Air quality in Aguascalientes City, Aguascalientes, Mexico today

Mr. Duck’s Air Quality Score

Unhealthy air today for Aguascalientes City, Aguascalientes, 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 today in Aguascalientes City is classified as Unhealthy. The primary pollutant is PM2.5. Current measurements show PM2.5 at 87.0 µg/m³ and PM10 at 222.0 µg/m³. The reported concentrations are expressed in micrograms per cubic meter. These figures are derived from 24 valid measurements taken during the day. The observed values are higher than typical background concentrations for the region.

Data is shown via OpenAQ. A total of 24 valid observations contributed to the reported values. These observations are part of the open data initiative that provides public access to air quality information. 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 Aguascalientes City air‑quality feed pulls data from four monitoring stations, providing a total of 32 recent observations. Twenty‑three of those rows were recorded within the last 30 days, while nine are older than a month; the most recent timestamp for every pollutant is 2026‑02‑10 22:00 UTC, so the dataset is generally fresh but does contain some dated entries. All eight pollutants—carbon monoxide (CO), nitric oxide (NO), nitrogen dioxide (NO₂), nitrogen oxides (NOX), ozone (O₃), particulate matter 10 µm (PM₁₀), particulate matter 2.5 µm (PM₂.₅) and sulfur dioxide (SO₂)—are reported from each of the four stations.

Across the city the measured values show a wide spread for the particulate fractions. PM₁₀ ranges from a low of 27.17 µg/m³ to a high of 222 µg/m³, with a median of 78 µg/m³, while PM₂.₅ varies between 10 µg/m³ and 87 µg/m³, median 19 µg/m³. The gases are generally present at much lower concentrations: CO median is 0.295 ppm (range 0.12–1.66 ppm), NO median 0.00183 ppm (0.00121–0.00281 ppm), NO₂ median 0.00921 ppm (0.00352–0.04981 ppm), NOX median 0.01128 ppm (0.00486–0.05201 ppm), O₃ median 0.02618 ppm (0.01415–0.09473 ppm) and SO₂ median 0.00027 ppm (0.0–0.0348 ppm). The particulate metrics therefore exhibit the greatest absolute variability, whereas the gaseous pollutants stay within tighter bounds.

Because the dataset combines recent and older rows, the picture it paints is a snapshot rather than a continuous record; conditions can differ across neighborhoods and over time. The four‑station network offers city‑wide coverage, but the presence of nine older rows means that some locations may not reflect the most current air quality, underscoring the importance of checking the timestamp for each measurement when interpreting the data.

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

This dataset for Aguascalientes City includes 24 valid measurements and is updated within 30 days. The most recent update was on 2026-02-10 at 22:00 UTC. Air quality can vary by location and time within the city, so this snapshot may not represent conditions everywhere. Users should consider this timing when interpreting the data.

OpenAQ station rows