Author: Guojun He; Yuhang Pan; Takanao Tanaka
Title: COVID-19, City Lockdown, and Air Pollution: Evidence from China Document date: 2020_4_1
ID: if7av1x8_31
Snippet: The results are summarized in Table 2 . Recall that the counter-COVID-19 measures reduced PM2.5 in the control cities by 8.40 µg/m 3 , and the city lockdown further decreased PM2.5 in the treated cities by 13.9 µg/m 3 (total 22.3 µg/m 3 ). Two recent quasi-experimental studies in China show that a 10 µg/m 3 increase in PM2.5 would lead to a 2.2%~3.25% increase in weekly/monthly mortality (He et al., 2020; Fan et al., 2020) . 5 That implies, t.....
Document: The results are summarized in Table 2 . Recall that the counter-COVID-19 measures reduced PM2.5 in the control cities by 8.40 µg/m 3 , and the city lockdown further decreased PM2.5 in the treated cities by 13.9 µg/m 3 (total 22.3 µg/m 3 ). Two recent quasi-experimental studies in China show that a 10 µg/m 3 increase in PM2.5 would lead to a 2.2%~3.25% increase in weekly/monthly mortality (He et al., 2020; Fan et al., 2020) . 5 That implies, the total number of averted premature deaths caused by the improvement in air quality would be around 24,000 to 36,000 on a monthly basis. These numbers are significantly larger than the total number of deaths caused by COVID-19 in China (less than 3,300 as of March 28, 2020) (WHO, 2020) and illustrate the enormous social costs associated with air pollution.
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