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The Interannual Variation of Transboundary Contributions from Chinese Emissions of PM2.5 to South Korea.
- Source :
- Advances in Atmospheric Sciences; May2021, Vol. 38 Issue 5, p701-706, 6p
- Publication Year :
- 2021
-
Abstract
- In recent years, several studies pointed out that anthropogenic emission sources in China which significantly contribute to the PM<subscript>2.5</subscript> mass burden was an important cause of particulate pollution in South Korea. However, most studies generally focused upon a single pollution event. It is rare to see comprehensive research that captures those features prone to interannual variations concerning the transboundary pollutant contribution in South Korea using a unified method. In this paper, we establish the emission inventories covering East Asia in 2010, 2015, and 2017, and then conduct the source apportionment by applying a coupled regional air quality model called the Integrated Source Apportionment Module (ISAM). Comparison of simulated and observed PM<subscript>2.5</subscript> mass concentration at 165 CNEMC (China National Environmental Monitoring Center) sites suggests that the PM<subscript>2.5</subscript> concentrations are well represented by the modeling system. The model is used to quantitatively investigate the contribution from emission sources in China to PM<subscript>2.5</subscript> concentrations over South Korea and those features found to be prone to interannual variations are then discussed. The results show that the average annual contribution of PM<subscript>2.5</subscript> has dropped significantly from 28.0% in 2010 to 15.7% in 2017, which strongly suggests that China has achieved remarkable results in the treatment of atmospheric particulates. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02561530
- Volume :
- 38
- Issue :
- 5
- Database :
- Complementary Index
- Journal :
- Advances in Atmospheric Sciences
- Publication Type :
- Academic Journal
- Accession number :
- 149713717
- Full Text :
- https://doi.org/10.1007/s00376-021-1003-4