Smoggy Houston makes the list of America's Top 10 Toxic Cities
Forbes magazine released its list of the nation's top 10 most toxic cities, and unfortunately, Houston ranks number seven.
The ranking considers several factors, including the number of Superfund sites — meaning out-of-use areas that contain hazardous waste — in cities with populations of 500,000 or more. Philadelphia, the No. 1 most toxic city in the nation, contains 50 such sites.
Houston nabbed a top 10 ranking, which Forbes speculates is due to our density of oil refineries, petrochemical plants and biomedical industry. Houston had the second-highest toxic release amount of all the cities on the list (Salt Lake City had the worst).
Californian metro areas claimed four of the top 10 spots, with the full top 10 ranking from highest to lowest toxicity as follows: Philadelphia, Bakersfield (Calif.), Fresno (Calif.), New York, Baton Rouge (La.), Los Angeles, Houston; St. Louis, Salt Lake City and Riverside-San Bernardino, Calif.
Tell us: Does the ranking surprise you?