Reactive oxygen species (ROS) activity of ambient fine particles (PM2.5 ) measured in Seoul, Korea

Environment International
Jieun ParkJong-Bae Heo

Abstract

Substantial increase in level of particulate matter has raised concerns in South Korea recently. Ambient particulate matter is classified as Group I carcinogen (IARC, 2013) and multiple epidemiological studies has demonstrated adverse health effects due to exposure of particulate matter. Fine particulate matter (PM2.5) which has a diameter <2.5 μm is likely to penetrate deeply into lung and is known to be eliciting adverse health effects. A number of epidemiological studies have been conducted on adverse health effects of PM-related diseases and mortality rate, yet particulate matter (PM)-induced reactive oxygen species (ROS) activity at the cellular level has not been actively studied in Korea. This study assessed PM-induced oxidative potential by exposure of collected ambient PM2.5 samples to the rat alveolar macrophage cell line. The characteristics of PM2.5 in Korea were further characterized by linking chemical constituents and contributing sources to ROS. PM2.5 mass concentration during the cold season was relatively higher than mass concentration during the warm season and chemical constituents except for Secondary Organic Carbon (SOC) and SO42- which both showed similar trends in both the cold and cold seasons. The conc...Continue Reading

Citations

Sep 5, 2019·International Journal of Molecular Sciences·Chiang-Wen LeeChian-Hui Lai
Jun 27, 2020·Reviews on Environmental Health·Huibin GuoSijing Huang
Feb 10, 2021·Environmental Pollution·Xiao-Cui ChenKin-Fai Ho
Feb 28, 2021·Journal of Environmental Sciences (China)·Mushtaq AhmadYuepeng Zhang
Jun 21, 2021·Environmental Science and Pollution Research International·Jieun ParkChul-Gyu Yoo
Dec 1, 2018·Environmental Science & Technology·Xiaoying LiMei Zheng

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