Ambient particulate matter in a central urban area of Seoul, Korea.
作者： Kowsalya Vellingiri , Ki-Hyun Kim , Chang-Jin Ma , Chang-Hee Kang , Jin-Hong Lee
DOI: 10.1016/J.CHEMOSPHERE.2014.08.049
关键词:
摘要: The concentrations of PM2.5 and PM10 were monitored at a central urban area Yongsan (YS), Seoul, Korea during 2013. daily average both fractions, 26.6±12.6 45.0±20.4 μg m(-3), respectively. observed concentration slightly exceeded the annual standard value (25 m(-3)) set by Korean Ministry Environment (KMOE), while that was lower than its guideline (50 m(-3)). Comparison monthly mean values (μg PM fractions showed maximum in January (PM2.5: 36.9 PM10: 59.7) minimum September (PM10: 28.1) October 14.9). existence strong correlations between some gaseous pollutants (e.g., CO, SO2, NOx) indicated commonality contributing source processes, such as traffic industrial emissions. results back-trajectory (BT) analysis also suggests pollution study is likely to have been affected many sources Asian dust, volcanic emissions, activities surrounding countries (China, Russia, Japan).
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