Air quality in Billings County, North Dakota, United States of America today
Mr. Duck’s Air Quality Score
Good air today for Billings County, North Dakota, 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 Billings County, North Dakota is classified as Good today. The primary pollutant identified is PM2.5 (fine particles), with a measured reference value of 1.0 µg/m³ based on three valid observations.
Data are shown via OpenAQ and reflect the current conditions for this location. 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 for Billings County includes three measured pollutants—ozone (O₃), fine particulate matter (PM₂.5) and sulfur dioxide (SO₂)—all reported from a single monitoring location, Theodore Roosevelt N. In total there are three rows of observations, one for each pollutant, and every row carries the same timestamp of 2026‑02‑10 23:00 UTC, indicating that the most recent measurements were all captured on the same day and are therefore fresh within the past week.
For ozone the dataset shows a single value of 0.036 ppm, which is both the minimum and maximum recorded amount, as well as the median and the 10th‑90th percentile. The PM₂.5 reading is likewise uniform at 1.0 µg/m³ across all statistical summaries, while sulfur dioxide registers consistently at 0.0006 ppm. Because each pollutant has only one reported figure, there is no observed spread or variability in the data; the range for every contaminant collapses to a single point.
The coverage is limited to just one monitoring site, so spatial representation across Billings County is minimal and conditions elsewhere may differ from those captured at Theodore Roosevelt N. Nevertheless, the dataset’s recency—each measurement updated within seven days—means that the values reflect the most current snapshot available for the county, even though the lack of multiple stations or historical depth restricts broader temporal or geographic insight.
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 reflect three valid measurements and were updated within 3 days, with the most recent reading recorded at 2026‑02‑10 23:00 UTC. This snapshot provides a brief view of current conditions, but air quality can vary across different neighborhoods and times of day within Billings County, so local levels may differ from what is displayed here.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| Theodore Roosevelt N | o3 | 0.036 | ppm | 2026-02-10 23:00 UTC |
| Theodore Roosevelt N | pm25 | 1.0 | µg/m³ | 2026-02-10 23:00 UTC |
| Theodore Roosevelt N | so2 | 0.0006 | ppm | 2026-02-10 23:00 UTC |