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Most Polluted Cities in US Led by California

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The greater Los‚ÄČAngeles area has the worst ozone problem in the nation but the number of unhealthful days is on a declining trend with 2015 the best year so far

"Our families, our kids continue to breathe dirty air which causes public health issues, such as asthma, respiratory issues, and cardiac", Lugo said.

Kevin Stewart with the American Lung Association said it shows the effectiveness of the Clean Air act.

The report, released Wednesday, found that six of the 10 cities with the worst short-term air pollution in the USA are in California. According to the report, the city had 3.7 fewer high particle pollution days than a year ago, and decreased its annual pollution levels by 2.5 micrograms per cubic meter. In last year's report, both Kent and Sussex County received an "F" for ozone and an "A" for particle pollution.

According to the report, only six metro areas recorded zero days when pollution reached unhealthy levels, which are: Burlington, Vt.; Honolulu; Wilmington, N.C.; Fort Myers / Naples, Fla.; Melbourne, Fla., and Elmira, N.Y.

Bakersfield topped the national list for the number of unhealthy days for short-term particle pollution and came in second for unhealthy days for ozone pollution and year-round particle pollution levels.

The American Lung Association says almost four in 10 Americans lived in counties with unhealthy levels of either ozone or particle pollution between 2013 and 2015.

"The 2017 "State of the Air" report finds unhealthful levels of ozone decreased, which is being credited to the Clean Air Act's success at cleaning up major sources of the emissions that create ozone, especially coal-fired power plants and vehicles".

Air quality in our region has improved in the past decade, but climate change will make meeting future standards more hard around the country, Stewart said.

San Joaquin County has the highest level of year-round particle pollution levels in the region.

Seilback says the region is also upwind from industrial pollutants from the Midwest.

The ALA defined the unhealthy levels as "code orange" air quality days under the Environmental Protection Agency's benchmarks, and passing grades for the annual particulate levels. It is harmful to children, seniors and those with asthma and other lung diseases. Harvell Bowers highlighted the Regional Greenhouse Gas Initiative, of which Northeast and some Mid-Atlantic states are a part.

"The reports keep showing that the Clean Air Act is working and we're doing what we need to do".

But healthy air protections are under attack, and must be defended to save lives here and across the country.

"We believe that over the last few years we've seen this uptick in ozone levels due to climate change impacts", she said. President Donald Trump has proposed cuts to federal climate science funding and has deregulated industries that are a major source of unsafe emissions.

Air quality in the Lehigh Valley is improving, the American Lung Associations says in a new report. Wayne County, home to Detroit, earned a "D". "That will certainly result in lower levels of particle pollution, but we know that these extreme events are becoming the new normal".

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