Localized Air Quality Index and forecast for St. Louis, MO. Track air pollution now to help plan your day and make healthier lifestyle decisions.
The air has reached a high level of pollution and is unhealthy for sensitive groups. Reduce time spent outside if you are feeling symptoms such as difficulty breathing or throat irritation.
Our current air quality index provides information on the quality of air that you are breathing and its impact on your health. There are at least six different pollutants that we track that impact the cleanliness of air and your health.are inhalable pollutant particles with a diameter less than 10 micrometers. Particles that are larger than 2.5 micrometers can be deposited in airways, resulting in health issues.
All raw air quality data and information has been obtained from Plume Labs. Although AccuWeather intends to provide accurate information relating to air quality and forecasting, the data or information may not have been subject to a quality assurance review to determine their accuracy.
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