Despite Air Quality Improvement, Ozone Levels Still Too High - WBOC-TV 16, Delmarvas News Leader, FOX 21 -

Despite Air Quality Improvement, Ozone Levels Still Too High

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WILMINGTON, Del. (AP) - Delaware's air quality has continued its steady improvement, but the state still gets a failing grade for having high levels of ozone on hot and sunny days.

In a new "State of the Air" report by the American Lung Association, the organization gave all three Delaware counties a grade of F for having too many high-ozone days.

The report showed some improvement, with the county of New Castle earning a C grade on particle pollution, an improvement upon last year's D grade. The other two counties received A's in that category.

State officials estimate as much as 90 percent of the chemicals that produce ozone in Delaware come from out-of-state sources that are upwind.

Doctors says people with ongoing health problems such as asthma and cardiovascular disease have a higher risk of ending up in the emergency room due to high ozone.

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