The Minnesota Pollution Control Agency has issued an Air Quality Alert for all of Minnesota that will be in place today through 6 a.m. Friday. A cold front stretching from International Falls to Worthington is moving eastward today. It is expected to reach Wright County by mid-afternoon. Wright County is in the Red category (unhealthy for all people), so young children, the elderly and those with respiratory problems are urged to strictly limit outdoor exposure and even healthy people working outside are cautioned as well.