Air quality in Boulder

Air quality index (AQI) and PM2.5 air pollution in Boulder

Last update at (local time)

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Air Quality Data contributor(s)

Station(s) operated by

Contributors

32

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Weather

What is the current weather in Boulder?

Weather icon
WeatherClear sky
Temperature23°F
Humidity71%
Wind0 mp/h
Pressure30 Hg

live aqi city ranking

Real-time USA city ranking

#cityUS AQI
1 Los Molinos, California

173

2 Corning, California

166

3 Hamilton City, California

159

4 Gridley, California

157

5 Belgrade, Montana

143

6 Orleans, California

135

7 Plains, Montana

122

8 Orland, California

112

9 Rice Lake, Wisconsin

112

10 Washington Park, Illinois

112

(local time)

SEE WORLD AQI RANKING

live Boulder aqi ranking

Real-time Boulder air quality ranking

#stationUS AQI
1 Bean Mountain Lane

89

2 13th Street

85

3 Canyon Pointe Park

84

4 700 Walnut Street

83

5 10th Street

81

6 Grape Avenue

79

7 Walnut Street

79

8 Grove Street

77

9 South 42nd Street

77

10 Chautauqua Heights, Cascade Avenue

76

(local time)

SEE WORLD AQI RANKING

US AQI

73

live AQI index
Moderate

Human face indicating AQI level

Overview

What is the current air quality in Boulder?

Air pollution levelAir quality indexMain pollutant
Moderate 73 US AQIPM2.5
PollutantsConcentration
PM2.5
22.4µg/m³
PM10
20µg/m³
!

PM2.5

x4.5

PM2.5 concentration in Boulder is currently 4.5 times the WHO annual air quality guideline value

Health Recommendations

How to protect from air pollution in Boulder?

An open window iconClose your windows to avoid dirty outdoor air
A man cycling iconSensitive groups should reduce outdoor exercise

Forecast

Boulder air quality index (AQI) forecast

DayPollution levelWeatherTemperatureWind
Sunday, Nov 27

Good 9 US AQI

Human face indicating AQI level
Weather icon50°24.8°
Wind rotating 243 degree

11.2 mp/h

Monday, Nov 28

Good 8 US AQI

Human face indicating AQI level
Weather icon24.8°12.2°
Wind rotating 276 degree

8.9 mp/h

Tuesday, Nov 29

Good 40 US AQI

Human face indicating AQI level
Weather icon32°12.2°
Wind rotating 245 degree

6.7 mp/h

Today

Moderate 73 US AQI

Human face indicating AQI level
Weather icon50°32°
Wind rotating 239 degree

11.2 mp/h

Thursday, Dec 1

Good 5 US AQI

Human face indicating AQI level
Weather icon50°24.8°
Wind rotating 260 degree

31.3 mp/h

Friday, Dec 2

Good 5 US AQI

Human face indicating AQI level
Weather icon41°24.8°
Wind rotating 247 degree

6.7 mp/h

Saturday, Dec 3

Good 5 US AQI

Human face indicating AQI level
Weather icon44.6°32°
Wind rotating 292 degree

4.5 mp/h

Sunday, Dec 4

Good 5 US AQI

Human face indicating AQI level
Weather icon50°32°
Wind rotating 107 degree

4.5 mp/h

Monday, Dec 5

Good 5 US AQI

Human face indicating AQI level
Weather icon41°28.4°
Wind rotating 282 degree

15.7 mp/h

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Historical

Historic air quality graph for Boulder

How to best protect from air pollution?

Reduce your air pollution exposure in Boulder

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