Air Quality Bureau
New Mexico Ozone Forecast
New Mexico is making available a 48 hour ozone forecast for San Juan and Dona Ana Counties. This information on ground level Ozone (O3) concentrations for New Mexico is based on a photochemical model. This is a joint NOAA-EPA product of the Air Quality Forecast System by the National Weather Service. You may sign-up to recieve forecasts by visiting the ENVIROFLASH pages:
You may sign-up to receive forecasts for San Juan County Ozone based on different thresholds. For example you can choose to receive a daily ozone forecast or to receive a forecast only when the model predicts unhealthy levels.
An Ozone Action Day will be declared for the County if the Ozone forecast for tomorrow is at AQI of 101 (category Unhealthy for Sensitive Groups) or higher . AQI 101-150 corresponds to an Ozone 8-hour average (ppm) 0.076 - 0.095 ppm. On Ozone Action days you will receive a special message with health precautions and tips on how you can make a difference by reducing emissions that lead to ozone.
Information on actual observed ozone concentrations from NMED Ozone monitors is available here: http://www.nmenv.state.nm.us/aqb/AirQualityMonitoringData.html
OZONE ACTION DAYS
An Ozone Action Day will be declared if the Ozone is expected to reach the AQI Orange level corresponding to an Ozone 8-hour average (ppm) 0.076 - 0.095 ppm. Please take into consideration the following warning for Ozone Action Days
The following groups should limit prolonged outdoor exertion:
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For more information on the AQI and health effects of Ozone goto the Air Now Home Page or the Air Quality Index Home Page
Actions can be taken to help reduce ozone precursors (Volatile Organic Compunds and Nitrogen Oxides) to help reduce ozone.
Keep the Air Cleaner |
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![]() Office of Air Quality and Radiation (6301A) |
On Air Quality Action Days, you should also:
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San Juan VISTAS
New Mexico administers a voluntary emissions reduction program for the improvement of air quality in northwestern New Mexico - San Juan VISTAS - Voluntary Innovative Strategies for Today's Air Standards.
The purpose of San Juan VISTAS is to identify, promote, and implement cost-effective technologies and Best Management Practices to reduce air pollution affecting northwestern New Mexico, including ozone, haze, and greenhouse gases. San Juan VISTAS is now open to industries, municipalities, and other organizations in San Juan, Rio Arriba, and Sandoval Counties. Participants in the program are recognized by NMED.

