Air pollution advisory issued for the weekend (Minneapolis-St. Paul Star Tribune) The Minnesota Pollution Control Agency has issued an Air Pollution Health Advisory for the Twin Cities metro area for Saturday and Sunday. This weekend's forecasted temperatures, close to 100 degrees, and clear skies are perfect conditions for developing high ozone levels. The Air Quality Index is forecasted to rise to between 90 and 100 over the weekend. Levels in the 90s are near the threshold [News Source]