Two out of three very young children in Chicago were exposed to at least trace amounts of lead in their home tap water, a study found, highlighting the need for City Hall to speed up replacements of brain-damaging lead pipes. [Chicago Sun-Times]

A study by Johns Hopkins and Stanford researchers, published Monday in the medical journal JAMA Pediatrics, used artificial intelligence to estimate the extent of exposure of children across the city to water from home faucets containing lead.

In all, 129,000 children, 68% of those 5 or younger had lead in their home drinking water, the study found.

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