AQI

Whatcom Air Quality Index & Realtime Air Pollution

Live AQI
43(AQI-US)
Air Quality is
Good
PM2.5 :12.9µg/m³
PM10 :18.6µg/m³
Good
Moderate
Poor
Unhealthy
Severe
Hazardous
050100150200300301+
Good air quality mascot

Primary Air Pollutants Whatcom (Washington)

PM2.513µg/m³
PM2.5
Fine particles
PM1019µg/m³
PM10
Coarse particles
SO₂1µg/m³
SO₂
Sulphur dioxide
CO120µg/m³
CO
Carbon monoxide
NO₂2µg/m³
NO₂
Nitrogen dioxide
O₃99µg/m³
O₃
Ozone

Hourly forecast Whatcom (Washington)

Now9°
Clear sky
18:008°
Clear sky
19:007°
Clear sky
20:007°
Clear sky
21:005°
Clear sky
22:005°
Mostly clear
23:005°
Overcast
00:005°
Fog
01:005°
Fog
02:005°
Fog
03:005°
Moderate drizzle
04:004°
Slight rain
05:004°
Overcast
06:003°
Fog
07:004°
Partly cloudy
08:004°
Partly cloudy
09:004°
Partly cloudy
10:003°
Fog
11:003°
Overcast
12:004°
Partly cloudy
13:004°
Partly cloudy
14:005°
Overcast
15:005°
Overcast
16:004°
Overcast

Health Recommendations for Whatcom Residents

Based on current air quality: Good · AQI 43

Good
Air Purifier
Air PurifierTurn Off
Car Filter
Car FilterAdvisable
N95 Mask
N95 MaskAdvisable
Stay Indoor
Stay IndoorAdvisable

UV Index

1.8

Low

Safe to be outside. Minimal UV risk.

Wind

20.3 km/h

Moderate wind — noticeable and steady.

AQI Graph

Historical AQI Data Whatcom (Washington)

28
Min. AQIat 10:00 AM on 3rd Jun
49
Max. AQIat 1:00 AM on 3rd Jun
03-06-2026Time04-06-2026

United States Major Cities AQI Overview


Most Polluted Cities by AQI United States

119
Poor3x above Standard
93
Moderate2x above Standard
81
Moderate2x above Standard
79
Moderate1x above Standard
75
Moderate1x above Standard
75
Moderate3x above Standard
75
Moderate3x above Standard
73
Moderate2x above Standard
72
Moderate1x above Standard
67
Moderate1x above Standard
Last Updated: 03 Jun 2026, 22:43

Health Advice For People Living in Whatcom

0.6
Cigarettes
per day
Weekly4.2 Cigarettes
Monthly18 Cigarettes

Breathing the air in this location is equivalent to smoking 0.6 cigarettes a day.

Disclaimer: This cigarette-equivalent estimate is calculated using the average PM2.5 concentration from the past 24 hours, assuming constant exposure throughout that period.
Solutions for Whatcom Current AQI (US)
Air Purifier
Air PurifierTurn Off
Car Filter
Car FilterAdvisable
N95 Mask
N95 MaskAdvisable
Stay Indoor
Stay IndoorAdvisable
Must turn on the air purifier to enjoy fresh air.Get an Air Purifier

Prevent Health Problems: Understand Your Risks

Whatcom · Current air quality: Good · AQI 43

Low Trigger Risk

Headaches

Risk of Headaches symptoms is Low when AQI of Whatcom is Good (0-50).

Common signs

Some common signs are: Pressure or tightness around the forehead and temples, Sensitivity to light or smell, Fatigue or difficulty concentrating.

Do’s :
  • Choose indoor, clean indoor air when the AQI is elevated.
  • Stay hydrated and take short breaks from devices or harsh light if you are migraine-prone.
  • If you Make use of prescribed migraine meds, Keep close them accessible.
Don’ts :
  • Try not to do intense outdoor exercise during worse AQI periods.
  • Don’t ignore worsening symptoms that feel unusual for you.

Disclaimer: The health risks mentioned above are precautionary recommendations based on current AQI levels. While you may not experience immediate effects, prolonged exposure to air pollution can lead to these health issues over time. This is not medical advice. Please consult a clinician if you experience severe, unusual, or worsening symptoms.

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Air Quality FAQs at Whatcom, Washington

The current real-time AQI (US) level in Whatcom, Washington is 43 (Good). This was last updated recently.

The best AQI (US) level was generally lower during the early afternoon in the last 24 hours.

The worst AQI (US) level typically peaks during early morning or late evening hours due to temperature inversion.

The AQI (US) levels in Whatcom, Washington have been fluctuating throughout the last 24 hours depending on traffic and weather conditions.

Current AQI (US) levels are good for everyone. It's advised to adjust your outdoor activities based on personal sensitivity.