Air quality in Boulder County

Air quality index (AQI⁺) and PM2.5 air pollution in Boulder County • 159.1K Followers • 16:00, Apr 24 Local time

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Milliken AQI Alert nearby

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51

US AQI⁺

Moderate

face expression based on aqi value

Main pollutant:

PM10

55 µg/m³

weather condition icon

13°

wind direction icon

26 km/h

weather humid icon

14 %

Hourly forecast

Boulder County air quality index (AQI⁺) forecast

Now

51

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 250 degree

26

km/h

Humidity icon

14%

17:00

48

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 252 degree

24

km/h

Humidity icon

13%

18:00

44

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 246 degree

19

km/h

Humidity icon

16%

19:00

40

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 243 degree

16

km/h

Humidity icon

19%

20:00

37

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 248 degree

13

km/h

Humidity icon

25%

21:00

34

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 250 degree

10

km/h

Humidity icon

30%

22:00

30

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 81 degree

16

km/h

Humidity icon

33%

23:00

26

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 89 degree

8

km/h

Humidity icon

72%

Sat

00:00

23

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 61 degree

7

km/h

Humidity icon

96%

01:00

20

Weather icon

-1°

IQAir AirVisual Air Quality Map Wind rotating 75 degree

10

km/h

Humidity icon

98%

02:00

16

Weather icon

90%

-1°

IQAir AirVisual Air Quality Map Wind rotating 86 degree

5

km/h

Humidity icon

97%

03:00

14

Weather icon

-1°

IQAir AirVisual Air Quality Map Wind rotating 131 degree

6

km/h

Humidity icon

94%

04:00

11

Weather icon

-1°

IQAir AirVisual Air Quality Map Wind rotating 161 degree

7

km/h

Humidity icon

88%

05:00

11

Weather icon

-1°

IQAir AirVisual Air Quality Map Wind rotating 164 degree

5

km/h

Humidity icon

79%

06:00

13

Weather icon

-2°

IQAir AirVisual Air Quality Map Wind rotating 150 degree

4

km/h

Humidity icon

73%

07:00

13

Weather icon

-2°

IQAir AirVisual Air Quality Map Wind rotating 134 degree

4

km/h

Humidity icon

83%

08:00

13

Weather icon

-1°

IQAir AirVisual Air Quality Map Wind rotating 135 degree

7

km/h

Humidity icon

83%

09:00

15

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 126 degree

6

km/h

Humidity icon

76%

10:00

15

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 113 degree

7

km/h

Humidity icon

65%

11:00

15

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 108 degree

9

km/h

Humidity icon

57%

12:00

12

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 110 degree

10

km/h

Humidity icon

48%

13:00

12

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 105 degree

13

km/h

Humidity icon

47%

14:00

12

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 105 degree

14

km/h

Humidity icon

48%

15:00

13

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 100 degree

14

km/h

Humidity icon

45%

16:00

13

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 119 degree

12

km/h

Humidity icon

51%

17:00

13

Weather icon

90%

IQAir AirVisual Air Quality Map Wind rotating 105 degree

17

km/h

Humidity icon

54%

18:00

13

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 114 degree

17

km/h

Humidity icon

66%

19:00

13

Weather icon

90%

IQAir AirVisual Air Quality Map Wind rotating 338 degree

4

km/h

Humidity icon

85%

20:00

13

Weather icon

90%

IQAir AirVisual Air Quality Map Wind rotating 141 degree

7

km/h

Humidity icon

87%

21:00

19

Weather icon

90%

IQAir AirVisual Air Quality Map Wind rotating 93 degree

7

km/h

Humidity icon

92%

22:00

19

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 78 degree

7

km/h

Humidity icon

97%

23:00

19

Weather icon

90%

IQAir AirVisual Air Quality Map Wind rotating 82 degree

10

km/h

Humidity icon

98%

Sun

00:00

26

Weather icon

90%

IQAir AirVisual Air Quality Map Wind rotating 88 degree

10

km/h

Humidity icon

98%

01:00

26

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 97 degree

9

km/h

Humidity icon

98%

02:00

26

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 84 degree

9

km/h

Humidity icon

98%

03:00

29

Weather icon

90%

IQAir AirVisual Air Quality Map Wind rotating 88 degree

8

km/h

Humidity icon

98%

04:00

29

