Pittsburgh region's air pollution worsening, report says
19 Abril, 2018, 00:58 | Author: Enrique Watson
The report named "State of the Air 2018", released Wednesday, covers 2014-2016 data, the most recent data available, and found that eight of the 10 USA cities with the worst ozone pollution are in California.
But the association and other clean-air advocacy groups worry that under the Trump Administration - which has been loosening regulations on industry and has already repealed certain Obama-era waterway protections - the clean air movement may suffer setbacks.
"We still have a lot to do in this country to clean up air pollution", said Lyndsay Moseley Alexander, the director of the Association's Healthy Air Campaign.
Knoxville roughly is in the middle of the pack in the USA when it pollution levels.
Ozone, or "smog", is a gas molecule that develops when nitrogen oxides or volatile organic compounds react with heat and sunlight.
Knox and five other counties received "C" grades for the number of high ozone days; three counties got "A" grades and one, Shelby, got an "F".
Charlotte is the 41st most polluted city in the nation for ozone.
The cities with the highest levels of ozone year-round are all in California: Los Angeles-Long Beach; Bakersfield, Visalia-Porterville-Hanford; Fresno-Madera; Sacramento-Roseville; San Diego-Carlsbad, and Modesto-Merced, according to the report.
The six cleanest cities were also listed in the report: Bellingham, Wash.; Burlington, Vt.; Casper, Wyo.; Honolulu; Melbourne, Fla.; and Wilmington, N.C.
It ranked Boston as the 47th most polluted city in the nation for ozone, calling that level "significantly improved" from last year's ranking of 37th.
The same trends in reduction of daily and annual particle pollution could be seen.
Pittsburgh is the tenth worst region in the country for short-term particle pollution, according to a new report.
The latest edition of an annual study conducted by the American Lung Association has found that levels of ground-level ozone (commonly referred to as smog) have increased across the board in the Philadelphia metro area - which includes parts of northern DE and the Shore, too.
A survey conducted from 2013 to 2016 by the Department of Environment (DoE) of Bangladesh on the air quality in Dhaka detected that of the PM 2.5 in the capital city, 58 percent comes from traditional brick fields while road dust is liable for 15 percent and motor vehicles 10.4 percent.
The cleanest cities in this year's report, earning an A, are: Bellingham, Wash.; Burlington, Va., area; Casper, Wyoming; Honolulu; Melbourne area, Fla; and Wilmington, N.C. To qualify, they had no days of high levels of ozone or particulate matter, and were ranked among the 25 cities with the lowest year-round particle pollution levels.
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