Mt St Helens

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Air quality near Mt St Helens, Cowlitz County

Air quality index (AQI⁺) and PM2.5 air pollution near Mt St Helens, Cowlitz County • 32 Followers • 18:00, Oct 31 Local time

Data source: PurpleAir

US AQI⁺

Good

Main pollutant:

PM2.5

2.3 µg/m³

4°

8 km/h

80 %

Data source: PurpleAir

Hourly forecast

Mt St Helens, Cowlitz County air quality index (AQI⁺) forecast

Now

4°

km/h

80%

19:00

3°

km/h

86%

20:00

3°

km/h

85%

21:00

3°

km/h

83%

22:00

3°

km/h

84%

23:00

3°

km/h

84%

Sun

00:00

3°

km/h

84%

01:00

3°

km/h

82%

01:00

3°

km/h

84%

02:00

3°

km/h

84%

03:00

3°

km/h

85%

04:00

3°

km/h

85%

05:00

3°

km/h

84%

06:00

3°

km/h

86%

07:00

3°

km/h

86%

08:00

4°

km/h

82%

09:00

5°

km/h

83%

10:00

7°

km/h

76%

11:00

8°

km/h

69%

12:00

8°

km/h

72%

13:00

8°

km/h

77%

14:00

8°

km/h

82%

15:00

7°

km/h

84%

16:00

6°

km/h

84%

17:00

5°

km/h

90%

18:00

5°

km/h

96%

19:00

4°

km/h

99%

20:00

2°

km/h

93%

21:00

2°

km/h

87%

22:00

2°

km/h

86%

23:00

2°

km/h

86%

Mon

00:00

3°

km/h

86%

01:00

3°

km/h

88%

02:00

3°

km/h

87%

03:00

4°

km/h

76%

04:00

5°

km/h

61%

05:00

5°

km/h

58%

06:00

5°

km/h

58%

07:00

5°

km/h

59%

08:00

5°

km/h

62%

09:00

7°

km/h

56%

10:00

9°

km/h

53%

11:00

10°

km/h

53%

12:00

10°

km/h

55%

13:00

10°

km/h

60%

14:00

9°

km/h

60%

15:00

8°

km/h

64%

16:00

7°

km/h

66%

17:00

7°

km/h

52%

18:00

6°

km/h

53%

19:00

6°

km/h

54%

20:00

6°

km/h

55%

21:00

6°

km/h

54%

22:00

6°

km/h

54%

23:00

6°

km/h

57%

Tue

00:00

6°

km/h

57%

01:00

5°

km/h

72%

02:00

5°

km/h

74%

03:00

6°

km/h

74%

04:00

6°

km/h

73%

05:00

6°

km/h

72%

06:00

6°

km/h

71%

07:00

5°

km/h

73%

08:00

7°

km/h

68%

09:00

8°

km/h

62%

10:00

10°

km/h

51%

11:00

11°

km/h

48%

12:00

11°

km/h

50%

13:00

11°

km/h

53%

14:00

10°

km/h

57%

15:00

9°

km/h

63%

16:00

8°

km/h

72%

Daily forecast

Mt St Helens, Cowlitz County air quality index (AQI⁺) forecast

Today

8°

2°

km/h

84%

Sun

10°

5°

km/h

57%

Mon

11°

3°

km/h

69%

Air pollutants

What is the current air quality near Mt St Helens?

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

Health recommendations

Enjoy outdoor activities

Open your windows to bring clean, fresh air indoors

Get a monitor

Real-time Mt St Helens, Cowlitz County air pollution map

Pollen

What is the pollen count in Mt St Helens today?

Index

Low

Tree

Low

25%

Grass

None

Weed

Low

25%

Source:

wetter.com

Pollen forecast

Protect yourself from air pollution in Mt St Helens

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Air Purifiers

Face Masks

Air Quality Monitors

Pollen

What is the pollen count in Mt St Helens today?

Index

Low

Tree

Low

25%

Grass

None

Weed

Low

25%

Source:

wetter.com

Pollen forecast

History

Historic air quality graph for Mt St Helens

13 AQI⁺ US

Good

17:00–18:00 Oct 31 Local time

AQI⁺ US

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Most polluted locations near Mt St Helens, Cowlitz County

Worldwide AQI⁺ ranking

Station ranking

Real-time Mt St Helens AQI⁺ station ranking

#	Stations	AQI⁺ US
1	Green Mountain rd	45
2	Wilson Drive	14
3	Delameter Road	8
4	663 Shadow Mountain Rd	2

City ranking

Real-time USA AQI⁺ city ranking

#	Cities	AQI⁺ US
1	Shaver Lake, California	123
2	Ester, Alaska	98
3	Lilydale, Minnesota	88
4	Falcon Heights, Minnesota	87
5	Glendale, Arapahoe County, Colorado	87
6	Benton City, Washington	81
7	Mammoth Lakes, California	81
8	Castle Rock, Colorado	80
9	Springfield, Oregon	79
10	Sheridan, Colorado	78