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 82 degree

6

km/h

Humidity icon

98%

05:00

29

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 97 degree

6

km/h

Humidity icon

98%

06:00

27

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 106 degree

4

km/h

Humidity icon

98%

07:00

27

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 118 degree

3

km/h

Humidity icon

98%

08:00

27

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 102 degree

4

km/h

Humidity icon

98%

09:00

21

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 97 degree

6

km/h

Humidity icon

97%

10:00

21

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 82 degree

5

km/h

Humidity icon

97%

11:00

21

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 96 degree

8

km/h

Humidity icon

97%

12:00

13

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 98 degree

9

km/h

Humidity icon

97%

13:00

13

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 95 degree

6

km/h

Humidity icon

93%

14:00

13

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 112 degree

14

km/h

Humidity icon

84%

15:00

12

Weather icon

90%

IQAir AirVisual Air Quality Map Wind rotating 347 degree

8

km/h

Humidity icon

91%

16:00

12

Weather icon

90%

IQAir AirVisual Air Quality Map Wind rotating 281 degree

21

km/h

Humidity icon

95%

17:00

12

Weather icon

90%

IQAir AirVisual Air Quality Map Wind rotating 269 degree

24

km/h

Humidity icon

60%

18:00

8

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 147 degree

13

km/h

Humidity icon

53%

19:00

8

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 97 degree

6

km/h

Humidity icon

71%

20:00

8

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 137 degree

5

km/h

Humidity icon

82%

21:00

13

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 173 degree

2

km/h

Humidity icon

83%

22:00

13

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 141 degree

4

km/h

Humidity icon

83%

23:00

13

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 62 degree

4

km/h

Humidity icon

90%

Mon

00:00

11

Weather icon

-1°

IQAir AirVisual Air Quality Map Wind rotating 66 degree

4

km/h

Humidity icon

97%

01:00

11

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 101 degree

5

km/h

Humidity icon

99%

02:00

11

Weather icon

-1°

IQAir AirVisual Air Quality Map Wind rotating 103 degree

4

km/h

Humidity icon

98%

03:00

7

Weather icon

-1°

IQAir AirVisual Air Quality Map Wind rotating 100 degree

4

km/h

Humidity icon

96%

04:00

7

Weather icon

-1°

IQAir AirVisual Air Quality Map Wind rotating 124 degree

5

km/h

Humidity icon

98%

05:00

7

Weather icon

-2°

IQAir AirVisual Air Quality Map Wind rotating 126 degree

4

km/h

Humidity icon

97%

06:00

6

Weather icon

-2°

IQAir AirVisual Air Quality Map Wind rotating 81 degree

4

km/h

Humidity icon

99%

07:00

6

Weather icon

-1°

IQAir AirVisual Air Quality Map Wind rotating 91 degree

8

km/h

Humidity icon

98%

08:00

6

Weather icon

-1°

IQAir AirVisual Air Quality Map Wind rotating 93 degree

11

km/h

Humidity icon

98%

09:00

6

Weather icon

-1°

IQAir AirVisual Air Quality Map Wind rotating 89 degree

11

km/h

Humidity icon

98%

10:00

6

Weather icon

-1°

IQAir AirVisual Air Quality Map Wind rotating 87 degree

11

km/h

Humidity icon

97%

11:00

6

Weather icon

-1°

IQAir AirVisual Air Quality Map Wind rotating 90 degree

12

km/h

Humidity icon

96%

12:00

6

Weather icon

-1°

IQAir AirVisual Air Quality Map Wind rotating 98 degree

10

km/h

Humidity icon

94%

13:00

6

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 104 degree

8

km/h

Humidity icon

89%

14:00

6

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 105 degree

9

km/h

Humidity icon

84%

15:00

6

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 113 degree

13

km/h

Humidity icon

82%

Daily forecast

|

Boulder County air quality index (AQI⁺) forecast

Today

49

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 225 degree

26

km/h

Humidity icon

25%

Sat

12

Weather icon

-2°

IQAir AirVisual Air Quality Map Wind rotating 90 degree

17

km/h

Humidity icon

68%

Sun

20

Weather icon

IQAir AirVisual Air Quality Map Wind rotating 90 degree

24

km/h

Humidity icon

87%

Air pollutants

What is the current air quality in Boulder County?

IQAir exclamation icon

PM2.5 concentration is currently 1.1 times the World Health Organization annual PM2.5 guideline value.

