Singlet oxygen production abilities of oxidated aromatic compounds in natural water.

Singlet oxygen (O) is well known to be formed through energy transfer from excited state organic matters to O, playing an important role in the transformations of contaminants. However, the contribution of small oxidated aromatic compounds (OACs) to the production of O in surface water is unclear. In this study, 28 OACs were selected to investigate the correlations between their photochemical production abilities of O and molecular structures.