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Air quality in San Mateo County

Air quality index (AQI⁺) and PM2.5 air pollution in San Mateo County • 16 Followers • 08:00, Aug 12

US AQI⁺

Good

Main pollutant:

PM2.5

3 µg/m³

15°

9 km/h

87 %

Hourly forecast

San Mateo County air quality index (AQI⁺) forecast

Now

15°

km/h

87%

09:00

16°

km/h

86%

10:00

17°

km/h

84%

11:00

18°

km/h

83%

12:00

19°

km/h

78%

13:00

19°

km/h

77%

14:00

19°

km/h

77%

15:00

19°

km/h

76%

16:00

19°

km/h

74%

17:00

18°

km/h

77%

18:00

17°

km/h

85%

19:00

15°

km/h

92%

20:00

14°

km/h

97%

21:00

80%

14°

km/h

97%

22:00

90%

14°

km/h

98%

23:00

80%

14°

km/h

98%

Thu

00:00

14°

km/h

98%

01:00

80%

14°

km/h

99%

02:00

80%

13°

km/h

99%

03:00

13°

km/h

99%

04:00

80%

13°

km/h

99%

05:00

80%

13°

km/h

99%

06:00

13°

km/h

99%

07:00

70%

13°

km/h

99%

08:00

13°

km/h

99%

09:00

13°

km/h

99%

10:00

80%

14°

km/h

98%

11:00

80%

15°

km/h

96%

12:00

15°

km/h

94%

13:00

80%

15°

km/h

97%

14:00

80%

15°

km/h

98%

15:00

14°

km/h

99%

16:00

80%

14°

km/h

99%

17:00

80%

14°

km/h

99%

18:00

14°

km/h

99%

19:00

80%

13°

km/h

99%

20:00

80%

13°

km/h

99%

21:00

12°

km/h

99%

22:00

80%

12°

km/h

99%

23:00

80%

12°

km/h

99%

Fri

00:00

12°

km/h

99%

01:00

80%

12°

km/h

99%

02:00

80%

12°

km/h

99%

03:00

12°

km/h

99%

04:00

80%

12°

km/h

99%

05:00

80%

12°

km/h

99%

06:00

13°

km/h

97%

07:00

13°

km/h

97%

08:00

15°

km/h

82%

09:00

16°

km/h

73%

10:00

17°

km/h

70%

11:00

17°

km/h

69%

12:00

18°

km/h

69%

13:00

19°

km/h

64%

14:00

19°

km/h

62%

15:00

19°

km/h

63%

16:00

18°

km/h

66%

17:00

17°

km/h

71%

18:00

16°

km/h

77%

19:00

15°

km/h

80%

20:00

13°

km/h

96%

21:00

13°

km/h

97%

22:00

13°

km/h

95%

23:00

13°

km/h

95%

Sat

00:00

12°

km/h

96%

01:00

12°

km/h

95%

02:00

12°

km/h

94%

03:00

12°

km/h

94%

04:00

12°

km/h

93%

05:00

13°

km/h

92%

06:00

13°

km/h

89%

07:00

13°

km/h

85%

Daily forecast

San Mateo County air quality index (AQI⁺) forecast

Today

19°

13°

km/h

86%

Thu

80%

15°

12°

km/h

98%

Fri

19°

13°

km/h

78%

Air pollutants

What is the current air quality in San Mateo County?

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

Real-time San Mateo County air pollution map

Health recommendations

Enjoy outdoor activities

Open your windows to bring clean, fresh air indoors

Get a monitor

Pollen

What is the pollen count in San Mateo County today?

Index

None

Tree

None

Grass

None

Weed

None

Source:

wetter.com

Pollen forecast in San Mateo County

Health recommendations

Enjoy outdoor activities

Open your windows to bring clean, fresh air indoors

Get a monitor

Real-time San Mateo County air pollution map

Pollen

What is the pollen count in San Mateo County today?

Index

None

Tree

None

Grass

None

Weed

None

Source:

wetter.com

Pollen forecast in San Mateo County

Most polluted locations near San Mateo County

Worldwide AQI⁺ ranking

Station ranking

Real-time AQI⁺ station ranking for stations in San Mateo County

#	Stations	AQI⁺ US
1	265 Old Spanish Trail	29
2	920 Bear Gulch Road	28
3	Belle Roche Court	25
4	Dirt Alpine	22
5	Alberta Glen	17
6	Arlington Way	17
7	480 Tunitas Creek Road	11
8	Burlingame Hills	11
9	Alpine Road	10
10	Alexander Avenue	1

City ranking

Real-time USA AQI⁺ city ranking

#	Cities	AQI⁺ US
1	Inchelium, Washington	230
2	Kettle Falls, Washington	204
3	Stevens County, Washington	200
4	Winthrop, Washington	177
5	Big Sky, Montana	168
6	Santa Fe, New Mexico	168
7	Okanogan County, Washington	166
8	Kootenai County, Idaho	162
9	Pend Oreille County, Washington	160
10	Weaverville, California	158

History

Historic air quality graph for San Mateo County

17 AQI⁺ US

Good

07:00–08:00 Aug 12

AQI⁺ US

History

Historic air quality graph for San Mateo County

17 AQI⁺ US

Good

07:00–08:00 Aug 12

AQI⁺ US

Most polluted locations near San Mateo County

Worldwide AQI⁺ ranking

Station ranking

Real-time AQI⁺ station ranking for stations in San Mateo County

#	Stations	AQI⁺ US
1	265 Old Spanish Trail	29
2	920 Bear Gulch Road	28
3	Belle Roche Court	25
4	Dirt Alpine	22
5	Alberta Glen	17
6	Arlington Way	17
7	480 Tunitas Creek Road	11
8	Burlingame Hills	11
9	Alpine Road	10
10	Alexander Avenue	1

City ranking

Real-time USA AQI⁺ city ranking

#	Cities	AQI⁺ US
1	Inchelium, Washington	230
2	Kettle Falls, Washington	204
3	Stevens County, Washington	200
4	Winthrop, Washington	177
5	Big Sky, Montana	168
6	Santa Fe, New Mexico	168
7	Okanogan County, Washington	166
8	Kootenai County, Idaho	162
9	Pend Oreille County, Washington	160
10	Weaverville, California	158