Health recommendations

common.healthRecommendationComp.icons.exerciseAlt

Sensitive groups should reduce outdoor exercise

common.healthRecommendationComp.icons.windowAlt

Close your windows to avoid dirty outdoor air

Get a monitor
common.healthRecommendationComp.icons.maskAlt

Sensitive groups should wear a mask outdoors

Get a mask
common.healthRecommendationComp.icons.airPurifierAlt

Sensitive groups should run an air purifier

Get an air purifier

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.

HealthPro Series

Powerful, stylish air purifiers

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Pollen

What is the pollen count in Boulder County today?

Index

Pollen global icon

None

Pollen tree icon

Tree

None

0%
Pollen grass icon

Grass

None

0%
Pollen weed icon

Weed

None

0%

Source:

wetter.com
Pollen forecast in Boulder County

Health recommendations

common.healthRecommendationComp.icons.exerciseAlt

Sensitive groups should reduce outdoor exercise

common.healthRecommendationComp.icons.windowAlt

Close your windows to avoid dirty outdoor air

Get a monitor
common.healthRecommendationComp.icons.maskAlt

Sensitive groups should wear a mask outdoors

Get a mask
common.healthRecommendationComp.icons.airPurifierAlt

Sensitive groups should run an air purifier

Get an air purifier

Pollen

What is the pollen count in Boulder County today?

Index

Pollen global icon

None

Pollen tree icon

Tree

None

0%
Pollen grass icon

Grass

None

0%
Pollen weed icon

Weed

None

0%

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⁺ rankingArrow icon

Station ranking

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

#StationsAQI⁺ US
1
The national flag of USA

1066 Berea Dr

43

2
The national flag of USA

Bean Mountain Lane

36

3
The national flag of USA

10th Street

31

4
The national flag of USA

1491 High St

31

5
The national flag of USA

16-7362 Crannell Dr

30

6
The national flag of USA

161 Swallow Ln

30

7
The national flag of USA

2095 Eisenhower Drive

30

8
The national flag of USA

285 Vail Cir

30

9
The national flag of USA

47th Street

29

10
The national flag of USA

18th Street

28

City ranking

Real-time USA AQI⁺ city ranking

#CitiesAQI⁺ US
1
The national flag of USA

Sunriver, Oregon

134

2
The national flag of USA

Three Rivers, Oregon

125

3
The national flag of USA

Mission, Texas

92

4
The national flag of USA

Port Arthur, Texas

79

5
The national flag of USA

Arlington, Virginia

76

6
The national flag of USA

Columbia, South Carolina

73

7
The national flag of USA

Middletown, Ohio

69

8
The national flag of USA

Spartanburg, South Carolina

69

9
The national flag of USA

Boone, North Carolina

68

10
The national flag of USA

Wynnedale, Indiana

68

History

Historic air quality graph for Boulder County

30 AQI⁺ US
Good
15:00–16:00 Apr 24 Local time
AQI⁺ US

History

Historic air quality graph for Boulder County

30 AQI⁺ US
Good
15:00–16:00 Apr 24 Local time
AQI⁺ US

Most polluted locations near Boulder County

Worldwide AQI⁺ rankingArrow icon

Station ranking

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

#StationsAQI⁺ US
1
The national flag of USA

1066 Berea Dr

43

2
The national flag of USA

Bean Mountain Lane

36

3
The national flag of USA

10th Street

31

4
The national flag of USA

1491 High St

31

5
The national flag of USA

16-7362 Crannell Dr

30

6
The national flag of USA

161 Swallow Ln

30

7
The national flag of USA

2095 Eisenhower Drive

30

8
The national flag of USA

285 Vail Cir

30

9
The national flag of USA

47th Street

29

10
The national flag of USA

18th Street

28

City ranking

Real-time USA AQI⁺ city ranking

#CitiesAQI⁺ US
1
The national flag of USA

Sunriver, Oregon

134

2
The national flag of USA

Three Rivers, Oregon

125

3
The national flag of USA

Mission, Texas

92

4
The national flag of USA

Port Arthur, Texas

79

5
The national flag of USA

Arlington, Virginia

76

6
The national flag of USA

Columbia, South Carolina

73

7
The national flag of USA

Middletown, Ohio

69

8
The national flag of USA

Spartanburg, South Carolina

69

9
The national flag of USA

Boone, North Carolina

68

10
The national flag of USA

Wynnedale, Indiana

68

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