The APCD has been issuing these advisories for more than 14 years. The RAQC helps APCD to get the word out by faxing local governments and e-mailing other organizations and businesses. APCD's High Pollution Advisory Program urges citizens to do their part to reduce air pollution. Strong temperature inversions can lead to increased carbon monoxide and particulate matter levels and impaired visual air quality in the region during the winter months, jeopardizing our health and our economy. Winter Pollutants Carbon monoxide is a colorless, odorless gas that is formed from incomplete combustion.
Vehicle exhaust is the major source of carbon monoxide pollution in the Denver metropolitan area.
Carbon monoxide affects us by entering our lungs and inhibiting our body s ability to transport oxygen. Particulate matter refers to airborne particles that can be inhaled and reduce lung function. Common sources of larger particulate include windblown dust, unpaved roads, street sand, and crushing and grinding operations. Federal health-based standards exist for carbon monoxide and particulate matter. The State of Colorado also has a visibility standard that applies during daylight hours in the Denver metropolitan area throughout the high pollution season.