Air quality in Varna, Varna, Bulgaria today

Mr. Duck’s Air Quality Score

Good air today for Varna, 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 Varna today is classified as Good. The primary pollutant measured is PM2.5, with a reference concentration of 3.51 µg/m³, while the accompanying PM10 level stands at 19.15 µg/m³ based on seven valid observations.

Data are shown via OpenAQ and reflect the current conditions for Varna, 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 Varna air‑quality dataset draws from twelve measurement rows collected at two monitoring sites, all supplied through OpenAQ. It includes concentrations for carbon monoxide (CO), nitrogen oxide (NO), nitrogen dioxide (NO₂), ozone (O₃), particulate matter ≤ 10 µm (PM₁₀), particulate matter ≤ 2.5 µm (PM₂.₅) and sulfur dioxide (SO₂). For most pollutants the newest records were logged on 2026‑02‑10 at 19:00 UTC, so the data are fresh within the past three days; the exception is NO, whose latest entry dates back to 2024‑03‑11 11:00 UTC, indicating an older snapshot for that gas.

Across the recent measurements the observed values span a wide range. CO reaches a maximum of 1 020 µg/m³ while its minimum sits at 430 µg/m³, showing a spread of nearly six hundred units and a median around 725 µg/m³. NO₂ varies from 5.74 to 14.7 µg/m³ with a median near 10.2 µg/m³, whereas SO₂ ranges between 5.27 and 14.2 µg/m³ (median ≈ 9.7 µg/m³). PM₁₀ values are low but variable, from –1.0 to 19.15 µg/m³ with a median of about 9.1 µg/m³; the negative minimum reflects a data‑quality artifact rather than a physical reading. O₃ and PM₂.5 each have a single reported value—48.74 µg/m³ for ozone and 3.51 µg/m³ for fine particles—both recorded at the same recent timestamp.

The dataset therefore offers a fairly complete chemical profile for Varna, though coverage is uneven: CO, NO₂, SO₂ and PM₁₀ have multiple recent entries, while NO relies on an older record and O₃/PM₂.5 are represented by only one observation each. Because the data come from just two stations, conditions can differ across neighborhoods and times not 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 Varna is based on seven valid measurements and was updated within three days, with the latest refresh recorded at 2026‑02‑10 19:00 UTC. This snapshot reflects conditions at that specific time; air quality can differ across neighborhoods and change throughout the day, so values may not represent current or location‑specific conditions elsewhere in the city.

OpenAQ station rows