Air quality in Gratwein-Straßengel, Styria, Austria today

Mr. Duck’s Air Quality Score

Good air today for Gratwein-Straßengel, Styria, Austria

⚠️ 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

Today the air quality in Gratwein‑Straßengel is rated as Good. The main pollutant identified is PM10. The PM10 reference value recorded is 27.41 µg/m³, based on seven valid measurements collected during the monitoring period. These measurements are presented through OpenAQ. The data were gathered from local monitoring stations that contribute to the OpenAQ network.

The current assessment reflects the latest available observations for the city and shows that PM10 levels remain within the range that defines a Good air quality category. No other pollutants are reported as dominant in the data set. The seven observations provide a snapshot of current conditions and support the overall Good rating. 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 air‑quality feed for Gratwein‑Straßengel includes three measured pollutants – nitrogen dioxide (NO₂), sulphur dioxide (SO₂) and particulate matter 10 µm (PM10). Across the dataset there are 16 individual rows of sensor readings. Seven of those rows have been updated within the last three days, while the remaining nine are older than three days. All three pollutants share the same most recent timestamp of 2026‑02‑10 20:00 UTC, so the freshest values are only a couple of days old.

For NO₂ the sensor values span from a low of 11.56 µg/m³ up to a high of 83 µg/m³, with a median of 15.47 µg/m³. The 10th percentile sits at 12.42 µg/m³ and the 90th percentile at 53.73 µg/m³, indicating that most recent measurements cluster near the lower end of the observed range. SO₂ shows a much narrower spread, ranging from 0.71 µg/m³ to 5.92 µg/m³; the median is 2.93 µg/m³, the 10th percentile 1.28 µg/m³ and the 90th percentile 4.96 µg/m³. PM10 values are more variable, with a reported minimum of –1.0 µg/m³ (likely a sensor artefact), a maximum of 55 µg/m³, and a median of 21.47 µg/m³; the 10th and 90th percentiles are 3.96 µg/m³ and 46.72 µg/m³ respectively.

Coverage differs among the pollutants: six recent rows are available for both NO₂ and SO₂, each linked to four monitoring stations, whereas PM10 is represented by only four recent rows from three stations. This uneven station distribution means that PM10 observations are less extensive than those for the gases. Because roughly half of the rows are older than three days, the dataset captures a snapshot of recent conditions but also includes a substantial portion of historical values, so actual air‑quality conditions in Gratwein‑Straßengel can vary across locations and times.

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 Gratwein‑Straßengel includes seven valid measurements and is updated within 3 days. The most recent data were recorded on 2026‑02‑10 at 20:00 UTC. Please note that air quality can vary significantly by location and time within the city.

OpenAQ station rows