Reno’s warm climate creates the conditions for temporary spikes in ozone pollution. While Reno met this standard, the city was rated a “D” by the American Lung Association (ALA) for short-term PM2.5 pollution, highlighting room for improvement. 1 The US EPA targets an annual allowance of no more than 3.2 unhealthy PM2.5 days per year. During the 2016 to 2018 monitoring period, greater Reno, which includes Washoe, Storey, and Lyon Counties as well as the state capital, Carson City, averaged 2.7 unhealthy PM2.5 days per year. Spikes in PM2.5 pollution are usually indicative of smoke from wildfires burning in the Eldorado, Tahoe and Plumas national forests, among others further abroad. While Reno air quality usually poses little to no risk to health, spikes in PM2.5 and ozone pollution contribute to roughly 12 unhealthy air quality days per year.
Each month in 2019 met this standard, with averages ranging from an AQI measurement of 13 in March to an AQI measurement of 20 in November. In 2019, Reno averaged an air quality index (AQI) score of 18, well within the US Environmental Protection Agency (EPA) “good” standard that requires a score of 50 or less. Reno air quality is generally considered healthy.
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