Air Quality in Merrifield, United States

Partly Cloudy
26.8°C · 53.8% humidity
26.8°
Feels 26.8°
34
Good
Air quality is satisfactory. Enjoy outdoor activities.
27 stations

Nearby Monitoring Stations

AQI Forecast
27 4pm
27
27
34 7pm
32
38
30 10pm
29
28
28 1am
28
25
25 4am
25
25
25 7am
27
25
25 10am
25
24
24 1pm
25
25
AD 728×90

Air Quality Index Trend

47h · 3 stn

Merrifield's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

53.8%
Humidity
18.6 km/h
Wind E
1013.6 hPa
Pressure
2.9
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
34
8.18 µg/m³
PM10
25
27.45 µg/m³
050100150200300500

What is the weather forecast for Merrifield?

Temperature & Precipitation

PM2.5 Trend

47h · 3 stations
PM2.58.18 µg/m³ ✓ WHO
Good
PM1027.45 µg/m³
Good
UV INDEX2.9
Moderate
AD 300×250
Station readings (27 stations within 25 km)
8.18
Median
8.15
Average
4.8
Low
12.1
High
PM2.5 µg/m³ · Model: 12.85 · Bias: +4.7
Both models agree Avg diff: 3.3°C

Where are air quality stations near Merrifield?

30
3414 Nebraska Ave NW
14.1 km PM2.5: 7.2 µg/m³
39
Aurora Hills Visitor Center, Northern Virginia, USA
14.6 km PM2.5: 9.4 µg/m³
28
Lee District Park - Fairfax County, Northern Virginia, USA
15.4 km PM2.5: 6.7 µg/m³
34
GW Milken Institute School of Public Health
15.5 km PM2.5: 8.2 µg/m³
45
Aslin
17.4 km PM2.5: 10.9 µg/m³
53
901 G St NW
17.7 km PM2.5: 12.9 µg/m³
34
Center City Shaw Campus
18.1 km PM2.5: 8.2 µg/m³
34
400 Virginia Ave SW
18.1 km PM2.5: 8.2 µg/m³
48
Southwest Library
18.3 km PM2.5: 11.6 µg/m³
57
"2000 Half St SW, Washington Matthew Henson Earth Conservation Center"
18.7 km PM2.5: 15.1 µg/m³

What cities are near Merrifield?

34 Idylwood 34 West Falls Church 34 Vienna 34 Tysons 33 Annandale 34 Oakton 34 Fairfax 35 McLean 35 Baileys Crossroads 34 Wolf Trap
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-21T23:15 UTC.