Air quality in Galway, Ireland today

Mr. Duck’s Air Quality Score

Good air today for Galway, Ireland

⚠️ 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 Galway is assessed as Good today. The primary pollutant identified is PM2.5 (fine particles).

Measurements from six valid monitoring points show a PM2.5 reference value of 5.08 and a PM10 reference value of 7.82. Data is shown via 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 Galway currently contains measurements from two OpenAQ monitoring sites. All three pollutants tracked – nitrogen dioxide (NO2), particulate matter up to 10 µm (PM10) and fine particulate matter up to 2.5 µm (PM2.5) – are reported with the same recent timestamp of 2026‑02‑10 13:00 UTC, meaning the latest values were recorded within the past three days.

For NO2 the observed values span from a low of 19.67 µg/m³ to a high of 36.67 µg/m³, with a median of 28.17 µg/m³ and the middle 80 % of readings falling between roughly 21.4 and 35.0 µg/m³. PM10 shows a narrower range, from 5.05 to 7.82 µg/m³, median 6.44 µg/m³ and an 80 % spread of about 5.33 to 7.54 µg/m³. PM2.5 is the least variable, ranging only between 3.93 and 5.08 µg/m³, median 4.51 µg/m³ and an 80 % interval of roughly 4.05 to 4.97 µg/m³.

Because both sites report all three pollutants at the same moment, coverage across the city is limited to these two locations and does not capture spatial differences that may exist elsewhere in Galway. The data are fresh, with no older or unknown timestamps, but the small number of stations means the picture presented reflects conditions only at the Briarhill monitoring points rather than a comprehensive city‑wide view. Consequently, while the current values give a clear snapshot for those sites, broader temporal and geographic patterns cannot be inferred from this dataset alone.

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 reflects six valid measurements and is updated within 3 days, with the most recent reading recorded on 2026‑02‑10 at 13:00 UTC. This snapshot provides a brief view of current conditions; however, air quality can differ across neighbourhoods and change throughout the day, so values may not represent every location or moment in Galway.

OpenAQ station rows