Air quality in Křešín, Czechia today
Mr. Duck’s Air Quality Score
Moderate air today for Křešín, Czechia
This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.
Air quality today
The air quality in Křešín is currently classified as Moderate. The primary pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 concentration of 10.6 µg/m³ and a PM10 level of 8.9 µg/m³, based on five valid observations.
Data are 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 Křešín contains measurements from a single monitoring station that supplies seven rows of data, one for each pollutant tracked in the OpenAQ feed. All standard urban pollutants are represented: carbon monoxide (CO), nitrogen oxide (NO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter 10 µm or less (PM10), fine particulate matter 2.5 µm or less (PM2.5) and sulphur dioxide (SO₂).
Freshness varies across the series. The most recent updates for CO, NO₂, O₃, PM10, PM2.5 and SO₂ were recorded on 2026‑02‑10 at 14:00 UTC, indicating that these six parameters reflect conditions from just a few days ago. In contrast, the nitrogen oxide reading is older, last updated on 2024‑03‑11 at 09:00 UTC, which makes it the only value dated more than a year back.
The numeric values are uniform within each pollutant because only one measurement row exists per substance. CO registers at 389.0 µg/m³, NO at 0.36 µg/m³, NO₂ at 1.95 µg/m³, O₃ at 57.3 µg/m³, PM10 at 8.9 µg/m³, PM2.5 at 10.6 µg/m³ and SO₂ at 5.3 µg/m³. Since each pollutant has a single recorded point, the reported minimum, median and maximum are identical, giving no internal spread to describe variability.
Overall, the data set offers complete coverage of the listed pollutants but is limited to one location and, for NO, relies on an older observation. Consequently, while recent snapshots exist for most substances, the picture of air quality in Křešín remains constrained by the single‑station scope and the uneven timestamp distribution across pollutants.
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 Křešín is based on five valid measurements and was refreshed within the past three days, with the latest update recorded at 2026‑02‑10 14:00 UTC. This snapshot reflects conditions at the time of sampling; air quality can differ across neighbourhoods and change throughout the day, so values may not represent every location or moment in the city.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| Kosetice | no | 0.36 | µg/m³ | 2024-03-11 09:00 UTC |
| Kosetice | no2 | 1.95 | µg/m³ | 2026-02-10 14:00 UTC |
| Kosetice | o3 | 57.3 | µg/m³ | 2026-02-10 14:00 UTC |
| Kosetice | pm10 | 8.9 | µg/m³ | 2026-02-10 14:00 UTC |
| Kosetice | pm25 | 10.6 | µg/m³ | 2026-02-10 14:00 UTC |
| Kosetice | so2 | 5.3 | µg/m³ | 2026-02-10 14:00 UTC |