Air quality in Oulu, North Ostrobothnia, Finland today

Mr. Duck’s Air Quality Score

Moderate air today for Oulu, North Ostrobothnia, Finland

⚠️ 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 today in Oulu is classified as Moderate. The primary pollutant identified is PM2.5 (fine particles).

Measurements from six valid monitoring points show a PM2.5 reference value of 10.2349606 and a PM10 reference value of 12.4059668. 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 Oulu contains measurements of four key air‑quality constituents – nitrogen dioxide (NO₂), ozone (O₃), particulate matter up to 10 µm (PM₁₀) and fine particulate matter up to 2.5 µm (PM₂.₅). These values come from seven recorded rows that represent three monitoring stations across the city, giving a modest spatial snapshot of conditions.

All observations are recent: the most current timestamp for each pollutant is 2026‑02‑10 18:00 UTC, and every entry is flagged as having been updated within the past three days. NO₂ shows a spread from about 22 µg/m³ at the Pyykösjärvi site to roughly 57 µg/m³ across the dataset, with a median near 39 µg/m³, indicating that typical levels sit in the middle of this range. PM₁₀ values are low, ranging from just over 2 µg/m³ at Pyykösjärvi up to about 12 µg/m³, and the median is close to 7 µg/m³, suggesting most readings cluster toward the lower end of the observed spectrum. PM₂.₅ measurements are slightly higher, with a minimum around 6.6 µg/m³, a maximum just over 10 µg/m³ at Nokela, and a median near 8.4 µg/m³, indicating a relatively tight distribution. Ozone is represented by a single reading of roughly 48 µg/m³ from Pyykösjärvi, so no range can be derived for this pollutant.

Because the data set includes only three stations, spatial coverage is limited and conditions may differ in parts of Oulu not directly monitored. Nevertheless, the recent timestamps mean the figures reflect the city’s air quality at the time of the last update rather than historical averages.

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 Oulu are based on six valid measurements and were updated within three days, with the latest reading recorded at 2026‑02‑10T18:00:00+00:00. This snapshot reflects conditions at the time of sampling but air quality can vary across different neighbourhoods and times of day within the city, so values may not represent every location or moment.

OpenAQ station rows