Air quality in Bismarck, North Dakota, United States of America today

Mr. Duck’s Air Quality Score

Good air today for Bismarck, North Dakota, United States of America

⚠️ 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 Bismarck today is classified as Good. The primary pollutant measured is PM2.5 (fine particles). According to the latest data, the PM2.5 concentration is 2.3 µg/m³ and the accompanying PM10 level is 17.0 µg/m³, based on seven valid observations reported through OpenAQ.

These values indicate that pollutant concentrations are within low ranges for the area. 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 Bismarck air‑quality feed draws from a single monitoring site that reports eight separate pollutant measurements, one for each of the common criteria gases and particulates: carbon monoxide (CO), nitrogen oxide (NO), nitrogen dioxide (NO₂), total nitrogen oxides (NOX), ozone (O₃), fine particulate matter (PM₂.5), coarse particulate matter (PM₁₀) and sulfur dioxide (SO₂). In total there are eight data rows, each representing the most recent reading for one of those substances.

Most of the values have been refreshed within the past week; the latest timestamps for NO, NO₂, NOX, O₃, PM₁₀, PM₂.5 and SO₂ all show an update time of 2026‑02‑11 00:00 UTC, indicating that those six pollutants are being reported on a very recent basis. Carbon monoxide is the exception, with its most recent entry dated 2023‑09‑12 15:00 UTC, which means the CO reading is considerably older than the others.

Across the eight measurements the data are remarkably uniform: each pollutant has only one recorded value, so there is no spread to describe. The median and extreme values coincide for every substance – CO sits at 0.2 ppm, NO at 0.0007 ppm, NO₂ at 0.0017 ppm, NOX at 0.0024 ppm, O₃ at 0.033 ppm, PM₁₀ at 17.0 µg/m³, PM₂.5 at 2.3 µg/m³ and SO₂ at 0.0004 ppm. Because the dataset consists of a single station, spatial coverage is limited; conditions elsewhere in Bismarck may differ from what these point measurements capture. The overall picture is one of recent, consistent reporting for most pollutants but with an outdated CO value and no variation across time or location within the city’s current data set.

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 Bismarck reflects seven valid measurements and was updated today (2026‑02‑11T00:00:00+00:00). These values represent a snapshot of the city’s air quality at the time of collection; conditions can differ across neighborhoods and may change throughout the day. Use this information as a general reference rather than a precise, location‑specific forecast.

OpenAQ station rows