TRAVERSE CITY, Mich. (AP) — The U.S. Environmental Protection Agency is proposing guidelines to help state and local officials detect dangerous levels of algal toxins in drinking water.

EPA officials Wednesday released suggested thresholds that should prompt actions such as issuing do-not-drink warnings or taking steps to quickly reduce levels of two types of algal toxins. One set of trigger points was recommended for young children and another for the rest of the population.

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