Detroit-area public schools have tested positive for high levels of copper
At least 57 of more than 100 Detroit-area public schools have tested positive so far for high levels of copper, lead or both in drinking water. These metals are dangerous, especially for children, when consumed in certain quantities. In kids, they can lead to impaired cognition, hearing problems and delayed puberty. The school district turned off all drinking water in schools last month in “an abundance of caution,” but it still hasn’t found a good long-term fix. The city’s water department has said the schools’ aging plumbing systems are to blame, adding that the issues don’t extend to the rest of the city.