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 • 31 Followers • 23:00, Oct 08

Data source: PurpleAir

US AQI⁺

Good

Main pollutant:

PM2.5

1.1 µg/m³

10°

2 km/h

98 %

Data source: PurpleAir

Hourly forecast

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

Now

10°

km/h

98%

Fri

03:00

9°

km/h

99%

04:00

9°

km/h

99%

05:00

70%

8°

km/h

99%

06:00

9°

km/h

99%

07:00

80%

9°

km/h

99%

08:00

80%

9°

km/h

99%

09:00

9°

km/h

99%

10:00

80%

9°

km/h

100%

11:00

80%

9°

km/h

100%

12:00

8°

km/h

99%

13:00

70%

7°

km/h

99%

14:00

6°

km/h

99%

15:00

6°

km/h

99%

16:00

7°

km/h

83%

17:00

5°

km/h

85%

18:00

4°

km/h

94%

19:00

80%

4°

km/h

98%

20:00

80%

4°

km/h

97%

21:00

4°

km/h

99%

22:00

80%

4°

km/h

99%

23:00

80%

4°

km/h

99%

Sat

00:00

3°

km/h

99%

01:00

80%

4°

km/h

99%

02:00

80%

3°

km/h

99%

03:00

3°

km/h

99%

04:00

80%

3°

km/h

99%

05:00

80%

4°

km/h

99%

06:00

4°

km/h

99%

07:00

80%

4°

km/h

99%

08:00

80%

4°

km/h

99%

09:00

4°

km/h

99%

10:00

80%

4°

km/h

99%

11:00

80%

5°

km/h

99%

12:00

4°

km/h

99%

13:00

4°

km/h

99%

14:00

5°

km/h

95%

15:00

5°

km/h

89%

16:00

6°

km/h

86%

17:00

5°

km/h

88%

18:00

80%

4°

km/h

98%

19:00

90%

4°

km/h

98%

20:00

80%

4°

km/h

99%

21:00

4°

km/h

99%

22:00

4°

km/h

92%

23:00

2°

km/h

88%

Sun

00:00

2°

km/h

85%

01:00

2°

km/h

82%

02:00

3°

km/h

77%

03:00

3°

km/h

70%

04:00

3°

km/h

69%

05:00

3°

km/h

70%

06:00

1°

km/h

93%

07:00

1°

km/h

92%

08:00

2°

km/h

90%

09:00

4°

km/h

85%

10:00

7°

km/h

73%

11:00

9°

km/h

60%

12:00

11°

km/h

48%

13:00

12°

km/h

43%

14:00

12°

km/h

41%

15:00

12°

km/h

41%

16:00

12°

km/h

43%

17:00

11°

km/h

50%

18:00

7°

km/h

66%

19:00

5°

km/h

72%

20:00

5°

km/h

72%

21:00

4°

km/h

72%

22:00

4°

km/h

71%

23:00

4°

km/h

71%

Mon

00:00

4°

km/h

69%

01:00

4°

km/h

67%

Daily forecast

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

Today

80%

9°

4°

km/h

97%

Sat

90%

6°

4°

km/h

96%

Sun

12°

1°

km/h

65%

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

None

Grass

None

Weed

Low

25%

Source:

wetter.com

Pollen forecast

Pollen

What is the pollen count in Mt St Helens today?

Index

Low

Tree

None

Grass

None

Weed

Low

25%

Source:

wetter.com

Pollen forecast

History

Historic air quality graph for Mt St Helens

6 AQI⁺ US

Good

22:00–23:00 Oct 08

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	26
2	663 Shadow Mountain Rd	11
3	Mt St Helens	6
4	Delameter Road	3
5	Wilson Drive	3

City ranking

Real-time USA AQI⁺ city ranking

#	Cities	AQI⁺ US
1	Hamilton, Montana	166
2	New Canaan, Connecticut	165
3	Little Rock, Arkansas	98
4	Lincoln County, Montana	82
5	Fresno County, California	77
6	St. Louis, Missouri	77
7	Fort Worth, Texas	76
8	Three Rivers, California	76
9	Duchesne, Utah	75
10	Jackson, Mississippi	75