Air quality in Tuxtla Gutiérrez, Chiapas, Mexico today

Mr. Duck’s Air Quality Score

Unhealthy for sensitive groups for Tuxtla Gutiérrez, Chiapas, 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 overall air quality today is classified as USG. The main pollutant is PM2.5 (fine particles), and the reported concentration is 47.2 µg/m³. No PM10 data is available for this location. The concentration is expressed in micrograms per cubic meter, which is the standard unit for particulate matter reporting. These values are based on the most recent observations available for the city.

The figure is derived from seven valid measurements collected in Tuxtla Gutiérrez, Chiapas, Mexico, and is displayed through OpenAQ. All seven observations were recorded within the same reporting interval, providing a consistent snapshot of ambient air quality. OpenAQ aggregates data from multiple monitoring stations to present a unified view. 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 Tuxtla Gutiérrez air‑quality feed currently provides recent measurements for seven pollutants – carbon monoxide (CO), nitrogen monoxide (NO), nitrogen dioxide (NO2), nitrogen oxides (NOX), ozone (O3), fine particulate matter (PM2.5) and sulfur dioxide (SO2). All of these values come from a single monitoring site identified as Palacio Municipal, and the dataset contains seven rows, one for each pollutant, all recorded within the last 30 days. The most recent timestamps are clustered on 2026‑02‑10, with NO, NO2, NOX, O3, PM2.5 and SO2 each logged at 22:00 UTC, while the CO reading is slightly older, captured on 2026‑01‑28 at 21:00 UTC. Because each pollutant has only one entry, the reported minimum, median and maximum are identical, indicating no observed spread for any individual parameter.

The numeric values show a clear contrast among the pollutants. CO is measured at 3.44 ppm, which is the highest concentration among the gases, whereas NOX registers at just 0.00046 ppm, the lowest reading in the set. PM2.5 stands out with a concentration of 47.23 µg/m³, markedly larger than the gas‑phase measurements and the only parameter expressed in micrograms per cubic metre. The remaining gases – NO, NO2, O3 and SO2 – fall between 0.00053 ppm and 0.00402 ppm, reflecting very low parts‑per‑million levels at the time of sampling.

Because the data originates from a single location, it captures conditions only at the municipal palace and does not represent the full spatial variability across Tuxtla Gutiérrez. Nevertheless, the seven recent rows demonstrate that the monitoring network is actively reporting all listed pollutants, with most values refreshed within the past two weeks and none older than a month. This snapshot offers a concise, up‑to‑date picture of the city’s air‑quality profile at the reporting site.

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 Tuxtla Gutiérrez includes seven valid measurements and is updated within 30 days. The latest values were recorded on 2026-02-10 at 22:00 UTC. These figures represent a snapshot of conditions at the monitoring sites and may not reflect micro‑scale variations. Air quality can vary by location and time within the city, so individual experiences may differ.

OpenAQ station rows