The State of the Air 2024 report finds that despite decades of progress cleaning up air pollution, 39% of people living in America—131.2 million people—still live in places with failing grades for unhealthy levels of ozone or particle pollution. This is 11.7 million more people breathing unhealthy air compared to last year’s report.
Read the Key Findings for this nationwide report
For the city of Philadelphia, the results are mixed. While the air quality has improved over the past 20 years, the levels of ozone and particle pollution still get a failing grade. View Philadelphia’s State of the Air Report.
Philadelphia State of the Air