Air quality in Fieni, Romania today
Mr. Duck’s Air Quality Score
Good air today for Fieni, 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 Fieni is classified as Good today. The primary pollutant identified is PM10, with a measured concentration of 23.51 µg/m³ based on four valid observations reported through OpenAQ.
No additional pollutants are highlighted for this period, and the data set consists of four valid measurements. 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 record for Fieni draws on eight data rows collected at a single monitoring station, covering four measured pollutants: carbon monoxide (CO), nitrogen dioxide (NO₂), particulate matter ≤ 10 µm (PM₁₀) and sulfur dioxide (SO₂). For CO the most recent reading was recorded on 2026‑02‑10 19:00 UTC, with a value of 355.53 µg/m³; this is also the minimum, median and maximum for that pollutant, indicating only one valid observation in the current set. NO₂ shows a single measurement of 20.89959 µg/m³ at the same timestamp, again representing the full range of available data. PM₁₀ has three close‑spaced values – a minimum of 23.46045 µg/m³, a median of 23.48510 µg/m³ and a maximum of 23.50975 µg/m³ – all captured on 2026‑02‑10 19:00 UTC, giving a very narrow spread of about 0.05 µg/m³ across the observations. In contrast, SO₂ is only represented by an older entry from 2025‑11‑15 08:00 UTC with a placeholder value of –1.0 µg/m³, signalling that no recent valid measurement is available for this pollutant.
Overall, the dataset is fresh for three of the four pollutants, each updated within the last seven days, while SO₂ remains outdated. The single station provides complete coverage for CO, NO₂ and PM₁₀ but lacks current data for SO₂, so any assessment of sulfur dioxide levels in Fieni would be based on stale information. Because most pollutants have only one or a few observations, the reported values reflect point‑in‑time snapshots rather than broader temporal trends; conditions can therefore differ across locations within the city and at other 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 data shown for Fieni is based on four valid measurements and was refreshed within the past three days, with the latest update recorded at 2026‑02‑10 19:00 UTC. This snapshot reflects conditions at a specific time and place; air quality can differ across neighborhoods and throughout the day, so values may not represent the entire city’s current environment.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| DB-2 | no2 | 20.89959 | µg/m³ | 2026-02-10 19:00 UTC |
| DB-2 | pm10 | 23.50975 | µg/m³ | 2026-02-10 19:00 UTC |
| DB-2 | no2 | 20.89959 | µg/m³ | 2026-02-10 19:00 UTC |
| DB-2 | pm10 | 23.46045 | µg/m³ | 2026-02-10 19:00 UTC |