1 “... of this Research Topic is to highlight recent advances in the sources, chemistry and function of these microbial...”

2 Subjects: “...European Spallation Source...”

3 Subjects: “...point sources...”

4 Subjects: “...crevice chemistry...”

5 Subjects: “...optical imaging and light sources...”

6 Subjects: “...advanced oxidation processes...”

7 Subjects: “...water chemistry...”

8 Subjects: “...flow chemistry...”

9 Subjects: “...deNOx chemistry...”

10 “... chemistry; biological agents indoors; source apportionment; exposure assessment; health effects of indoor...”