Micropollutants

Lotzman Katzman / Flickr

High rates of asthma in Allegheny County are keeping kids out of schools and impacting learning, according to research by a local pediatrician. Pittsburgh has one of the highest rates of air pollution in the country, one of the strongest factors for childhood asthma.

The study by Deborah Gentile reveals more than 22 percent of children in some Pittsburgh schools have asthma, much higher than the national average of just more than 10 percent. Gentile says this high rate of childhood asthma is alarming.

Spencer Neuharth via USFWS Mountain-Prairie / Flickr

Lead isn’t the only harmful substance that can make its way into drinking water.

Chemicals from pharmaceuticals, pesticides and personal care products can all end up in the water supply.