Air quality in Karviná, Moravia-Silesia, Czechia today

Mr. Duck’s Air Quality Score

Moderate air today for Karviná, Moravia-Silesia, 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 Karviná today is classified as Moderate. The primary pollutant measured is PM2.5 (fine particles). According to the latest data, the PM2.5 concentration stands at 31.8 µg/m³ and the accompanying PM10 level is 32.6 µg/m³, based on seven valid measurements reported through OpenAQ.

These values reflect the current monitoring snapshot for the city. 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 Karviná air‑quality dataset contains five measured pollutants – nitrogen dioxide (NO₂), ozone (O₃), particulate matter ≤10 µm (PM₁₀), particulate matter ≤2.5 µm (PM₂.₅) and sulphur dioxide (SO₂). The data come from eight individual rows, representing two monitoring stations that feed the OpenAQ platform.

For most pollutants the latest readings are very recent, having been updated on 2026‑02‑10 at 14:00 UTC. NO₂ shows a maximum of 7.3 µg/m³, with values ranging from 3.8 to 7.3 and a median of 5.55 µg/m³; PM₁₀ spans 11.0–32.6 µg/m³ (median 21.8), while PM₂.₅ varies between 6.0 and 31.8 µg/m³ (median 18.9). SO₂ is reported at a single value of 3.2 µg/m³, reflecting the limited range captured in the current rows. Ozone data are older, last refreshed on 2021‑02‑05 at 13:00 UTC, and consist of a solitary measurement of 24.1 µg/m³.

The dataset therefore offers fresh information for four of the five pollutants, but ozone coverage is outdated by several years. The spread between minimum and maximum values is modest for NO₂ and SO₂, yet considerably broader for the particulate fractions, indicating more variability in particle concentrations across the two stations. Because only two stations contribute data, spatial differences within Karviná are not fully captured; conditions can differ in neighborhoods that lie beyond the immediate reach of these monitors.

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 Karviná is based on seven valid measurements and was updated within 3 days (last refresh: 2026‑02‑10T14:00:00+00:00). While this provides a recent snapshot of citywide air quality, conditions can differ across neighborhoods and change throughout the day, so values may not represent every location or moment in Karviná.

OpenAQ station rows