Air quality in Vulcan, Romania today
Mr. Duck’s Air Quality Score
Good air today for Vulcan, Romania
This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.
Air quality today
The air quality in Vulcan is classified as Good today. The primary pollutant identified is PM10, with a measured reference value of 22.21 µg/m³. Three valid measurements were recorded to support this assessment.
Data are shown via OpenAQ and reflect the current conditions for the city. 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 air‑quality feed for Vulcan includes three measured pollutants – nitrogen dioxide (NO₂), sulphur dioxide (SO₂) and particulate matter ≤ 10 µm (PM₁₀). Data come from five recent rows collected at two monitoring stations, all of which were last updated on 2026-02-10 19:00 UTC, so the information is current within the past week.
For NO₂ the recorded values span from a minimum of about 8.5 µg/m³ to a maximum of 20.1 µg/m³, with a median of roughly 14.3 µg/m³ and the central 80 % of observations lying between 9.7 µg/m³ (10th percentile) and 18.9 µg/m³ (90th percentile). SO₂ shows a narrower spread: values range from 4.45 µg/m³ up to 14.9 µg/m³, the median sits near 9.7 µg/m³, and the 10th‑90th percentile band runs from about 5.5 µg/m³ to 13.8 µg/m³. PM₁₀ is represented by a single reading of 22.21 µg/m³, which therefore serves as its minimum, median, maximum and both percentiles.
The dataset highlights uneven coverage across pollutants: while NO₂ and SO₂ each have multiple observations allowing an assessment of variability, PM₁₀ is captured only once, limiting insight into its typical range. All rows are recent, so the snapshot reflects conditions on a single day rather than longer‑term trends. Because measurements come from just two stations, local variations within Vulcan may not be fully represented, and air quality can differ across neighborhoods and times 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 current dataset for Vulcan includes three valid measurements and was refreshed recently, with the latest update recorded on 2026‑02‑10 at 19:00 UTC; it is marked as Updated within 3 days. These values represent a snapshot of conditions at the time of collection and may not reflect variations across different neighborhoods or moments throughout the day, so local air quality can differ from what is shown here.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| RO0158A | no2 | 8.49278728 | µg/m³ | 2022-06-20 04:00 UTC |
| RO0158A | so2 | 14.89257575 | µg/m³ | 2022-03-13 04:00 UTC |
| HD-5 | no2 | 20.07228 | µg/m³ | 2026-02-10 19:00 UTC |
| HD-5 | pm10 | 22.21277 | µg/m³ | 2026-02-10 19:00 UTC |
| HD-5 | so2 | 4.45098 | µg/m³ | 2026-02-10 19:00 UTC |