Air quality in Municipal Unit of Pefki, Attica, Greece today

Mr. Duck’s Air Quality Score

Good air today for Municipal Unit of Pefki, Attica, Greece

⚠️ 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 the Municipal Unit of Pefki is classified as Good today. The main pollutant identified is PM2.5, fine particulate matter measured alongside PM10. According to the latest data shown via OpenAQ, the PM2.5 reference value stands at 9.0 µg/m³ and the PM10 reference value is 15.0 µg/m³, based on eight valid measurements.

These figures reflect the current assessment for this location without implying any trend or forecast. 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 Municipal Unit of Pefki’s air‑quality feed includes four measured pollutants – nitrogen dioxide (NO2), ozone (O3), particulate matter 10 µm or less (PM10) and particulate matter 2.5 µm or less (PM2.5). All data come from a single monitoring site, identified as LYKOVRISI, which contributed eight recent rows of observations. Each pollutant’s most recent reading was recorded on 2026‑02‑10 at 20:00 UTC, and the system flags these updates as having been refreshed within the past three days, indicating that the dataset is current for this location.

The values show a very narrow spread for NO2, with every entry reporting exactly 10.0 µg/m³; the median, minimum and maximum are all identical, suggesting little variability in the short term at this station. Ozone levels hover around the low‑sixties, ranging from 61.0 to 62.0 µg/m³ with a median of 61.5 µg/m³, while the 10th and 90th percentiles (approximately 61.1 and 61.9 µg/m³) confirm a tight distribution. Particulate matter shows slightly broader ranges: PM10 values run from 7.0 to 15.0 µg/m³ with a median of 11.0 µg/m³, and the inter‑percentile spread (about 7.8 to 14.2 µg/m³) indicates modest fluctuation. PM2.5 readings are clustered between 6.0 and 9.0 µg/m³, median 7.5 µg/m³, with percentiles spanning roughly 6.3 to 8.7 µg/m³.

Because the dataset derives from only one monitoring point, it captures conditions at LYKOVRISI but does not reflect possible spatial differences across the wider Pefki area. The recent timestamps mean the figures represent a snapshot of air quality on 10 February, yet variations that occur elsewhere or at other times are not covered by this limited set of rows.

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 the Municipal Unit of Pefki is based on eight valid measurements and was refreshed recently, having been updated within three days (last update: 10 Feb 2026 20:00 UTC). These readings provide a snapshot of current conditions, but air quality can differ across neighborhoods and change throughout the day, so local variations may not be fully captured in this summary.

OpenAQ station rows