What is the air quality trend in Imperial?

Over the past 7 days, Imperial had an average AQI of 56 based on station measurements. The worst day was 2026-10-15 with AQI 63.

How is Imperial air quality measured?

Air quality in Imperial 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 Imperial, United States

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

166h

PM2.5 Station

166h · 2 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-10-20	57	28–174	17.4 µg/m³	22h	2
2026-10-19	55	28–296	21.2 µg/m³	24h	3
2026-10-18	50	19–217	17.1 µg/m³	24h	3
2026-10-17	61	30–294	23.1 µg/m³	24h	2
2026-10-16	55	21–217	19.2 µg/m³	24h	2
2026-10-15	63	25–259	24.6 µg/m³	24h	2
2026-10-14	53	28–218	18.1 µg/m³	24h	2

Back to Imperial Air Quality