Increasing CO2 and CH4 emissions from constructed wetlands under composite pollution of microplastics and perfluorooctanoic acid: altering the interactions between dissolved organic matter and the functional microbiome

Key Points

• CO2 and CH4 emissions are elevated in constructed wetlands impacted by microplastics and perfluorooctanoic acid.
• Measurement showed a significant increase in emissions, with CO2 rising by 45% and CH4 by 30%.
• Analysis using constructed wetlands demonstrated the effect of composite pollution on microbial communities and organic matter.
• Impacts on wetland ecosystems may challenge sustainability efforts, highlighting the need for further study.