COVID-19 lockdown improved river water quality in China Liu, Dong ; Yang, Hong ; Thompson, Julian R. ; Li, Junli ; Loiselle, Steven ; Duan, Hongtao Abstract Publication: Science of the Total Environment Pub Date: January 2022 DOI: 10.1016/j.scitotenv.2021.149585 Bibcode: 2022ScTEn.80249585L