Air quality in Botevgrad, Sofia, Bulgaria today

Mr. Duck’s Air Quality Score

Unhealthy for sensitive groups for Botevgrad, Sofia, 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 today in Botevgrad, Sofia, Bulgaria is classified as USG. The primary pollutant identified is PM2.5 (fine particles). Current measurements show a PM2.5 concentration of 38.46 µg/m³ and a PM10 concentration of 40.89 µg/m³. These figures are based on nine valid measurements. Data is shown via OpenAQ.

The reported PM2.5 value matches its reference level of 38.46 µg/m³, and the PM10 value matches its reference level of 40.89 µg/m³. All numbers represent the latest snapshot available from the dataset. No other pollutant data are reported for this period. These measurements are part of the current Duck score assessment. 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 Botevgrad air‑quality feed draws from a single monitoring site that has contributed 17 data rows. Nine of those rows were recorded within the last 30 days, while the remaining eight are older, so the most recent measurements for each pollutant are from 2026‑02‑10 22:28 UTC (CO, PM2.5, PM4, humidity) or 22:29 UTC (NO₂, PM1, PM10, SO₂). The dataset currently provides values for carbon monoxide, nitrogen dioxide, particulate matter in four size fractions (PM1, PM2.5, PM4, PM10), sulfur dioxide and relative humidity. Measurements for pressure and temperature are listed among the monitored parameters but are not present in the latest rows.

Across the recent records carbon monoxide ranges from a low of 186.01 µg/m³ to a high of 298.27 µg/m³, with a median near 242 µg/m³, indicating a fairly wide spread. The particulate series all sit in a comparable band: PM1 varies between 23.34 and 35.63 µg/m³ (median ≈ 29.5), PM2.5 between 25.26 and 38.46 µg/m³ (median ≈ 31.9), PM4 between 25.28 and 39.16 µg/m³ (median ≈ 32.2) and PM10 between 24.93 and 40.89 µg/m³ (median ≈ 32.9). Nitrogen dioxide is recorded from 0 to 9.99 µg/m³ (median ≈ 5), while sulfur dioxide registers only at 0 µg/m³ in all recent entries. Humidity is consistently high at 88.81 % for the available reading.

The coverage is uneven: while the particulate and gas pollutants have recent values, pressure and temperature are absent, and half of the rows are older than a month, meaning the snapshot may not capture all temporal variations in Botevgrad’s air quality.

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 dataset for Botevgrad includes nine valid measurements and is updated within 30 days, with the latest update recorded on 2026‑02‑10 at 22:29 UTC. These values reflect the conditions captured by the monitoring network at the time of sampling. Please note that air quality can vary by location and time within the city, so this snapshot may not represent all areas or moments.

OpenAQ station rows