The Department of Environmental Quality Air Quality Division (AQD) is responsible for ensuring that Michigan's air remains clean. Air pollution sources are regulated to minimize adverse impacts on human health and the environment. Michigan strives to meet and maintain federal and state air quality standards, limits emissions of hazardous and toxic pollutants, and keeps the public informed about air quality conditions. Staff work to reduce outdoor air pollution and prevent deterioration of the air resource. This is done through emission control programs, monitoring, planning, voluntary reductions, permit limits, and source inspections.