The Minnesota Pollution Control Agency (MPCA) issued a health advisory concerning levels of air pollution in the southern part of the state from Thursday afternoon to Sunday morning.

The advisory was released because of elevated levels of fine particles in the air due to low wind conditions, moisture and warmer temperatures. Shifting winds, thanks to a cold front, are expected to enhance atmospheric mixing, sweeping away fine particles and preventing them from forming close to the ground.

When Air Quality Index levels start creeping up to 101 but remain below that point, advisories are sent out to warn the public about the possible health dangers of air pollution. Everyone may potentially be affected by particulate matter in the air but those belonging to sensitive groups are at risk. Sensitive groups include: the elderly, those with existing respiratory or cardiovascular diseases, children and those involved in both indoor and outdoor activities requiring heavy or extended exertion.

Sensitive groups are advised to minimize or postpone vigorous activities as well as reduce their exposure to air pollution for the duration of the health advisory. To alleviate air pollution levels, residents are urged to: eliminate the use of fireplaces and wood stoves; join car pools; lessen engine-idling if joining a carpool is not feasible; stick to bans on recreational use of off-highway vehicles; avoid the use of leaf blowers in government properties; avoid activities that spur dust in the air; stabilize loose soils; and limit use of gas-powered garden and lawn equipment.

Exposure to fine particles in the air has been linked to cardiovascular and respiratory problems, worsening existing conditions. Some of the symptoms associated with exposure include shortness of breath, chest pains, coughing, wheezing or fatigue. Anyone experience these symptoms is advised to visit their doctor immediately.

The Clean Air Act was enacted in 1970 as a means for the United States to combat pollution. Minnesota's efforts at adhering to the act and its subsequent amendments as well as the voluntary actions taken by facilities in the area has allowed the state to lower pollution levels in its air. Additionally, the state has been in compliance with all of the standards for national ambient air quality since 2002. However, the fight is far from over. Air Pollution Health Alerts in Minnesota were set in place to warn sensitive groups that they are at risk when the Air Quality Index reaches a certain level.