Air Quality Spreadsheet Updated

An updated copy of the 2014 Air Quality Index spreadsheet has been uploaded to the site. Highlights:


  • To date, the Roanoke Valley has not experienced any ozone or PM2.5 orange AQI days in 2014.
  • In August, we had 4 of top 10 high PM2.5 levels thus far in 2014.
  • We have only had 5 Yellow, Moderate ozone days thus far with the highest only being 54 AQI.
  • We have had 19 Yellow, Moderate PM2.5 days, thus far in 2014.
  • Thus far, 60 ppb would be the fourth highest level for ozone.  Fourth highest levels are used for compliance.
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