Air quality in Chihuahua City, Chihuahua, Mexico today

Mr. Duck’s Air Quality Score

Good air today for Chihuahua City, Chihuahua, Mexico

⚠️ This website is currently under active development. Some data may be incomplete or temporarily inaccurate. For health-critical decisions, please verify information through official government or environmental sources.

Categories follow US EPA AQI breakpoints for PM (estimate from latest valid measurements; this project does not compute EPA NowCast/24-hour AQI yet).

This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.

Air quality today

The air quality in Chihuahua City is currently classified as Good. The primary pollutant measured today is PM2.5, with a reference concentration of 6.2 µg/m³, while the accompanying PM10 level stands at 23.3 µg/m³ based on six valid observations.

Data are shown via OpenAQ and reflect the latest available readings for the city. This page is informational; for health guidance, use official sources such as EPA AirNow or WHO.

Latest sensor values

PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).

What the data includes

The OpenAQ feed for Chihuahua City currently provides eight measured pollutants – carbon monoxide (CO), nitrogen oxide (NO), nitrogen dioxide (NO₂), total nitrogen oxides (NOX), ozone (O₃), particulate matter ≤10 µm (PM₁₀), particulate matter ≤2.5 µm (PM₂.₅) and sulfur dioxide (SO₂). The dataset is built from 19 individual rows of observations collected at two monitoring stations, giving a modest spatial coverage across the city.

The most recent data are for O₃, PM₁₀ and PM₂.₅, all recorded on 2026‑02‑10 21:00 UTC and flagged as updated within the last seven days. Their values range from a low of 0.003 ppm to a high of 0.047 ppm for ozone, a median of 23.3 µg/m³ for PM₁₀ (with a spread from 10.0 to 27.6 µg/m³), and a median of 6.2 µg/m³ for PM₂.₅ (range 2.6–7.3 µg/m³). In contrast, CO, NO, NO₂, NOX and SO₂ are based on older measurements from mid‑2024, with the newest timestamp for CO on 2024‑07‑03 19:00 UTC, for NO and NOX on 2024‑07‑02 19:00 UTC, for NO₂ on 2024‑06‑02 22:00 UTC and for SO₂ on 2024‑04‑04 01:00 UTC. Their recorded ranges are narrow: CO varies between 0.16 and 0.34 ppm, NO from 0.002 to 0.205 ppm, NO₂ from 0.007 to 0.020 ppm, NOX from 0.005 to 0.212 ppm, and SO₂ is essentially at background levels (max 3 × 10⁻⁶ ppm).

Overall the dataset shows a mix of fresh and dated information: three pollutants have very recent readings while the remaining five rely on data that are several months old. This uneven temporal coverage means that current city‑wide conditions may differ from what is shown, especially for gases with older timestamps. With only two stations contributing, spatial variation within Chihuahua City is not fully captured, so localized spikes or drops could be missed in this snapshot.

Learn more about sources and filtering: About the data.

Trusted references: WHO (Air pollution) · US EPA AirNow · European Environment Agency (Air)

Latest sensor values (bars)

PM categories follow US EPA AQI breakpoints, shown here as an estimate derived from the latest valid measurements (this project does not compute EPA NowCast/24-hour AQI yet).

Data notes

The dataset for Chihuahua City includes six valid measurements and was updated within 3 days, with the most recent reading recorded on 2026‑02‑10 at 21:00 UTC. This information reflects a snapshot in time; air quality can differ across neighborhoods and change throughout the day, so conditions you experience may not match these values exactly.

OpenAQ station rows