What is the air quality trend in Mount Greenwood?

Over the past 3 days, Mount Greenwood had an average AQI of 45 based on station measurements. The worst day was 2026-10-21 with AQI 55.

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
Moderate Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

45h

PM2.5 Station

45h · 285 stations

Temperature GFS model

8pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-10-21	55	52–57	13.9 µg/m³	7.1	4h	285
2026-10-20	51	28–70	13.4 µg/m³	1.1	24h	250
2026-10-19	30	21–41	7.1 µg/m³	3.4	17h	284

Back to Mount Greenwood Air Quality