Nghia Thi Thu Nguyen; Tran Thi Ngan; Wong, Chun Yee - 2024
Against the backdrop of the COVID-19 pandemic, most countries implemented a partial or full lockdown as a preventive … measure. Although lockdown caused an economic contraction, it unexpectedly improved the environment, especially air pollution …. This paper quantifies the impact of the lockdown on air quality by utilizing the air quality data and the lockdown periods …