AUTHOR=Liu Fudong , Weng Xiaole , Dai Qiguang TITLE=Editorial: Secondary Pollution in the Environmental Pollution Control Process: Production, Environmental Risks and Reduction JOURNAL=Frontiers in Environmental Chemistry VOLUME=3 YEAR=2022 URL=https://www.frontiersin.org/journals/environmental-chemistry/articles/10.3389/fenvc.2022.874342 DOI=10.3389/fenvc.2022.874342 ISSN=2673-4486