'A rare occurrence': Ground-level ozone detected in Reno-Tahoe air
Briefly

Breathing in ozone can cause coughing, throat irritation, and worsen existing lung conditions like asthma. High levels in summer attributed to vehicle emissions, wildfire smoke, and weather.
Wildfires, such as the Post Fire in California, contribute to ozone formation and poor air quality. Monitoring ozone levels through AirNow.gov and EnviroFlash is recommended for timely alerts.
Read at SFGATE
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