You can check the air quality in Mesa County on our website,

Air Quality Conditions

Air quality directly impacts your quality of life.

What do we do?

Mesa County Public Health constantly monitors air quality with forecast models, measurement tools, and observation.

Our team uses this data to inform community members and future policies.


What is Air Quality?

Air quality is measured by a system called Air Quality Index (AQI). It was developed by the Environmental Protection Agency (EPA) to assign a number to the air quality.


This system takes four major air pollutants into account, ground-level ozone, particle pollution, carbon monoxide, and sulfur dioxide. The higher the AQI, the greater the level of air pollution.

Is it safe to burn?

Find Air Quality Conditions on our website,

We issue Burn Permits for Mesa County.

Learn the Open Burn permit process.

Realtime Air Quality Conditions

The map below is generated by PurpleAir. Volunteers place these air sensors on their businesses or homes.

Understand the Scale

The higher the Air Quality Index (AQI) value, the greater the level of air pollution and the greater the health concern. The AQI is divided into six (6) categories as listed below. Each category corresponds to a different level of health concern.

  • Green – good
  • Yellow – moderate
  • Orange – unhealthy for sensitive groups
  • Red – unhealthy
  • Purple – very unhealthy
  • Maroon – hazardous

The Air Quality Index above is also useful, but only monitors several County-wide sensors.

Official State AQI

Current Air Quality Conditions

You’re looking at the AQI as measured by the State of Colorado here in the Grand Valley.

Air Quality Camera Views

You’re looking at real-time visibility. The location is listed on the top left of the camera image.