Air quality in Sankt Augustin, North Rhine-Westphalia, Germany today

Mr. Duck’s Air Quality Score

Good air today for Sankt Augustin, North Rhine-Westphalia, Germany

⚠️ 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 Sankt Augustin today is classified as Good. The primary pollutant identified is PM2.5 (fine particles).

Measurements show a PM2.5 concentration of 8.94 µg/m³ based on ten 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 OpenAQ feed for Sankt Augustin currently provides six measured variables: PM1, PM2.5, PM10, relative humidity, temperature and particle number concentration (UM003). The dataset comprises two recent rows from a single monitoring station; both rows were recorded on 2026‑02‑10 at 19:00 UTC for all pollutants except PM10, which only has an older entry dated 2025‑01‑13 at 23:00 UTC. This means that five of the six parameters are refreshed within the last three days, while PM10 data is more than a year old and reports a constant value of zero.

Across the recent observations, PM1 values range from about 0.11 to 5.71 µg/m³ with a median near 2.91 µg/m³, indicating modest variability. PM2.5 shows a broader spread, from roughly 0.29 up to 8.94 µg/m³ and a median of 4.62 µg/m³, suggesting higher concentrations are occasionally recorded. Relative humidity stays between 54 % and 61 %, centering on a typical 58 % level, while temperature fluctuates narrowly from 11.38 °C to 13.80 °C with a median around 12.59 °C. The particle number concentration (UM003) exhibits the widest range, from about 113 particles/cm³ up to 1 043 particles/cm³, with a median of roughly 578 particles/cm³, reflecting substantial short‑term changes in aerosol load.

Because only one station contributes data, spatial coverage across Sankt Augustin is limited; conditions can differ in other neighbourhoods or at times not captured by the latest timestamps. The freshness of most parameters is good (within three days), but the outdated PM10 record highlights a gap that users should keep in mind when interpreting overall air‑quality information for the city.

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 Sankt Augustin are based on ten valid measurements and were refreshed within the past three days; the latest update was recorded at 2026‑02‑10T19:00:00+00:00. This snapshot reflects conditions at the time of sampling, but air quality can change across different neighbourhoods and times of day within the city, so values may vary locally.

OpenAQ station rows