Fig. 1From: Interactive effects of temperature, organic carbon, and pipe material on microbiota composition and Legionella pneumophila in hot water plumbing systemsEffect of temperature and pipe material on gene copy numbers of total bacteria (a), L. pneumophila (b), V. vermiformis (c), and Acanthamoeba (d) in SWHs dosed with 700 μg/L AOC in the influent. All microbial numbers are log10-transformed gene copies/mL. SWHs with copper (circle) or PEX (triangle) pipe section were incubated constantly at 32 °C (black) or at increasing temperatures from 32 to 53 °C (red for copper, green for PEX) from day 1 to day 316. Error bars are standard deviations of triplicate SWHsBack to article page