Influence of bacterial community to the water quality performance of urban stormwater nature-based solutions.

In this study, seven different stormwater nature-based solution (NBS) was investigated to identify the relationship of bacterial community to the pollutant removal performance of stormwater NBS. Based on this study, Proteobacteria was found to be the most dominant bacteria for all stormwater NBS and IS followed by Acidobacteria and Actinobacteria. Acidobacteria , Actinobacteria , Chloroflexi , Gemmatimonadetes , WS3 , and AF234118_p were found to have high positive correlation to most pollutant removal efficiency of different stormwater NBS (r-value: 0.62 to 0.68). Using Proteobacteria and Acidobacteria count in NBS, equations predicting pollutant removal performance were developed. The equations developed in this study is useful in minimizing the cost for stormevent monitoring to identify the pollutant removal performance of NBS. • Generally, stormwater collected from roads have higher pollutant concentration compared to parking lot, combined road and parking lot and roof deck. • Proteobacteria was found to be the most dominant microorganism for all stormwater NBS and original soil. • Using Proteobacteria and Acidobacteria count in stormwater NBS, pollutant removal performance may be predicted. [ABSTRACT FROM AUTHOR]