scholarly journals Substantial health benefits of strengthening guidelines on indoor fine particulate matter in China

2022 ◽  
Vol 160 ◽  
pp. 107082
Author(s):  
Yang Xie ◽  
Ying Wang ◽  
Yichi Zhang ◽  
Wenhong Fan ◽  
Zhaomin Dong ◽  
...  
2014 ◽  
Vol 48 (23) ◽  
pp. 13573-13582 ◽  
Author(s):  
Iyad Kheirbek ◽  
Jay Haney ◽  
Sharon Douglas ◽  
Kazuhiko Ito ◽  
Steven Caputo ◽  
...  

Author(s):  
Changwoo Han ◽  
Yun-Chul Hong

Both domestic emissions and transported pollutants from neighboring countries affect the ambient fine particulate matter (PM2.5) concentration of Seoul, Korea. Diverse measures to control the coronavirus disease 2019 (COVID-19), such as social distancing and increased telecommuting in Korea and the stringent lockdown measures of China, may reduce domestic emissions and levels of transported pollutants, respectively. In addition, wearing a particulate-filtering respirator may have decreased the absolute PM2.5 exposure level for individuals. Therefore, this study estimated the acute health benefits of PM2.5 reduction and changes in public behavior during the COVID-19 crisis in Seoul, Korea. To calculate the mortality burden attributable to PM2.5, we obtained residents’ registration data, mortality data, and air pollution monitoring data for Seoul from publicly available databases. Relative risks were derived from previous time-series studies. We used the attributable fraction to estimate the number of excessive deaths attributable to acute PM2.5 exposure during January to April, yearly, from 2016 to 2020, and the number of mortalities avoided from PM2.5 reduction and respirator use observed in 2020. The average PM2.5 concentration from January to April in 2020 (25.6 μg/m3) was the lowest in the last 5 years. At least −4.1 μg/m3 (95% CI: −7.2, −0.9) change in ambient PM2.5 in Seoul was observed in 2020 compared to the previous 4 years. Overall, 37.6 (95% CI: 32.6, 42.5) non-accidental; 7.0 (95% CI: 5.7, 8.4) cardiovascular; and 4.7 (95% CI: 3.4, 6.1) respiratory mortalities were avoided due to PM2.5 reduction in 2020. By considering the effects of particulate respirator, decreases of 102.5 (95% CI: 89.0, 115.9) non-accidental; 19.1 (95% CI: 15.6, 22.9) cardiovascular; and 12.9 (95% CI: 9.2, 16.5) respiratory mortalities were estimated. We estimated that 37 lives were saved due to the PM2.5 reduction related to COVID-19 in Seoul, Korea. The health benefit may be greater due to the popular use of particulate-filtering respirators during the COVID-19 crisis. Future studies with daily mortality data are needed to verify our study estimates.


2021 ◽  
Vol 55 (18) ◽  
pp. 12223-12232
Author(s):  
Shupeng Zhu ◽  
Michael Mac Kinnon ◽  
Andre Paradise ◽  
Donald Dabdub ◽  
G. Scott Samuelsen

2020 ◽  
Author(s):  
Yazhen Gong ◽  
Shanjun Li ◽  
Nicholas Sanders ◽  
Guang Shi

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