Air quality in Biella, Piedmont, Italy today

Mr. Duck’s Air Quality Score

Good air today for Biella, Piedmont, 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 Biella today is classified as Good. The primary pollutant measured is PM2.5 (fine particles).

Four valid measurements were recorded, showing a PM2.5 reference value of 3.0 µg/m³ and a PM10 reference value of 4.0 µg/m³. These figures reflect the current conditions reported through OpenAQ. 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 data set for Biella includes five measured pollutants – nitrogen dioxide (NO2), ozone (O3), particulate matter 10 µm or less (PM10), particulate matter 2.5 µm or less (PM2.5) and sulphur dioxide (SO2). All values come from a single monitoring location, the Biella – Sturzo station, so the dataset contains one row per pollutant.

The most recent observations are from 7 February 2026 for NO2, O3, PM10 and PM2.5, with timestamps at 09:00 UTC for the gases and 07:00 UTC for the particles. SO2 is the only measurement that dates back to 5 January 2021, making it considerably older than the other four pollutants. Because every pollutant has exactly one recorded value, there is no spread in the data – each metric shows a single figure that also serves as its minimum, median and maximum: NO2 at 28 µg/m³, O3 at 23 µg/m³, PM10 at 4 µg/m³, PM2.5 at 3 µg/m³ and SO2 at 19 µg/m³.

Two practical observations follow from these numbers. First, the dataset provides a complete snapshot for four of the five pollutants within the last week, indicating very fresh coverage for those substances, while SO2 remains outdated by more than five years. Second, because only one monitoring site contributes data, there is no variability to assess how concentrations differ across neighbourhoods or times of day; the reported values represent a single point in space and time rather than a city‑wide average. Consequently, while the current figures give an immediate picture of air quality at the Sturzo location, they do not capture broader spatial or temporal patterns that may exist elsewhere in Biella.

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 Biella reflects four valid measurements and is marked as Updated within 7 days, with the latest values recorded on 2026‑02‑07T09:00:00+00:00. This snapshot provides a recent overview of city‑wide air quality, but conditions can differ across neighborhoods and change throughout the day, so local variations may not be captured in these figures.

OpenAQ station rows