AUTHOR=Schleicher Nina J. , Ram Kirpa , Norra Stefan , Schrader Stefanie TITLE=Editorial: Fine particulate matter pathways—Monitoring and modelling JOURNAL=Frontiers in Environmental Science VOLUME=11 YEAR=2023 URL=https://www.frontiersin.org/journals/environmental-science/articles/10.3389/fenvs.2023.1187784 DOI=10.3389/fenvs.2023.1187784 ISSN=2296-665X