Ozone

The ozone is under attack, an odd condition in the Larry Nasser settlement, and more Scott Pruitt drama.

• By Rebecca Worby

Increases in toxic ozone and benzene gases as a result of fracking pose a threat to our air quality.

• By Gunnar W. Schade

Serious crimes are more likely to occur in neighborhoods downwind of air pollution, according to a new study.

• By Madeleine Thomas