Air quality in Bay City, Michigan, United States of America today
Mr. Duck’s Air Quality Score
Moderate air today for Bay City, Michigan, 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 Bay City, Michigan is currently classified as Moderate. The primary pollutant identified is PM2.5 (fine particles), with a measured concentration of 22.0 µg/m³. This assessment is based on a single valid measurement reported through OpenAQ.
Data for other pollutants are not available at this time. 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 current station data listed for this city is focused on particulate matter (PM). Only one monitoring record is available for Bay City, and it reports a PM2.5 concentration of 22.0 µg/m³. The measurement was last updated on 2026-02-10 23:00 UTC, which falls within the “updated within 7 days” freshness category, indicating that the most recent data is relatively current.
Because there is just a single row, the dataset does not provide a range of values; the minimum, median, and maximum are all identical at 22.0 µg/m³, and both the 10th and 90th percentiles match this figure as well. This uniformity means there is no observable spread or variability in the reported PM2.5 levels for Bay City from the available source. With only one station contributing data, coverage across pollutants is limited to PM2.5 alone, and there are no older or unknown‑timestamp entries to compare against. Consequently, while the snapshot is fresh, it represents a very narrow view of air quality that can differ across neighborhoods and times of day.
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 current report for Bay City is based on a single valid measurement and was refreshed recently, with data “Updated within 3 days” as of the last update on 2026‑02‑10T23:00:00+00:00. This snapshot reflects conditions at one monitoring point at that time; air quality can differ across neighborhoods and change throughout the day, so local variations may not be captured in this brief overview.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| Bay City | pm25 | 22.0 | µg/m³ | 2026-02-10 23:00 UTC |