The new report evaluated air quality in different parts of the country by measuring the presence of ozone and particle pollution in the atmosphere.

Data: American Lung Association; Note: Days where air pollution was worse received a greater weighting in the calculation; Chart: Alex Fitzpatrick/Axios The Valley is again among the worst metros in ...

South Florida air quality was graded by American Lung Association, which analyzed 2022-2024 data to grade counties on ...

The Los Angeles-Long Beach retained its dubious distinction as the nation’s smoggiest region, with ozone pollution getting worse over the past year, according to an annual report by the American Lung ...

State health officials on Monday warned that ground-level ozone is expected to be elevated from Denver southward to Colorado ...

Four New Jersey counties got failing grades for the number of days with high smog levels that can trigger asthma attacks, a ...

State of the Air’ report highlights heightened smog conditions and ‘select improvements’ to particle pollution ...