What is the air quality trend in Ames?

Over the past 7 days, Ames had an average AQI of 52 based on station measurements. The worst day was 2026-07-19 with AQI 67.

How is Ames air quality measured?

Air quality in Ames is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Ames, United States

Name: Ames Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Ames, United States.

Current AQI
Moderate CAMS model

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

74h

PM2.5 Station

74h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-21	45	18–105	12.6 µg/m³	11h	1
2026-07-20	43	5–82	12.2 µg/m³	8h	1
2026-07-19	67	28–176	22.9 µg/m³	14h	1
2026-07-18	66	12–178	24.9 µg/m³	10h	1
2026-07-17	52	17–82	14.1 µg/m³	8h	1
2026-07-16	49	17–75	12.8 µg/m³	12h	1
2026-07-15	48	19–89	13.2 µg/m³	11h	1

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