Air quality in Alessandria, Piedmont, Italy today

Mr. Duck’s Air Quality Score

Good air today for Alessandria, 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 Alessandria today is classified as Good. The primary pollutant measured is PM2.5, with a recorded concentration of 5.0 µg/m³. Additional monitoring shows PM10 at 7.0 µg/m³, based on five valid observations reported through OpenAQ.

Overall conditions meet the criteria for a Good rating according to the provided assessment. 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 Alessandria air‑quality dataset currently includes four measured pollutants – nitrogen dioxide (NO₂), ozone (O₃), particulate matter 10 µm or smaller (PM₁₀) and particulate matter 2.5 µm or smaller (PM₂.₅). The data come from five individual rows, representing two monitoring stations that feed into the OpenAQ network.

All of the latest readings are recent: the most recent NO₂ and O₃ values were recorded on 2026‑02‑07 at 09:00 UTC, while the PM₁₀ and PM₂.₅ measurements were logged a little earlier on the same day at 07:00 UTC. Each pollutant’s “last updated” timestamp falls within the last seven days, indicating that the dataset is being refreshed regularly.

The numeric spread for each contaminant is narrow. NO₂ values range from a minimum of 24 µg/m³ to a maximum of 27 µg/m³, with a median of 25.5 µg/m³ and the 10th‑percentile at 24.3 µg/m³ and the 90th‑percentile at 26.7 µg/m³. O₃ is constant across its single row at 3 µg/m³, as are PM₁₀ (7 µg/m³) and PM₂.₅ (5 µg/m³). This limited variability reflects the small number of observations rather than a broad picture of city‑wide conditions.

Because only two stations contribute data, spatial coverage is modest; concentrations can differ across neighborhoods or at different times of day. The dataset’s freshness and the tight numeric ranges provide a snapshot of recent air quality at the monitored sites, but they do not capture the full diversity of conditions that may exist throughout Alessandria.

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 Alessandria is based on five valid measurements and was refreshed recently, Updated within 7 days; the latest update occurred at 2026‑02‑07T09:00:00+00:00. This snapshot reflects conditions recorded at that time, but air quality can differ across neighborhoods and change throughout the day, so values may not represent every location or moment in the city.

OpenAQ station rows