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Air quality in Boulder County

Air quality index (AQI⁺) and PM2.5 air pollution in Boulder County • 160.5K Followers • 14:00, May 29 Local time

Milliken AQI Alert nearby

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US AQI⁺

Good

Main pollutant:

PM2.5

6.5 µg/m³

18°

14 km/h

42 %

Hourly forecast

Boulder County air quality index (AQI⁺) forecast

Now

18°

km/h

42%

15:00

19°

km/h

34%

16:00

17°

km/h

38%

17:00

18°

km/h

37%

18:00

90%

13°

km/h

61%

19:00

13°

km/h

71%

20:00

12°

km/h

78%

21:00

11°

km/h

84%

22:00

90%

10°

km/h

93%

23:00

10°

km/h

85%

Sat

00:00

10°

km/h

91%

01:00

10°

km/h

75%

02:00

10°

km/h

59%

03:00

8°

km/h

56%

04:00

8°

km/h

57%

05:00

7°

km/h

58%

06:00

6°

km/h

60%

07:00

7°

km/h

56%

08:00

9°

km/h

48%

09:00

10°

km/h

42%

10:00

11°

km/h

30%

11:00

13°

km/h

28%

12:00

14°

km/h

26%

13:00

15°

km/h

24%

14:00

16°

km/h

27%

15:00

16°

km/h

27%

16:00

16°

km/h

25%

17:00

13°

km/h

38%

18:00

12°

km/h

47%

19:00

11°

km/h

48%

20:00

9°

km/h

53%

21:00

8°

km/h

50%

22:00

8°

km/h

49%

23:00

9°

km/h

48%

Sun

00:00

8°

km/h

51%

01:00

8°

km/h

48%

02:00

8°

km/h

53%

03:00

7°

km/h

57%

04:00

7°

km/h

57%

05:00

7°

km/h

57%

06:00

7°

km/h

59%

07:00

8°

km/h

57%

08:00

10°

km/h

53%

09:00

11°

km/h

51%

10:00

13°

km/h

43%

11:00

14°

km/h

38%

12:00

15°

km/h

32%

13:00

16°

km/h

31%

14:00

17°

km/h

29%

15:00

17°

km/h

35%

16:00

17°

km/h

32%

17:00

18°

km/h

24%

18:00

18°

km/h

25%

19:00

17°

km/h

25%

20:00

13°

km/h

32%

21:00

12°

km/h

35%

22:00

11°

km/h

36%

23:00

10°

km/h

38%

Mon

00:00

10°

km/h

37%

01:00

9°

km/h

39%

02:00

8°

km/h

42%

03:00

8°

km/h

42%

04:00

7°

km/h

43%

05:00

7°

km/h

49%

06:00

7°

km/h

47%

07:00

10°

km/h

39%

08:00

13°

km/h

31%

09:00

14°

km/h

29%

10:00

16°

km/h

27%

11:00

17°

km/h

24%

12:00

16°

km/h

27%

13:00

90%

15°

km/h

37%

Daily forecast

Boulder County air quality index (AQI⁺) forecast

Today

19°

10°

km/h

54%

Sat

16°

6°

km/h

40%

Sun

18°

7°

km/h

37%

Air pollutants

What is the current air quality in Boulder County?

PM2.5 concentration is currently 1.3 times the World Health Organization annual PM2.5 guideline value.

Real-time Boulder County 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 County

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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.

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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 County today?

Index

Low

Tree

Low

25%

Grass

Low

25%

Weed

None

Source:

wetter.com

Pollen forecast in Boulder County

Health recommendations

Enjoy outdoor activities

Open your windows to bring clean, fresh air indoors

Get a monitor

Real-time Boulder County air pollution map

Pollen

What is the pollen count in Boulder County today?

Index

Low

Tree

Low

25%

Grass

Low

25%

Weed

None

Source:

wetter.com

Pollen forecast in Boulder County

Protect yourself from air pollution in Boulder County

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 County

Worldwide AQI⁺ ranking

Station ranking

Real-time AQI⁺ station ranking for stations in Boulder County

#	Stations	AQI⁺ US
1	161 Swallow Ln	37
2	32-16 Flamingo Dr	36
3	5555 Valmont Rd	36
4	5699-5669 Valmont Rd	36
5	5875-5817 Valmont Rd	36
6	5668-5698 Valmont Rd	35
7	5667-5557 Valmont Rd	34
8	5771-5701 Valmont Rd	33
9	818 Co Rd 116	31
10	47th Street	22

City ranking

Real-time USA AQI⁺ city ranking

#	Cities	AQI⁺ US
1	Avenal, California	94
2	St. Louis, Missouri	74
3	Harris, Texas	69
4	Des Moines, Iowa	66
5	Channelview, Texas	62
6	Chicago, Illinois	61
7	Calcasieu, Louisiana	60
8	Crow Wing County, Minnesota	60
9	Pine County, Minnesota	60
10	Pompano Beach, Florida	60

History

Historic air quality graph for Boulder County

36 AQI⁺ US

Good

13:00–14:00 May 29 Local time

AQI⁺ US

History

Historic air quality graph for Boulder County

36 AQI⁺ US

Good

13:00–14:00 May 29 Local time

AQI⁺ US

Most polluted locations near Boulder County

Worldwide AQI⁺ ranking

Station ranking

Real-time AQI⁺ station ranking for stations in Boulder County

#	Stations	AQI⁺ US
1	161 Swallow Ln	37
2	32-16 Flamingo Dr	36
3	5555 Valmont Rd	36
4	5699-5669 Valmont Rd	36
5	5875-5817 Valmont Rd	36
6	5668-5698 Valmont Rd	35
7	5667-5557 Valmont Rd	34
8	5771-5701 Valmont Rd	33
9	818 Co Rd 116	31
10	47th Street	22

City ranking

Real-time USA AQI⁺ city ranking

#	Cities	AQI⁺ US
1	Avenal, California	94
2	St. Louis, Missouri	74
3	Harris, Texas	69
4	Des Moines, Iowa	66
5	Channelview, Texas	62
6	Chicago, Illinois	61
7	Calcasieu, Louisiana	60
8	Crow Wing County, Minnesota	60
9	Pine County, Minnesota	60
10	Pompano Beach, Florida	60