What is the air quality trend in Holt?

Over the past 21 days, Holt had an average AQI of 32 based on station measurements. The worst day was 2026-08-20 with AQI 62.

How is Holt air quality measured?

Air quality in Holt 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 Holt, United States

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

193h

PM2.5 Station

193h · 1 station

Temperature GFS model

80pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-09-05	26	11–50	6.2 µg/m³	9h	1
2026-09-04	24	10–40	5.9 µg/m³	7h	1
2026-09-03	33	19–51	8.0 µg/m³	7h	1
2026-09-02	47	24–67	12.2 µg/m³	7h	1
2026-09-01	46	28–68	11.6 µg/m³	8h	1
2026-08-31	34	14–48	8.2 µg/m³	11h	1
2026-08-30	32	21–40	7.7 µg/m³	13h	1
2026-08-29	31	9–58	7.7 µg/m³	10h	1
2026-08-28	26	16–41	6.3 µg/m³	16h	1
2026-08-27	29	10–44	7.0 µg/m³	7h	1
2026-08-26	32	2–53	7.7 µg/m³	10h	1
2026-08-25	28	20–40	6.6 µg/m³	12h	1
2026-08-24	19	5–40	4.6 µg/m³	7h	1
2026-08-23	38	20–62	9.8 µg/m³	7h	1
2026-08-22	46	5–92	12.7 µg/m³	9h	1
2026-08-21	44	14–76	11.6 µg/m³	13h	1
2026-08-20	62	24–109	18.6 µg/m³	10h	1
2026-08-19	28	15–61	7.0 µg/m³	9h	1
2026-08-18	28	17–52	6.8 µg/m³	8h	1
2026-08-17	21	9–30	4.9 µg/m³	12h	1
2026-08-16	9	9–9	2.2 µg/m³	1h	1

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