Fig. 5From: Interactive effects of temperature, organic carbon, and pipe material on microbiota composition and Legionella pneumophila in hot water plumbing systemsNMDS plot illustrating the overall dissimilarities among hot water microbiota. Circles represent SWHs with copper (solid) or PEX (open) pipe incubated at varying temperatures (blue, 32 °C; cyan, 37 °C; green, 41 °C; brown, 45 °C; magenta, 49 °C; red, 53 °C) in comparison the control set maintained at 32 °C (triangles, Ctl32°C). Cross symbols represent influent water (after GAC filtration) at the time of 37 °C incubation. Labels of “7” above a symbol indicate 700 μg/L dosed AOC, while non-labeled conditions represent 0 and 30 μg/L dosed AOC. The trajectory lines (solid—copper; dashed—PEX) indicate the trend of microbiota changing with increasing temperaturesBack to article page