Air quality in Poznan, Greater Poland Voivodeship, Poland today

Mr. Duck’s Air Quality Score

Unhealthy air today for Poznan, Greater Poland Voivodeship, Poland

⚠️ 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 Poznan today is classified as Unhealthy. The primary pollutant identified is PM2.5, with a measured concentration of 85.9 µg/m³, while PM10 registers at 94.6 µg/m³ based on four valid observations.

Data is shown via 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 dataset for Poznań pulls in measurements from five monitoring sites and a total of thirty‑three individual data rows. It covers ten atmospheric variables that OpenAQ records at the city level: black carbon (BC), carbon monoxide (CO), nitrogen dioxide (NO₂, reported as “no2”), ozone (O₃), particulate matter sized ≤1 µm (PM1), PM10, PM2.5, relative humidity, sulfur dioxide (SO₂, reported as “so2”) and temperature. For each pollutant the most recent timestamp in the feed is 2026‑02‑10 19:00 UTC, so the newest values are all less than a week old. However, many rows lack a clear update time; twenty‑two of the thirty‑three entries are classified as “unknown” freshness, and six are marked simply as “old”, meaning that for a sizable share of the data the exact recency cannot be confirmed.

The numeric range captured across the recent measurements is wide. PM2.5 values span from about 5 µg/m³ at the low end to over 400 µg/m³ at the high end, with a median near 33 µg/m³; NO₂ varies between roughly 20 and 35 µg/m³ (median 26 µg/m³); PM10 runs from 15 to almost 95 µg/m³ (median 34 µg/m³). Carbon monoxide shows the greatest absolute spread, ranging from just over 400 µg/m³ up to nearly 1 000 µg/m³, with a median of 631 µg/m³. Sulfur dioxide is comparatively low and tightly clustered, between about 4 and 9 µg/m³ (median 4.3 µg/m³). The particulate matter fraction PM1, relative humidity and temperature are present but lack recent timestamps, so their current values cannot be stated with confidence.

Overall the data give a fairly detailed picture of key pollutants for Poznań, especially for PM2.5, NO₂, PM10, CO and SO₂, where recent readings exist from multiple stations. At the same time, the presence of many rows with unknown or old timestamps—and the absence of up‑to‑date information for BC, O₃, PM1, humidity and temperature—means that conditions can differ across neighborhoods and times, and the snapshot should be interpreted as a partial view of the city’s air quality at the moment captured.

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 Poznan are based on four valid measurements and were refreshed recently, with the latest update recorded at 2026‑02‑10T19:00:00+00:00 (updated within 3 days). This snapshot reflects conditions at the time of sampling; however, air quality can vary across different neighborhoods and change throughout the day, so values may differ from what you experience in other parts of the city.

OpenAQ station rows