DNN model reveals sharp decline in PM_2.5 concentration in the Yangtze River Delta during COVID-19 lockdown and lift lockdown

Sombor Borjigena School of Geography, Nanjing Normal University, Nanjing, ChinaView further author information

Fengji Zhanga School of Geography, Nanjing Normal University, Nanjing, ChinaView further author information

Yong Zhaa School of Geography, Nanjing Normal University, Nanjing, ChinaView further author information

Min Shaob School of Environment, Nanjing Normal University, Nanjing, ChinaCorrespondence[email protected]

SuYang Wangc Shanghai Rural Commercial Bank, Shanghai, ChinaView further author information

Qing Mud Department of Health and Environmental Sciences, Xi’an Jiaotong-Liverpool University, Suzhou, ChinaView further author information

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