Air quality in Hradec Králové, Northeast, Czechia today

Mr. Duck’s Air Quality Score

Moderate air today for Hradec Králové, Northeast, Czechia

⚠️ 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 Hradec Králové today is assessed as Moderate. The primary pollutant identified is PM2.5 (fine particles).

According to OpenAQ, the latest measurements show a PM2.5 concentration of 23.53 µg/m³ and a PM10 level of 38.7 µg/m³ based on nine valid readings. 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 Hradec Králové dataset contains eight measured variables collected from three monitoring stations, giving a total of eleven rows of data. All listed pollutants are represented: carbon monoxide (CO), nitrogen oxide (NO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter sizes PM1, PM2.5 and PM10, plus relative humidity. The most recent observations were recorded on 2026‑02‑10 at 18:00 UTC for PM2.5, PM1 and relative humidity, while CO, NO₂, PM10 and O₃ were last updated on 2026‑02‑10 at 14:00 UTC. The only older entry is NO, which dates back to 2024‑03‑11 at 10:00 UTC, indicating that nitrogen oxide data are less current than the other pollutants.

Across the variables the measured values show a narrow spread. PM2.5 ranges from 23.53 to 25.50 µg/m³ with a median of 24.51 µg/m³; CO is a single reading of 451.98 µg/m³; NO stays at 1.5 µg/m³; NO₂ is consistently 18.9 µg/m³; PM10 records 38.7 µg/m³; O₃ registers 38.3 µg/m³; PM1 is 8.36 µg/m³; and relative humidity sits at 56.35 %. Because each pollutant has only one or two distinct values, the dataset does not capture variability over time or across locations within the city.

Overall the data are fairly fresh for most pollutants, with the newest timestamps falling within the last few days, but the presence of a single older NO measurement highlights an uneven temporal coverage. Users should keep in mind that conditions can differ between the three stations and may change outside the narrow windows captured here.

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 Hradec Králové is based on nine valid measurements and was refreshed within the past three days, with the latest update recorded at 2026‑02‑10T18:00:00+00:00. This snapshot reflects conditions at that specific time; air quality can differ across neighbourhoods and change throughout the day, so local variations may not be captured in these figures.

OpenAQ station rows