Air quality in Frosinone, Lazio, Italy today

Mr. Duck’s Air Quality Score

Moderate air today for Frosinone, Lazio, Italy

⚠️ 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 Frosinone today is classified as Moderate. The primary pollutant identified is PM2.5 (fine particles). Current measurements show a PM2.5 concentration of 14.0 µg/m³ and a PM10 level of 27.0 µg/m³, based on eleven valid observations collected through OpenAQ.

These values reflect the latest available data 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 record for Frosinone draws on 19 data rows collected at four monitoring sites, covering eight pollutants: carbon monoxide (CO), nitrogen oxides (NO, NO₂, NOX), ozone (O₃), particulate matter 10 µm and 2.5 µm (PM10, PM2.5) and sulphur dioxide (SO₂). For most substances the latest observations are from early February 2026, meaning they were updated within the past week; only SO₂ is based on an older entry dated 30 May 2024.

Across the recent data set CO peaks at 1 800 µg/m³ (recorded at Frosinone Scalo) while its minimum value sits at 200 µg/m³, giving a ten‑fold spread and a median of 1 000 µg/m³. NO₂ shows a much tighter distribution, ranging from 6 to 78 µg/m³ with a median of 21.5 µg/m³, whereas O₃ varies between 12 and 66 µg/m³ (median 39 µg/m³). Particulate matter is the most consistent: PM10 values lie between 19 and 27 µg/m³ (median 23 µg/m³) and PM2.5 is a single reported figure of 14 µg/m³. NO and NOX are both low‑level pollutants, each spanning roughly one order of magnitude (NO: 1–9 µg/m³; NOX: 9–42 µg/m³) with medians near the lower end of their ranges.

The dataset is unevenly balanced: CO, NO₂, NO, NOX, O₃ and PM10 each have four recent rows, while PM2.5 appears in only one row and SO₂ is represented by a single outdated entry. Consequently, while the most current measurements give a snapshot of conditions across several sites, gaps remain for finer‑grained temporal or spatial analysis, especially for sulphur dioxide and fine particulate matter.

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 Frosinone are based on 11 valid measurements and have been updated within 3 days (last refresh: 2026‑02‑09T03:00:00+00:00). This snapshot reflects conditions recorded at specific monitoring points and times; air quality can differ across neighborhoods and fluctuate throughout the day, so values may not represent every location or moment in the city.

OpenAQ station rows