What is the air quality trend in West Falls Church?

Over the past 8 days, West Falls Church had an average AQI of 79 based on station measurements. The worst day was 2026-07-17 with AQI 169.

How is West Falls Church air quality measured?

Air quality in West Falls Church 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 West Falls Church, United States

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

Historical PM2.5 and AQI trend from monitoring stations near West Falls Church, United States.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

167h

PM2.5 Station

167h · 1 station

Temperature GFS model

28pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	Hours	Stations
2026-07-22	25	25–25	6.0 µg/m³	1h	1
2026-07-21	52	28–75	14.3 µg/m³	24h	30
2026-07-20	68	59–85	20.4 µg/m³	24h	31
2026-07-19	63	36–86	18.2 µg/m³	24h	32
2026-07-18	128	58–161	48.8 µg/m³	24h	34
2026-07-17	169	57–216	99.7 µg/m³	24h	35
2026-07-16	81	53–222	30.7 µg/m³	24h	33
2026-07-15	52	43–81	13.4 µg/m³	22h	34

Back to West Falls Church Air Quality