Air quality in Tonalá, Jalisco, Mexico today

Mr. Duck’s Air Quality Score

Moderate air today for Tonalá, Jalisco, 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 Tonalá today is classified as Moderate. The primary pollutant identified is PM10, which represents coarser particulate matter in the atmosphere.

Measurements show a PM2.5 concentration of 8.9 µg/m³ and a PM10 concentration of 58.6 µg/m³ based on four valid observations recorded by OpenAQ. 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 dataset for Tonalá pulls information from a single monitoring site – Loma Dorada – and currently contains ten recorded rows. Four of those rows were updated within the last seven days, while the remaining six are older than a year, so the freshest measurements date to 2026‑02‑10 22:00 UTC for carbon monoxide, ozone, PM10 and PM2.5, and the oldest dates are 2021‑03‑16 16:00 UTC for nitrogen dioxide and 2020‑12‑25 15:00 UTC for sulfur dioxide.

All six pollutants tracked by OpenAQ appear in the record set. The most recent carbon monoxide reading is 0.589184654586845 ppm, with values ranging from a low of 0.339136546882611 ppm to that maximum; the median sits near 0.464 ppm and the central 80 % of observations fall between roughly 0.364 and 0.564 ppm. Ozone shows a narrow band between 0.0261 and 0.0369 ppm, median 0.0315 ppm. Particulate matter is reported in two size fractions: PM10 varies from about 21 to 58.6 µg/m³ (median ≈ 39.8 µg/m³) and PM2.5 spans 8.90 to 11.78 µg/m³ (median ≈ 10.34 µg/m³). Nitrogen dioxide is represented by a single historic value of 0.013199 ppm, and sulfur dioxide likewise by one older measurement of 0.0026336 ppm.

Because the data come from only one station, spatial coverage across Tonalá is limited; conditions can differ in other neighborhoods or at times not captured by the recent rows. The mix of very recent readings for gases and particulates together with several years‑old values for NO₂ and SO₂ highlights an uneven temporal completeness across pollutants.

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 data shown for Tonalá reflects four valid measurements and is updated within 3 days, with the most recent reading recorded on 2026‑02‑10 at 22:00 UTC. While this snapshot provides a current view of air quality across the city, conditions can differ by neighborhood and change throughout the day, so local variations may exist beyond what is displayed here.

OpenAQ station rows