News
Six of the ten U.S. cities with the worst air pollution are in Southern California
Watch CBS News
Six of the ten U.S. cities with the worst air pollution are in Southern California
Nicole Comstock reports from Ontario, which tops the list of the nation’s cities with the worst air pollution. It’s closely followed by five other Southern California cities, something that residents are far from surprised by, but still concerned.
Be the first to know
Get browser notifications for breaking news, live events, and exclusive reporting.