air monitoring

The Air Monitoring Section maintains an air-quality monitoring program to measure ozone, nitrogen oxides, carbon monoxide, particulate matter, sulfur dioxide, volatile organic compounds, carbonyls and sulfate. There are monitoring stations in Underhill, Burlington (2/2024 temporary suspended), Rutland, and Bennington. Below is the configuration of Vermont's ambient air monitoring network for 2023.

2023 Vermont Ambient Air Monitoring Network

Click on Site location to view full Site Information. (Mt. Snow & Bennington Old Reservoir unavailable)

The Air Monitoring Section operates the division’s statewide ambient air monitoring network for the measurement of EPA criteria pollutants- ozone, particulate matter, nitrogen oxides, carbon monoxide and sulfur dioxide, as well as meteorological parameters such as wind speed and direction, temperature, barometric pressure, precipitation and solar radiation.

Underhill Site Information

EPA site number: 50-007-0007
Address: Proctor Maple Research Facility
County: Chittenden
Date site established: 5/1/88
Current status: Active

Site coordinates:

Rutland Site Information

EPA site number: 50-021-0002
Address: Parking lot adjacent to 9 Merchant's Row
County: Rutland
Date site established: 1/1/71
Current status: Active

Site coordinates:

Latitude: 43° 36' 29" (43.608056°)
Longitude: -72° 58' 58" (-72.982778°)
Elevation: 179 m (589 ft)

Burlington-Main Street Site Information

EPA site number: 50-007-0014
Address: 150 South Winooski Avenue
County: Chittenden
Date site established: 1/16/03
Current status: Temporarily suspended.

Site coordinates:

Latitude: 44° 28' 34" (44.476202°)
Longitude: -73° 12' 37" (-73.210383°)
Elevation: 63 m (207 ft)

Bennington Site Information

EPA site number: 50-003-0004
Address: Airport Road
County: Bennington
Date site established: 1/1/86
Current status: Active

Site coordinates:

Latitude: 42° 53' 51" (42.897500°)
Longitude: -73° 15' 03" (-73.250833°)
Elevation: 216 m (709 ft)

Vermont Long-Term Monitoring (VLTM) of Acid Sensitive Lakes

Detailed guidance on preparing a Construction Permit can be found in the following documents: 

The federal Clean Air Act requires states to submit plans to ensure the attainment and maintenance of national ambient air quality standards (NAAQS). The common term used to refer to these federally enforceable plans is "State Implementation Plans" or SIPs. The six criteria pollutants as defined by the U.S. Environmental Protection Agency (EPA) are carbon monoxide, lead, nitrogen dioxide, ozone, particulate matter, and sulfur dioxide. SIPs are also prepared to protect visibility at federal Class I areas consisting of national parks and wilderness areas.

REGIONAL SCALE AIR QUALITY SOURCE DISPERSION MODELING