Phosphorus, Algae, and What You Drink

The Clean Water Act must be updated to safeguard Americans
Toledo’s water intake on Lake Erie on Aug. 4Photograph by Ty Wright/For The Washington Post via Getty Images

More than half a million people in the city and suburbs of Toledo, Ohio, got a break on Aug. 4: They were told it was safe to drink again from their taps. That was two days after they were warned their water posed a health risk because of toxins related to an algal bloom in Lake Erie, the source of the city’s water.

Isn’t it a little unnerving that one day you can’t use your tap water to brush your teeth or wash dishes, let alone drink, because officials say it might cause damage to your liver and nervous system, and then the next day the problem has disappeared?