News
What’s happening on campus and in D.C.
Region sees air-quality improvements
The number of bad air days caused by ground-level ozone in the Washington area declined by more than 40 percent since 2003, according to a recent estimate.
What’s happening on campus and in D.C.
The number of bad air days caused by ground-level ozone in the Washington area declined by more than 40 percent since 2003, according to a recent estimate.