Roadwork to disrupt on Alaskan Way Viaduct, I-90, I-405, I-5 and Highway 167 this weekend

DIANTHA PARKER

LeeAnne Walters, a resident who says her 4-year-old son has been found to have high lead levels in his blood, holds a water filter that shows signs of lead particles from her home in Flint, Mich., Oct. 6, 2015. â€œIâ€™m happy that the city is finally doing what they should have done a long time ago,â€ Walters said. Residents of Flint lauded a decision Thursday to switch the city to its old water source after water from the Flint River was linked to rising lead levels in the blood of some children. (Laura McDermott/The New York Times)

January 30, 2016 at 5:57 pm

Flint water crisis: A look at lead exposure and its irreversible damage

A closer look at lead and lead poisoning.

Nation & World