Michigan Dept. of Environment, Great Lakes, and EnergyThe data contained in this layer file are representative of the current EGLE statewide air monitoring database. This monitoring network meets the United States Environmental Protection Agency's (USEPA) monitoring regulations. The layer contains location, site photographs, and defines the specific pollutants monitored for at that site. Overall the air monitoring network collects data for the six criteria pollutants outlined through the USEPA's National Ambient Air Quality Standards (i.e., carbon monoxide, lead, nitrogen dioxide, ozone, particulate pollution, and sulfur dioxide) along with several other pollutants, as relevant to each area. This data is updated quarterly. Field Name Alias Description OBJECTID OBJECTID N/A SiteName Site Name Official name of the air monitoring site. MonitorType Monitor Type Distinguishes if this is a state or tribal monitor. AqsId AQS ID AQS ID is a national specific numbering convention that each monitor. StationAddress Address Geographic address closest to where the monitor is located. MonitoringDataWebpage Hourly Monitoring Data Page Link provided to the MiAir webpage which provides hourly monitoring data. GeneralInfoWebsite General Information Website Link provided to the EGLE AQD monitoring webpage which features additional information on air monitoring. MonitorPhoto Monitor Photo Link provided to photos of the specific monitors, when available. CarbonMonoxide CO Denotes if the site monitors for the pollutant listed. TraceCarbonMonoxide Trace Carbon Monoxide Denotes if the site monitors for the pollutant listed. NitrogenDioxide NO2 Denotes if the site monitors for the pollutant listed. NitrogenOxide NO Denotes if the site monitors for the pollutant listed. Ozone Ozone Denotes if the site monitors for the pollutant listed. SpeciationPartMat25micron Speciation Particulate Matter 2.5 micron Denotes if the site monitors for the pollutant listed. ParticulateMatter25micron Particulate Matter 2.5 micron Denotes if the site monitors for the pollutant listed. ParticulateMatter10micron Particulate Matter 10 micron Denotes if the site monitors for the pollutant listed. BlackCarbon Black Carbon Denotes if the site monitors for the pollutant listed. SulfurDioxide SO2 Denotes if the site monitors for the pollutant listed. TraceSulfurDioxide Trace Sulfur Dioxide Denotes if the site monitors for the pollutant listed. VolatileOrganicChemicals VOCs Denotes if the site monitors for the pollutant listed. Polycyclic Polycyclic Denotes if the site monitors for the pollutant listed. Carbonyls Carbonyls Denotes if the site monitors for the pollutant listed. Metals Metals Denotes if the site monitors for the pollutant listed. Meteorologic Meteorologic Denotes if the site captures meteorological information which could include things such as (but not limited to): temperature, wind speed, and wind direction. Questions about this data can be directed to Marissa Vaerten at VaertenM@michigan.gov .ArcGIS DynamicMapLayerhttps://hub.arcgis.com/datasets/7667046c1a724cebaf153ec1336f74f4_0engState of Michigan Open Data PortalPublicAir Monitoring Sites [Michigan]Web servicesMichiganLast Modified: 2025-09-24