Air quality in Sedlec, Southeast, Czechia today

Mr. Duck’s Air Quality Score

Moderate air today for Sedlec, Southeast, 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 Sedlec today is classified as Moderate. The primary pollutant measured is PM2.5 (fine particles). Recent observations show a PM2.5 concentration of 11.3 µg/m³ and a PM10 level of 11.9 µg/m³, based on five valid measurements recorded by OpenAQ.

These values reflect the current monitoring snapshot for Sedlec in the Southeast region of Czechia. 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

Sedlec’s air‑quality feed draws from a single monitoring site that reports six separate pollutant measurements, giving a total of six data rows. The dataset includes nitrogen monoxide (NO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter up to 10 µm (PM₁₀), fine particulate matter up to 2.5 µm (PM₂.₅) and sulfur dioxide (SO₂). For five of the pollutants – NO₂, O₃, PM₁₀, PM₂.₅ and SO₂ – the most recent values were recorded on 2026‑02‑10 at 14:00 UTC, indicating very fresh data for those compounds. The NO reading is older, last updated on 2024‑03‑11 at 10:00 UTC, so it reflects conditions from almost two years ago.

All six pollutants have a single reported value, which also serves as the minimum, median and maximum for each. NO sits at 1.9 µg/m³, NO₂ at 8.6 µg/m³, O₃ at 42.5 µg/m³, PM₁₀ at 11.9 µg/m³, PM₂.₅ at 11.3 µg/m³ and SO₂ at 9.3 µg/m³. Because each metric is based on one observation, there is no spread or percentile range to describe – the data are point measurements rather than a distribution.

The coverage is therefore limited: only one monitoring location supplies all six pollutants, and while most of the readings are up‑to‑date, the NO figure is noticeably outdated. Users should keep in mind that air quality can differ across neighborhoods and over time, and the current snapshot may not capture those variations fully.

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 current dataset for Sedlec includes five valid measurements and is updated within three days, with the latest refresh recorded at 2026‑02‑10 14:00 UTC. These figures represent a snapshot of conditions across the city; air quality can differ by specific location and time of day, so values may not reflect short‑term variations or micro‑area differences.

OpenAQ station rows