Air quality in Weiz, Styria, Austria today

Mr. Duck’s Air Quality Score

Moderate air today for Weiz, 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

The air quality in Weiz, Styria, Austria is currently classified as Moderate. This classification reflects the assessment criteria applied to the available data. The primary pollutant identified is PM2.5, with a measured concentration of 19.14 µg/m³. The reported PM2.5 value aligns with the reference value used for this assessment. A concurrent measurement for PM10 shows a level of 39.72 µg/m³, which corresponds to its reference value.

These values are based on four valid measurements reported through OpenAQ, and the dataset includes four separate observations collected during the monitoring period. Data are shown via OpenAQ, which aggregates measurements from participating monitoring stations, and are expressed in micrograms per cubic meter. The data reflect the conditions at the time of sampling and are presented without interpretation. 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 data for Weiz in Styria, Austria, comes from two monitoring stations and consists of eight measurement rows. Five pollutants are represented: nitrogen monoxide (NO), nitrogen dioxide (NO2), ozone (O3), particulate matter ≤ 10 µm (PM10) and particulate matter ≤ 2.5 µm (PM2.5). For NO2, O3 and PM10 the most recent values were recorded on 2026-02-10 20:00 UTC, while the NO reading dates back to 2024-03-11 12:00 UTC; PM2.5 also has its latest entry on 2026-02-10 20:00 UTC. Overall, four rows were updated within the last three days and the remaining four are classified as old, so half of the dataset reflects very recent conditions and half reflects older measurements.

Across the recent pollutants the observed ranges are modest. NO2 values span from 0 µg/m³ up to 11.9653988 µg/m³ with a median of about 5.98 µg/m³. O3 varies between 0 and 28.49 µg/m³, median 14.245 µg/m³, and PM10 ranges from 0 to 39.7248421 µg/m³, median roughly 19.86 µg/m³. Both PM2.5 and NO have a single reported figure – 19.1377926 µg/m³ for PM2.5 and 5.79632472 µg/m³ for NO – which also serve as their minimum and maximum values. The presence of zero as the minimum for NO2, O3 and PM10 indicates periods where concentrations were below detection or not recorded.

The coverage is uneven: three of the five pollutants (NO2, O3, PM10) benefit from fresh data, whereas NO relies on an older measurement, and PM2.5, while recent, is represented by only one value. Consequently, while the dataset gives a snapshot of current air quality for most major pollutants, the single‑point records for NO and PM2.5 limit the ability to describe variability over time in those components.

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 set for Weiz includes four valid measurements and is updated within 3 days. The latest values were recorded on 2026-02-10 at 20:00 UTC. Please note that air quality can vary by location and time within the city, and conditions may differ across neighborhoods.

OpenAQ station rows