AUTHOR=Ma Huilian , Li Yusong , Shen Chongyang , Chrysikopoulos Constantinos V. , Kim Hyunjung TITLE=Editorial: Advances in Pollutant Transport in Critical Zone Environments JOURNAL=Frontiers in Water VOLUME=3 YEAR=2021 URL=https://www.frontiersin.org/journals/water/articles/10.3389/frwa.2021.693102 DOI=10.3389/frwa.2021.693102 ISSN=2624-9375