Air quality in Cheshire, Connecticut, United States of America today
Mr. Duck’s Air Quality Score
Good air today for Cheshire, Connecticut, United States of America
This friendly indicator summarizes the latest city readings. For health guidance, please see: EPA AirNow or WHO.
Air quality today
The air quality in Cheshire, Connecticut is currently classified as Good. The primary pollutant measured today is PM2.5 (fine particles), with a recorded concentration of 3.03 µg/m³ based on five valid observations reported through OpenAQ.
No other pollutants reached measurable levels in the available data set. 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 Cheshire, Connecticut dataset contains five measured pollutants: PM1, PM2.5, relative humidity, temperature and UM003 (particle concentration). All data come from a single monitoring row, so the city’s coverage is limited to one station. The most recent reading for every pollutant was recorded on 2026-02-11 01:00 UTC, meaning the information is fresh within the last seven days.
PM1 registers at 0.9833333333333334 µg/m³ and PM2.5 at 3.0311666786670686 µg/m³; both values are identical across their minimum, median and maximum, indicating no observed variation in this snapshot. Relative humidity is reported as 20.963000043233237 % and temperature as 13.375333293279011 °C, again with a single consistent figure for each metric. The UM003 particle count stands at 275.2666659037272 particles/cm³, also without any spread.
Because the dataset consists of only one row, there is no range or distribution to describe across time or space; every pollutant shows a single point measurement rather than a series of values. This uniformity means that while the data are up‑to‑date, they capture conditions at just one location and moment, so citywide air quality may differ elsewhere or later in the day. Users should keep in mind that the limited station count restricts insight into spatial variability within Cheshire.
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 Cheshire, Connecticut reflects five valid measurements and was updated today (2026‑02‑11T01:00:00+00:00). This snapshot represents the most recent readings available from our monitoring network, but air quality can vary by location and time within the city, so conditions at any specific spot may differ from what is displayed here.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| Map | pm1 | 0.9833333333333334 | µg/m³ | 2026-02-11 01:00 UTC |
| Map | pm25 | 3.0311666786670686 | µg/m³ | 2026-02-11 01:00 UTC |
| Map | relativehumidity | 20.963000043233237 | % | 2026-02-11 01:00 UTC |
| Map | temperature | 13.375333293279011 | c | 2026-02-11 01:00 UTC |
| Map | um003 | 275.2666659037272 | particles/cm³ | 2026-02-11 01:00 UTC |