St. Louis Air Quality

This year's pollution levels in St. Louis

moderate pollution

  • Sun, August 20, 2017

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  • outdoor sports

    go for it

  • cycling

    go for it

  • bring baby out

    go for it

  • eating outside

    go for it

impact risk if chronic exposure

The air is moderately polluted. Greater than the maximum limit established for one year by WHO. A long-term exposure constitutes a health risk.

below average

  • 23
  • 31
  • plume air quality index
  • annual average
  • 253 days
    per year
    at this level

main pollutants

    • 23
    • 23
  • ozone
    • 19
    • 23
  • particulate matter
    • 9
    • 11
  • nitrogen dioxide