Air quality in Százhalombatta, Hungary today

Mr. Duck’s Air Quality Score

Moderate air today for Százhalombatta, Hungary

⚠️ 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 Százhalombatta is currently classified as Moderate. The primary pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 concentration of 19.0 µg/m³ and a PM10 level of 24.0 µg/m³, based on eight 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 Százhalombatta air‑quality feed contains six measured pollutants – carbon monoxide (CO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter ≤10 µm (PM10), particulate matter ≤2.5 µm (PM2.5) and sulphur dioxide (SO₂). All data come from four monitoring stations, giving a total of 19 recent rows in the OpenAQ database.

The most up‑to‑date observations were recorded on 2026‑02‑10 at 20:00 UTC for NO₂, O₃, PM10, PM2.5 and on 2026‑02‑09 at 10:00 UTC for CO; the SO₂ reading is older, last updated on 2025‑12‑17 at 10:00 UTC. Across pollutants the median values are modest: CO sits around 550 µg/m³ (with a range from about 194 to 1 485 µg/m³), NO₂ averages 8.3 µg/m³ (range 1.6–14.2 µg/m³), O₃ median is 43.9 µg/m³ (35.7–46.1 µg/m³), PM10 median 7.1 µg/m³ (6.0–24.0 µg/m³), PM2.5 is constant at 19 µg/m³, and SO₂ median is 4.38 µg/m³ (3.6–4.4 µg/m³). The spread is widest for CO, where the 10th percentile is roughly 268 µg/m³ and the 90th percentile climbs to about 1 237 µg/m³, indicating considerable variability between stations or times.

While most pollutants have recent measurements within the past three days, a notable portion of the dataset (five rows) is marked as “unknown” in terms of freshness, and five rows are classified as old. This uneven temporal coverage means that snapshot values reflect conditions at specific moments rather than continuous monitoring, so actual air quality across Százhalombatta may differ by location and time of day.

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 Százhalombatta is based on eight valid measurements and was refreshed within the past three days, with the latest update recorded at 2026‑02‑10 20:00 UTC. This snapshot reflects conditions at a specific time and place; air quality can differ across neighborhoods and change throughout the day, so values may not represent the entire city at any given moment.

OpenAQ station rows