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Air quality in Boulder

Air quality index (AQI⁺) and PM2.5 air pollution in Boulder • 138 Followers • 01:00, Sep 28 Local time

US AQI⁺

Good

Main pollutant:

O₃

52 µg/m³

18°

5 km/h

69 %

Hourly forecast

Boulder air quality index (AQI⁺) forecast

Now

18°

km/h

69%

02:00

17°

km/h

75%

03:00

16°

km/h

80%

04:00

16°

km/h

83%

05:00

15°

km/h

89%

06:00

15°

km/h

83%

07:00

15°

km/h

85%

08:00

16°

km/h

82%

09:00

17°

km/h

74%

10:00

19°

km/h

65%

11:00

18°

km/h

65%

12:00

21°

km/h

56%

13:00

21°

km/h

55%

14:00

21°

km/h

49%

15:00

21°

km/h

51%

16:00

20°

km/h

57%

17:00

19°

km/h

62%

18:00

17°

km/h

73%

19:00

17°

km/h

80%

20:00

17°

km/h

75%

21:00

17°

km/h

82%

22:00

16°

km/h

88%

23:00

17°

km/h

86%

Tue

00:00

16°

km/h

90%

01:00

15°

km/h

89%

02:00

15°

km/h

93%

03:00

15°

km/h

89%

04:00

16°

km/h

78%

05:00

16°

km/h

75%

06:00

80%

16°

km/h

77%

07:00

90%

15°

km/h

80%

08:00

90%

15°

km/h

87%

09:00

80%

14°

km/h

87%

10:00

15°

km/h

84%

11:00

80%

15°

km/h

80%

12:00

80%

15°

km/h

79%

13:00

16°

km/h

69%

14:00

18°

km/h

59%

15:00

20°

km/h

49%

16:00

20°

km/h

48%

17:00

20°

km/h

49%

18:00

19°

km/h

52%

19:00

18°

km/h

57%

20:00

18°

km/h

57%

21:00

18°

km/h

59%

22:00

18°

km/h

61%

23:00

17°

km/h

63%

Wed

00:00

17°

km/h

60%

01:00

16°

km/h

64%

02:00

16°

km/h

68%

03:00

16°

km/h

71%

04:00

15°

km/h

76%

05:00

14°

km/h

80%

06:00

14°

km/h

77%

07:00

13°

km/h

64%

08:00

16°

km/h

57%

09:00

17°

km/h

49%

10:00

18°

km/h

45%

11:00

20°

km/h

39%

12:00

21°

km/h

37%

13:00

20°

km/h

40%

14:00

21°

km/h

35%

15:00

21°

km/h

28%

16:00

21°

km/h

24%

17:00

21°

km/h

24%

18:00

19°

km/h

31%

19:00

15°

km/h

38%

20:00

15°

km/h

42%

21:00

14°

km/h

44%

22:00

13°

km/h

45%

23:00

13°

km/h

46%

Thu

00:00

13°

km/h

47%

Daily forecast

Boulder air quality index (AQI⁺) forecast

Today

21°

15°

km/h

69%

Tue

90%

20°

14°

km/h

67%

Wed

21°

13°

km/h

42%

Air pollutants

What is the current air quality in Boulder?

PM2.5 concentration currently meets the WHO annual PM2.5 guideline.

Real-time Boulder air pollution map

Health recommendations

Enjoy outdoor activities

Open your windows to bring clean, fresh air indoors

Get a monitor

Protect yourself from air pollution in Boulder

SHOP IQAIR PRODUCTS

Monitor the air you breathe

Get accurate AirVisual air quality readings and real-time insights for cleaner air. Monitors that reveal pollution sources, highlight when air purifier use is needed.

AirVisual Series

Medical grade air purifiers

Trusted worldwide, the HealthPro Series uses HyperHEPA technology. Filters ultrafine particles other air purifiers miss, delivering medical-grade protection.

HealthPro Series

Powerful, stylish air purifiers

Compact and powerful, the Atem Series combines Swiss engineering with high-performance air purification, filtering ultrafine particles with HyperHEPA technology.

Atem Series

Pollen

What is the pollen count in Boulder today?

Index

Moderate

Tree

None

Grass

None

Weed

Moderate

50%

Source:

wetter.com

Pollen forecast in Boulder

Health recommendations

Enjoy outdoor activities

Open your windows to bring clean, fresh air indoors

Get a monitor

Real-time Boulder air pollution map

Pollen

What is the pollen count in Boulder today?

Index

Moderate

Tree

None

Grass

None

Weed

Moderate

50%

Source:

wetter.com

Pollen forecast in Boulder

Protect yourself from air pollution in Boulder

SHOP IQAIR PRODUCTS

Monitor the air you breathe

Get accurate AirVisual air quality readings and real-time insights for cleaner air. Monitors that reveal pollution sources, highlight when air purifier use is needed.

AirVisual Series

Medical grade air purifiers

Trusted worldwide, the HealthPro Series uses HyperHEPA technology. Filters ultrafine particles other air purifiers miss, delivering medical-grade protection.

HealthPro Series

Powerful, stylish air purifiers

Compact and powerful, the Atem Series combines Swiss engineering with high-performance air purification, filtering ultrafine particles with HyperHEPA technology.

Atem Series

Most polluted locations near Boulder

Worldwide AQI⁺ ranking

Station ranking

Real-time AQI⁺ station ranking for stations in Boulder

#	Stations	AQI⁺ US
1	10th Street	36
2	Aztec Central	34
3	1066 Berea Dr	28
4	285 Vail Cir	28
5	700 Utica Ave	28
6	4792-4766 Kellogg Cir	26
7	2055-1901 Kalmia Ave	25
8	717 Evergreen Boulder	24
9	Bean Mountain Lane	24
10	1491 High St	20

City ranking

Real-time USA AQI⁺ city ranking

#	Cities	AQI⁺ US
1	Falcon Heights, Minnesota	89
2	Imperial Beach, California	71
3	North St. Paul, Minnesota	69
4	Minneapolis, Minnesota	68
5	St. Paul, Minnesota	67
6	Lilydale, Minnesota	66
7	New Braunfels, Texas	66
8	North Platte, Nebraska	66
9	Peaceful Valley, Washington	66
10	Baton Rouge, Louisiana	64

History

Historic air quality graph for Boulder

14 AQI⁺ US

Good

00:00–01:00 Sep 28 Local time

AQI⁺ US

History

Historic air quality graph for Boulder

14 AQI⁺ US

Good

00:00–01:00 Sep 28 Local time

AQI⁺ US

Most polluted locations near Boulder

Worldwide AQI⁺ ranking

Station ranking

Real-time AQI⁺ station ranking for stations in Boulder

#	Stations	AQI⁺ US
1	10th Street	36
2	Aztec Central	34
3	1066 Berea Dr	28
4	285 Vail Cir	28
5	700 Utica Ave	28
6	4792-4766 Kellogg Cir	26
7	2055-1901 Kalmia Ave	25
8	717 Evergreen Boulder	24
9	Bean Mountain Lane	24
10	1491 High St	20

City ranking

Real-time USA AQI⁺ city ranking

#	Cities	AQI⁺ US
1	Falcon Heights, Minnesota	89
2	Imperial Beach, California	71
3	North St. Paul, Minnesota	69
4	Minneapolis, Minnesota	68
5	St. Paul, Minnesota	67
6	Lilydale, Minnesota	66
7	New Braunfels, Texas	66
8	North Platte, Nebraska	66
9	Peaceful Valley, Washington	66
10	Baton Rouge, Louisiana	64