The “State of the Air 2018” found ozone pollution worsened significantly in 2014- 2016 compared to the previous report, while improvements continued in year-round particle pollution and fewer episodes of high particle days. This year’s report provides continued evidence that the United States must continue to fight climate change and to support and enforce the Clean Air Act to protect the nation from unhealthy air.
The State of the Air 2018 report shows that many cities across the nation experienced more days when ground-level ozone, also known as “smog,” reached unhealthy levels, including most of the cities with the worst ozone problems. Fortunately, most cities continued to reduce their burden of year-round particle pollution, and fewer cities Many cities across the suffered from more spikes in particle pollution, often called “soot.”
The “State of the Air 2018” report adds to the evidence that a changing climate is making it harder to protect human health. With record-setting heat in 2016, high ozone days zoomed, putting millions more people at risk and adding challenges to the work cities are doing across the nation to clean up.
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