"SACRAMENTO, Calif. — Fourteen states and the District of Columbia announced Thursday that they are suing the Trump administration over what they say is a failure to enforce smog standards.

The U.S. Environmental Protection Agency has not designated any areas of the country as having unhealthy air, missing an Oct. 1 deadline, according to the lawsuit. Such areas must take steps to improve their air quality.

Poor air quality particularly affects the health of children, people with asthma and those who work outside, said California Attorney General Xavier Becerra, who led and announced the filing. The lawsuit says smog can cause or aggravate diseases including heart disease, bronchitis and emphysema."

Don Thompson reports for the Associated Press December 7, 2017. [2]