Air quality in Vratsa, Vratsa, Bulgaria today

Mr. Duck’s Air Quality Score

Moderate air today for Vratsa, Vratsa, 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 Vratsa today is classified as Moderate. The primary pollutant measured is PM2.5. Current readings show a PM2.5 concentration of 22.58 µg/m³ and a PM10 level of 10.24 µg/m³. These concentrations are expressed in micrograms per cubic meter.

A total of 24 valid measurements were used to calculate these values, and the data are presented through OpenAQ. The reported figures represent the average of the available observations for the reporting period. The Moderate category reflects the combined assessment of the measured pollutants for the current reporting interval. The dataset includes observations from local monitoring stations that feed into the OpenAQ platform. 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 OpenAQ feed for Vratsa currently provides measurements for carbon monoxide (CO), humidity, particulate matter (PM1, PM2.5, PM4, PM10), atmospheric pressure and temperature. Data for nitrogen oxides (NO, NO2), ozone (O3) and sulfur dioxide (SO2) are not present in the latest download. In total the dataset contains 27 rows of observations drawn from two monitoring sites. Twenty‑six of those rows have been updated within the last 30 days, while a single row is classified as older; none of the records are from today or the past three days. The most recent timestamps are 2026‑02‑10 19:00 UTC for CO at the AMS Railway Station and 2026‑02‑09 16:18 UTC for the other variables at Park DNA Vratsa.

Across the available pollutants the recorded values show a modest spread. PM10 varies from a low of 10.24 µg/m³ to a high of 27.77 µg/m³ with a median of 21.23 µg/m³, indicating that typical concentrations sit near the middle of that range. PM2.5, PM4 and PM1 display similar behaviour, each ranging roughly between 18 µg/m³ and 27 µg/m³ with medians around 22–23 µg/m³. Humidity is consistently high, recorded between 75.63 % and 83.23 % and peaking at 83.23 % at the Park DNA site. Pressure readings span 960.07 hPa to 971.39 hPa, with the maximum observed at the same park location, while temperature fluctuates from –0.21 °C to 4.52 °C, the coldest point also recorded at Park DNA.

The coverage is uneven: CO is reported from a single station, whereas the particulate and meteorological parameters come from three recent rows at Park DNA. Because most data are a day or two old and one row is older, the snapshot reflects conditions at specific places and times rather than a continuous city‑wide picture. Consequently, actual air quality in Vratsa may differ across neighborhoods or later in the 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 dataset for Vratsa includes 24 valid measurements and is Updated within 30 days. The latest data were recorded on 2026-02-10 at 19:00 UTC. This snapshot reflects conditions at the time of sampling; air quality can vary by location and time within the city. Users should consider these factors when interpreting the values presented.

OpenAQ station rows