What is the air quality trend in Mount Greenwood?

Over the past 8 days, Mount Greenwood had an average AQI of 47 based on station measurements. The worst day was 2026-08-05 with AQI 54.

How is Mount Greenwood air quality measured?

Air quality in Mount Greenwood 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 Mount Greenwood, United States

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

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

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

165h

PM2.5 Station

165h · 211 stations

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-08-08	37	37–38	9.0 µg/m³	—	3h	211
2026-08-07	54	38–63	14.2 µg/m³	2.4	24h	206
2026-08-06	53	40–65	13.8 µg/m³	2.9	24h	198
2026-08-05	54	50–57	13.3 µg/m³	3.6	24h	188
2026-08-04	47	38–52	11.3 µg/m³	2.7	24h	181
2026-08-03	38	28–48	9.2 µg/m³	1.6	24h	166
2026-08-02	46	43–51	11.1 µg/m³	1.7	24h	160
2026-08-01	47	40–54	11.5 µg/m³	1.4	18h	158

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