Driving Forces of Changes in Air Quality during the COVID-19 Lockdown Period in the Yangtze River Delta Region, China
Description
During the COVID-19 lockdown period (from January 23 to February 29, 2020), ambient PM(2.5) concentrations in the Yangtze River Delta (YRD) region were observed to be much lower, while the maximum daily 8 h average (MDA8) O(3) concentrations became
