Air quality in Devnya, Varna, Bulgaria today

Mr. Duck’s Air Quality Score

Unhealthy for sensitive groups for Devnya, Varna, Bulgaria

⚠️ 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 Devnya today falls into the USG category. The primary pollutant identified is PM2.5 (fine particles). Measurements show a PM2.5 concentration of 43.26 µg/m³ and a PM10 level of 43.46 µg/m³, based on 13 valid observations recorded through OpenAQ.

These figures represent the current snapshot for Devnya, Varna region, Bulgaria. 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 Devnya air‑quality record draws from two monitoring sites and a total of twenty‑three data rows covering a suite of pollutants: carbon monoxide (CO), nitrogen oxides (NO and NO₂), ozone (O₃ – not reported in the latest values), particulate matter at four size fractions (PM1, PM2.5, PM4, PM10), sulfur dioxide (SO₂), as well as humidity, pressure and temperature. The most recent measurements were all logged within the last three days of 2026‑02‑10, except for nitrogen monoxide which dates back to 2024‑03‑11, indicating that the dataset is largely current but contains a single older entry.

Across the pollutants with fresh data, CO peaks at 680 µg/m³ (median 113.7 µg/m³) and spans from just under one hundred to the maximum value, showing a wide distribution. NO₂ exhibits an even broader spread, ranging from about 28 µg/m³ up to 7 734 µg/m³ with a median near 4 968 µg/m³; the tenth percentile sits at roughly 1 016 µg/m³ and the ninetieth at 7 181 µg/m³, underscoring considerable variability. Particulate matter levels are comparatively tight: PM10 varies between 16.3 and 43.5 µg/m³ (median 20.7 µg/m³), while PM1, PM2.5 and PM4 each range from the mid‑teens to low forties µg/m³ with medians around 28–30 µg/m³. Sulfur dioxide is recorded at a constant zero for both its minimum and median, with an occasional peak of 17.9 µg/m³.

The dataset therefore offers comprehensive coverage of major gases and fine particles but is uneven in temporal depth: most parameters are refreshed daily, yet NO remains an outlier with data over two years old. Because the observations come from only two stations, spatial differences within Devnya may not be fully captured, and conditions can differ across neighborhoods or times when measurements are absent.

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 Devnya reflects 13 valid measurements and is Updated within 3 days, with the latest values recorded at 2026‑02‑10T22:28:00+00:00. These figures provide a recent snapshot of ambient conditions, but air quality can differ across neighborhoods and change throughout the day, so local variations may not be captured in this summary.

OpenAQ station rows