (6.1%), soil (6.1%), combustion and copper production emissions (6.1%), and sea salt (5.9%). From a paired t-test, it was found that yellow sand samples were characterized as having higher contribution from soil sources (p |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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