Air quality in Cedar Rapids, Iowa, United States of America today
Mr. Duck’s Air Quality Score
Good air today for Cedar Rapids, Iowa, 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 Cedar Rivers today is classified as Good. The primary pollutant measured is PM2.5, with a reported concentration of 4.6 µg/m³ based on three valid observations from OpenAQ data.
Overall conditions meet the Good category criteria, and the available measurements focus on fine particulate matter (PM2.5) at the stated level. 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
Cedar Rapids’ OpenAQ feed contains data for four pollutants – carbon monoxide (CO), ozone (O₃), fine particulate matter (PM2.5) and sulfur dioxide (SO₂). The dataset is built from ten rows of measurements collected at three monitoring stations, giving a modest spatial snapshot of the city’s air quality.
The most recent values are fairly fresh for PM2.5, SO₂ and CO, with the latest timestamps on 2026‑02‑11 00:00 UTC (PM2.5), 2026‑02‑10 23:00 UTC (SO₂) and 2019‑01‑03 11:00 UTC (CO). Ozone is older, last updated on 2025‑11‑03 10:00 UTC. Across the ten rows, seven entries are classified as “old” (more than 30 days old), three are within the past week and none are unknown or missing. This means that while some recent measurements exist, a large portion of the data reflects conditions from weeks or months ago.
PM2.5 values range from 4.2 to 9.0 µg/m³, with a median of about 4.9 µg/m³ and the 10th‑percentile near 4.36 µg/m³, indicating that most recent readings cluster toward the lower end of the observed spread. Ozone concentrations vary between 0.012 and 0.059 ppm, with a median of 0.0355 ppm; the distribution is broader, as shown by a 10th‑percentile of roughly 0.0167 ppm and a 90th‑percentile near 0.0543 ppm. Sulfur dioxide is consistently low, recorded between 0.0 and 0.0003 ppm, with a median of 0.00015 ppm. Carbon monoxide appears only as a single value (0.2 ppm) from an older record.
Overall, the dataset offers limited but concrete snapshots for each pollutant; however, the predominance of older rows means that current conditions may 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 data shown for Cedar Raps, Iowa reflects three valid measurements and was Updated today (last refreshed at 2026‑02‑11T00:00:00+00:00). These values represent a snapshot from the monitoring network and may not capture short‑term spikes or localized conditions. Air quality can vary by location and time within the city, so individual experiences may differ from the reported figures.
OpenAQ station rows
| Station | Parameter | Value | Unit | Last updated |
|---|---|---|---|---|
| PUBLIC HEALTH 4 | pm25 | 9.0 | µg/m³ | 2018-02-28 06:00 UTC |
| PUBLIC HEALTH | co | 0.2 | ppm | 2019-01-03 11:00 UTC |
| PUBLIC HEALTH | o3 | 0.012 | ppm | 2025-11-03 10:00 UTC |
| PUBLIC HEALTH | pm25 | 4.9 | µg/m³ | 2026-02-10 23:00 UTC |
| PUBLIC HEALTH | so2 | 0.0 | ppm | 2026-02-10 23:00 UTC |
| PUBLIC HEALTH | o3 | 0.059 | ppm | 2024-06-13 20:00 UTC |
| PUBLIC HEALTH | pm25 | 4.2 | µg/m³ | 2024-06-13 20:00 UTC |
| PUBLIC HEALTH | so2 | 0.0003 | ppm | 2024-06-13 20:00 UTC |
| MCKINLEY STEAM | pm25 | 7.2 | µg/m³ | 2025-10-27 17:00 UTC |
| MCKINLEY STEAM | pm25 | 4.6 | µg/m³ | 2026-02-11 00:00 UTC |