Add

Air quality near Mt St Helens, Cowlitz County

Air quality index (AQI⁺) and PM2.5 air pollution near Mt St Helens, Cowlitz County • 5 Followers • 20:00, May 18 Local time

Data source: PurpleAir

US AQI⁺

Good

Main pollutant:

PM2.5

3 µg/m³

8°

11 km/h

84 %

Data source: PurpleAir

Hourly forecast

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

Now

8°

km/h

84%

21:00

8°

km/h

95%

22:00

90%

7°

km/h

93%

23:00

7°

km/h

97%

Tue

00:00

6°

km/h

95%

01:00

5°

km/h

98%

02:00

5°

km/h

98%

03:00

5°

km/h

94%

04:00

4°

km/h

97%

05:00

4°

km/h

98%

06:00

5°

km/h

95%

07:00

6°

km/h

90%

08:00

7°

km/h

85%

09:00

8°

km/h

83%

10:00

8°

km/h

89%

11:00

8°

km/h

88%

12:00

8°

km/h

85%

13:00

90%

8°

km/h

94%

14:00

90%

9°

km/h

98%

15:00

9°

km/h

99%

16:00

90%

9°

km/h

99%

17:00

90%

9°

km/h

99%

18:00

8°

km/h

99%

19:00

90%

8°

km/h

99%

20:00

8°

km/h

96%

21:00

8°

km/h

99%

22:00

7°

km/h

99%

23:00

90%

7°

km/h

100%

Wed

00:00

7°

km/h

100%

01:00

7°

km/h

99%

02:00

7°

km/h

99%

03:00

6°

km/h

99%

04:00

6°

km/h

99%

05:00

6°

km/h

99%

06:00

6°

km/h

99%

07:00

6°

km/h

99%

08:00

90%

7°

km/h

99%

09:00

8°

km/h

99%

10:00

90%

9°

km/h

98%

11:00

90%

11°

km/h

98%

12:00

11°

km/h

98%

13:00

90%

11°

km/h

98%

14:00

90%

12°

km/h

98%

15:00

12°

km/h

98%

16:00

12°

km/h

98%

17:00

13°

km/h

83%

18:00

13°

km/h

58%

19:00

12°

km/h

63%

20:00

10°

km/h

77%

21:00

7°

km/h

87%

22:00

7°

km/h

89%

23:00

6°

km/h

90%

Thu

00:00

6°

km/h

90%

01:00

6°

km/h

87%

02:00

6°

km/h

87%

03:00

5°

km/h

85%

04:00

5°

km/h

84%

05:00

5°

km/h

81%

06:00

6°

km/h

75%

07:00

9°

km/h

64%

08:00

12°

km/h

51%

09:00

15°

km/h

43%

10:00

17°

km/h

40%

11:00

19°

km/h

36%

12:00

19°

km/h

36%

13:00

20°

km/h

37%

14:00

20°

km/h

40%

15:00

20°

km/h

43%

16:00

19°

km/h

44%

17:00

19°

km/h

44%

18:00

18°

km/h

47%

19:00

16°

km/h

54%

Daily forecast

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

Today

9°

5°

km/h

94%

Tue

13°

6°

km/h

91%

Wed

20°

6°

km/h

54%

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

High

Tree

Low

25%

Grass

High

75%

Weed

Moderate

50%

Source:

wetter.com

Pollen forecast

Protect yourself from air pollution in Mt St Helens

SHOP IQAIR PRODUCTS

Air Purifiers

Face Masks

Air Quality Monitors

Pollen

What is the pollen count in Mt St Helens today?

Index

High

Tree

Low

25%

Grass

High

75%

Weed

Moderate

50%

Source:

wetter.com

Pollen forecast

History

Historic air quality graph for Mt St Helens

17 AQI⁺ US

Good

19:00–20:00 May 18 Local time

AQI⁺ US

Measure your own air quality

Get a monitor and contribute air quality data in your city.

Get a monitor How to contribute

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	663 Shadow Mountain Rd	17
2	Mt St Helens	17

City ranking

Real-time USA AQI⁺ city ranking

#	Cities	AQI⁺ US
1	Huntington Beach, California	88
2	Green Bay, Wisconsin	87
3	Mission, Texas	87
4	Cypress, California	82
5	Diamond Bar, California	81
6	Mercer, New Jersey	80
7	Glendora, California	79
8	Rancho Palos Verdes, California	79
9	Claremont, California	78
10	Manhattan Beach, California	78