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Efficacy of chlorine on Legionella pneumophila in a model system at ambient and high temperatures. To maintain a residual of 4 to 6 mg/L (attained with 18 mL at 25 °C and 40 mL at 43 °C), treatment with m received multiple application of chlorine whereas those with an s received a single dose of chlorine. (Source: [83] with permission from American Society for Microbiology).
