Transcription of State of the Air 2021 - American Lung Association
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2021 State of the AirAmerican Lung Association State of the Air 20212 of ContentsAbout This Report Acknowledgments ..3 Why State of the Air ? ..4 Methodology ..6 Key Findings Ozone Trends ..12 Short-term Particle Pollution Trends ..13 Year-Round Particle Pollution Trends ..15 Populations at Risk ..16 Most Polluted Places to Live ..18 Cleanest Places to Live ..18 What Needs to Be Done ..19 Health Impact of Air Pollution Health Effects of Ozone ..20 Health Effects of Particle Pollution ..21 People at Risk ..24 Emerging Threats ..26 Protect Yourself and Your Community Reduce Your Personal Risk.
The current national ambient air quality standard for ozone is 70 parts per billion (ppb) measured over eight hours . EPA’s Air Quality Index reflects the 70 ppb standard . A .S .L . & Associates prepared a table by county that summarized, for each of the three years, the
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