Table 3.

Estimated emission reductions of air pollutants (%) in major regions of China from 24 January to 17 February in 2020 due to the COVID-19 control.

Region	NOx	SO2	CO	PM2.5	Region	NOx	SO2	CO	PM2.5
Beijing	−29.6	−11.8	−13.3	−5.0	Liaoning	−15.7	−10.9	−5.5	−4.4
Tianjin	−281	−13.1	−16.8	−6.2	Fujian	−36.5	−15.3	−21.7	−8.2
Hebei	−31.5	−9.0	−10.5	−5.7	Jiangxi	−42.5	−11.0	−14.2	−8.0
Shanxi	−21.3	−4.9	−6.5	−6.6	Guangdong	−41.0	−15.6	−31.6	−12.2
Inner Mongolia	−13.6	−4.5	−1.8	−3.0	Guangxi	−39.2	−14.4	−15.4	−8.1
Shandong	−33.3	−9.6	−13.4	−8.9	Hainan	−29.7	−14.6	−15.8	−4.3
Henan	−49.8	−11.0	−15.6	−9.8	Chongqing	−36.8	−11.8	−8.7	−3.6
Shanghai	−26.5	−12.9	−24.4	−15.7	Sichuan	−33.4	−11.8	−9.5	−1.9
Jiangsu	−29.1	−14.9	−15.8	−7.7	Guizhou	−28.8	−0.4	−0.6	−0.9
Zhejiang	−31.8	−14.6	−29.8	−12.4	Yunan	−40.9	−8.9	−15.4	−6.3
Anhui	−40.4	−11.6	−5.9	−3.0	Shaanxi	−28.1	−4.6	−8.8	−4.2
Hubei	−46.1	−5.7	−9.2	−4.7	Gansu	−30.0	−7.4	−5.5	−1.7
Hunan	−39.4	−5.2	−6.8	−3.0	Qinghai	−30.1	−8.7	−9.9	−5.2
Heilongjiang	−13.1	−2.9	−1.6	−1.4	Ningxia	−25.6	−10.4	−16.8	−8.3
Jilin	−20.2	−8.2	−3.8	−1.7	Xinjiang	−22.7	−11.1	−17.0	−10.1