A high of 93-degrees in the Twin Cities Wednesday triggered heat and air-quality warnings, but the metro wasn't the only area to feel the heat: The National Weather Service also issued heat advisories for southern Minnesota and western Wisconsin.

Bad air will be part of the midweek heat wave that's settling over Minnesota. An elevated ozone level has prompted the Minnesota Pollution Control Agency to issue a health advisory through Wednesday night for the Twin Cities and Rochester.

The American Lung Association released its "State of the Air" report Wednesday and has given Ramsey County an "F" for "short-term particle pollution." That's down from a "B'' in 2009, a "C" in 2010 and a "D'' in 2011. Overall, Minnesota earned better grades for "high ozone days," but lower grades for "high particle pollution days."

The same company was hit with a felony charge last month for allegedly falsifying data on its pollution control equipment.

Health officials want to be generous with the bug spray during the heat wave that's settling over Minnesota. Late summer heat creates ideal conditions for the mosquitoes that carry West Nile Virus. In the Twin Cities, the mosquito control district is chemically treating 77,000 storm drains.

The Sauk River Watershed District received a $298,000 grant and $175,000 loan to reduce the amount of phosphorus and sediment reaching the river through storm drains and runoff, the St. Cloud Times reports. The project area includes St. Cloud, Waite Park and St. Joseph. The aid was recently approved by the Minnesota Pollution Control Agency.