Weather and Nature

Air quality in Santa Fe

Most recent reading from the official reporting area covering Santa Fe.

Preliminary readings from official networks, not fully validated. For health decisions follow your doctor and your local environmental agency.

AQI

34

Good (0 to 50)

Santa Fe, NM · 10/15/26 20:00 MDT

Main pollutant

OZONE

New Mexico Air Quality Bureau

What to do

Good (0 to 50)

No health risk expected.

Forecast

No records in the period queried.

Air quality index gauge for Santa FeHalf-moon gauge with the six EPA AQI bands and the needle at the value measured near Santa Fe: 34, category Good (0 to 50).34Good (0 to 50)0300Good (0 to 50)Moderate (51 to 100)Unhealthy for sensitive groups (101 to 150)Unhealthy (151 to 200)Very unhealthy (201 to 300)
Our own gauge, with the official AQI bands and the nearest reading to Santa Fe.

Index

RangeWhat to do
Good (0 to 50)No health risk expected.
Moderate (51 to 100)Unusually sensitive people may cut back on outdoor effort.
Unhealthy for sensitive groups (101 to 150)Children, older adults and people with asthma or heart disease should reduce hard outdoor activity.
Unhealthy (151 to 200)Everyone may feel effects; sensitive groups should stay indoors.
Very unhealthy (201 to 300)Health alert: avoid outdoor exertion.
Hazardous (above 300)Emergency conditions: stay in filtered air.

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How to read this page

How to read the AQI

Up to 50 the air is good, up to 100 moderate, above 100 it starts affecting sensitive groups. The Santa Fe score reports the worst pollutant of the moment — right now, OZONE, not the average of all of them.

Where the data comes from

The reading comes from the AirNow public archive (U.S. EPA), measured by New Mexico Air Quality Bureau, at the Santa Fe, NM monitor, at 10/15/26 20:00 MDT.

Preliminary data, and distance

AirNow publishes measurements without final validation, not valid for regulatory use. And the monitor is not inside Santa Fe: treat the number as an order of magnitude, not as a measure of your street.

What to do with a high index

With an index above 100, cut outdoor effort, close windows facing busy roads and follow the official band-by-band advice on the AirNow site.

AirNow — AQI Basics

Understanding air quality in Santa Fe

Is the air in Santa Fe good right now?

The nearest reading to Santa Fe shows AQI 34 (Good (0 to 50)), measured at Santa Fe, NM, 15 km from the centre, with OZONE as the leading pollutant.

In that band the air in Santa Fe imposes no restriction on anyone, including people with asthma and anyone exercising outdoors.

What does an AQI of 34 mean for health in Santa Fe?

No health risk expected. AQI is not a concentration: it is a 0-to-500 score that converts each pollutant’s measurement through breakpoints set by the EPA and reports the worst one. So an AQI of 34 in Santa Fe can come from particulate matter one day and from ozone the next, and feel quite different. The monitor serving Santa Fe is 15 km away: in a city of 87,505 the gap between a main road and a park can exceed that distance.

Words on this page

AQI

The United States Air Quality Index, 0 to 500, which converts each pollutant concentration into a single score and reports the worst one. Up to 50 is good, above 100 it starts to affect sensitive groups, above 150 it affects everyone. The score is not linear in concentration: it follows breakpoints set by the EPA.

Standard definition by U.S. EPA — AQI Technical Assistance Document · AQI

Ground-level ozone

Ozone formed near the ground when sunlight reacts with exhaust gases and solvents. It is not the ozone layer, which sits kilometres up and protects us: this one irritates the airways and rises on clear, hot, windless days.

Standard definition by U.S. EPA — AQI Technical Assistance Document · Ground-level ozone

PM2.5

Particulate matter under 2.5 micrometres across, fine enough to reach the depths of the lung. It is the pollutant that most often sets the AQI, and it comes from burning: diesel engines, fire, wood stoves, industry.

Standard definition by U.S. EPA — AQI Technical Assistance Document · PM2.5

UV index

An open-ended scale starting at 0 that measures the strength of ultraviolet radiation able to redden skin. From 3 to 5 protection is already advised, 8 to 10 is very high and above 11 is extreme. It depends on how high the Sun is, on the ozone layer, on altitude and on cloud.

Standard definition by WHO / WMO — Global Solar UV Index · UV index

Preliminary data

A measurement published as soon as it is collected, before the agency’s final review. It can be corrected or withdrawn: earthquake magnitudes shift in the first hours, air-quality readings are revised weeks later. Use it to plan your day, not for regulatory or legal purposes.

Preliminary data

See the full environment and live data glossary

Data from 10/16/26, 2:26 AM UTC

  • Dados de cidades: GeoNames (CC BY 4.0)

How to read these numbers

The value is preliminary: networks publish a reading within about an hour and validate it later. It is good for deciding whether to go running today, not for legal comparison between years.

Frequently asked questions

What is the air quality in Santa Fe right now?
The large number at the top is the latest reading from the reporting area that includes Santa Fe, with the observation time beside it.
What about tomorrow?
Where the agency publishes a forecast, it appears in the day table. Forecasts are made by the network’s own meteorologists with a dispersion model.

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