Bacterial community in rainwater storage tanks

This study aims to explain the effect of the color of plastic rainwater storage tank on microbiological water quality and biofilm formation. Five painted storage tanks (white, red, yellow, blue, and black) filled with rainwater were illuminated by a blue compact fluorescent lamp for 12h every day for six weeks. The bacterial community analyses based on 16S rRNA gene sequencing revealed that the stored rainwater was not harmful to human health, Moreover, red and blue light have been found to induce a reduction to the diversity of the bacterial community.