Air quality in St. Pölten, Lower Austria, Austria today
Mr. Duck’s Air Quality Score
Moderate air today for St. Pölten, Lower Austria, Austria
This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.
Air quality today
The air quality in St. Pölten today is classified as Moderate. According to the latest assessment, the primary pollutant is PM2.5. The reference value for PM2.5 is 20.75 µg/m³, and the reference value for PM10 is 25.0 µg/m³. These concentrations are based on seven valid measurements collected for the day. The measurement set includes data from several monitoring stations across St. Pölten, offering a composite view of particulate concentrations. Both PM2.5 and PM10 values align with the reference thresholds associated with the Moderate classification. The seven valid observations provide a basis for the current assessment.
The data are shown via OpenAQ and reflect the current monitoring results without additional analysis. 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 St. Pölten in Lower Austria contains measurements for carbon monoxide (CO), nitrogen monoxide (NO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter 10 µm (PM₁₀), particulate matter 2.5 µm (PM₂.₅) and sulphur dioxide (SO₂). Across the city 26 rows of observations are recorded from five monitoring sites, but the recent‑ness of the data varies: eight rows have been updated within the last three days, while the remaining eighteen rows are classified as old. The most current timestamps for CO, NO₂, O₃, PM₁₀, PM₂.₅ and SO₂ are all from 2026‑02‑10 20:00 UTC, whereas the NO measurement dates back to 2024‑03‑11 12:00 UTC, indicating that nitrogen monoxide data is considerably less fresh than the other pollutants.
Looking at the numbers, NO₂ values range from 11.28 to 32 µg/m³ with a median of 16.51 µg/m³; PM₁₀ spans 9.0 to 25.0 µg/m³ (median 15.25); CO varies between 238.62 and 401.58 µg/m³ (median 250); O₃ is recorded from 23.247 to 51.382 µg/m³ (median 39); SO₂ runs from 1.30 to 3.0 µg/m³ (median 1.65); and PM₂.₅ covers 5.40 to 20.75 µg/m³ (median 5.85). The maximum CO concentration of 401.58 µg/m³ is the highest peak among all pollutants, while the median values for most species sit well below their respective maxima, highlighting a notable spread in observed levels. Data for most pollutants comes from the Eybnerstraße station, with CO uniquely reported from the Europaplatz site, showing an uneven spatial coverage across the city.
Because a large share of the rows are older and some pollutants are measured at only one location, the snapshot does not capture the full temporal or geographic variability of air quality in St. Pölten. Users should keep in mind that conditions can differ by neighbourhood and time of day, and the available figures represent the most recent observations that have been uploaded to the OpenAQ platform.
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 current dataset for St. Pölten includes seven valid measurements and has been updated within 3 days, with the latest update recorded at 2026-02-10T20:00:00+00:00. These values represent a snapshot of conditions at the time of collection. Please note that air quality can vary by location and time within the city, so individual experiences may differ from the reported figures.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| St. Pölten - Europaplatz | no2 | 32.0 | µg/m³ | 2016-12-12 09:00 UTC |
| St. Pölten - Europaplatz | pm10 | 9.0 | µg/m³ | 2016-12-12 09:00 UTC |
| St. Pölten - Eybnerstraße | no2 | 18.0 | µg/m³ | 2016-12-12 09:00 UTC |
| St. Pölten - Eybnerstraße | o3 | 39.0 | µg/m³ | 2016-12-12 09:00 UTC |
| St. Pölten - Eybnerstraße | pm10 | 11.0 | µg/m³ | 2016-12-12 09:00 UTC |
| St. Pölten - Eybnerstraße | so2 | 3.0 | µg/m³ | 2016-12-12 09:00 UTC |
| NET.03 | no2 | 27.15451812 | µg/m³ | 2024-03-04 09:00 UTC |
| NET.03 | pm10 | 17.5 | µg/m³ | 2024-03-04 10:00 UTC |
| NET.03 | pm25 | 5.85000038 | µg/m³ | 2023-08-01 12:00 UTC |
| NET.03 | no | 5.42510223 | µg/m³ | 2024-03-04 10:00 UTC |
| NET.03 | no2 | 14.72463226 | µg/m³ | 2024-03-04 10:00 UTC |
| NET.03 | o3 | 51.382 | µg/m³ | 2024-03-04 10:00 UTC |
| NET.03 | pm10 | 13.0 | µg/m³ | 2024-03-04 10:00 UTC |
| NET.03 | pm25 | 5.39999961 | µg/m³ | 2024-03-04 10:00 UTC |
| NET.03 | so2 | 1.29999995 | µg/m³ | 2024-03-04 10:00 UTC |
| St. Pölten Eybnerstraße | no | 2.68137216 | µg/m³ | 2024-03-11 12:00 UTC |
| St. Pölten Eybnerstraße | no2 | 11.28251 | µg/m³ | 2026-02-10 20:00 UTC |
| St. Pölten Eybnerstraße | o3 | 23.247 | µg/m³ | 2026-02-10 20:00 UTC |
| St. Pölten Eybnerstraße | pm10 | 25.0 | µg/m³ | 2026-02-10 20:00 UTC |
| St. Pölten Eybnerstraße | pm25 | 20.75 | µg/m³ | 2026-02-10 20:00 UTC |
| St. Pölten Eybnerstraße | so2 | 1.649999 | µg/m³ | 2026-02-10 20:00 UTC |
| St. Pölten Europaplatz | no2 | 15.0114756 | µg/m³ | 2026-02-10 20:00 UTC |
| St. Pölten Europaplatz | pm10 | 25.0 | µg/m³ | 2026-02-10 20:00 UTC |