Sulfur Dioxide Damages Lungs, and Scott Pruitt Is Letting More of It in Our Air - Mother Jones

Nearly a quarter of the nation's coal-fired power plants in 2017 lacked pollution controls limiting emissions of lung-damaging sulfur dioxide, even though some of their counterparts have been using the controls for almost 40 years. ....
https://www.motherjones.com/environment/2018/05/sulfur-dioxide-damages-lungs-and-scott-pruitt-is-letting-more-of-it-in-our-air/