Drinking water is teeming with microbial life – but some of it could benefit human health.
Lutgarde Raskin of the University of Michigan in Ann Arbor says that workers at water treatment facilities across the US try to destroy all of the bacteria in drinking water with infusions of chlorine and other disinfectants. Raskin and her team suggest that encouraging the growth of some bacteria in drinking water could actually improve the quality and safety of the product. . . .