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Air quality near San Gregorio, San Mateo County

Air quality index (AQI⁺) and PM2.5 air pollution near San Gregorio, San Mateo County • 23 Followers • 08:00, Jun 22 Local time

Data source: PurpleAir

US AQI⁺

Good

Main pollutant:

PM2.5

1.8 µg/m³

13°

2 km/h

98 %

Data source: PurpleAir

Hourly forecast

San Gregorio, San Mateo County air quality index (AQI⁺) forecast

Now

13°

km/h

98%

09:00

14°

km/h

95%

10:00

15°

km/h

93%

11:00

16°

km/h

88%

12:00

18°

km/h

80%

13:00

18°

km/h

78%

14:00

18°

km/h

78%

15:00

17°

km/h

78%

16:00

17°

km/h

80%

17:00

17°

km/h

81%

18:00

16°

km/h

82%

19:00

15°

km/h

87%

20:00

13°

km/h

94%

21:00

12°

km/h

100%

22:00

12°

km/h

99%

23:00

12°

km/h

98%

Tue

00:00

12°

km/h

99%

01:00

11°

km/h

100%

02:00

12°

km/h

92%

03:00

12°

km/h

90%

04:00

12°

km/h

93%

05:00

12°

km/h

97%

06:00

11°

km/h

99%

07:00

12°

km/h

98%

08:00

13°

km/h

97%

09:00

14°

km/h

84%

10:00

16°

km/h

79%

11:00

17°

km/h

77%

12:00

17°

km/h

76%

13:00

18°

km/h

75%

14:00

18°

km/h

75%

15:00

18°

km/h

75%

16:00

18°

km/h

74%

17:00

17°

km/h

75%

18:00

16°

km/h

79%

19:00

15°

km/h

84%

20:00

13°

km/h

91%

21:00

13°

km/h

96%

22:00

13°

km/h

91%

23:00

13°

km/h

87%

Wed

00:00

13°

km/h

95%

01:00

12°

km/h

99%

02:00

90%

12°

km/h

99%

03:00

11°

km/h

99%

04:00

11°

km/h

99%

05:00

11°

km/h

99%

06:00

12°

km/h

88%

07:00

13°

km/h

89%

08:00

15°

km/h

88%

09:00

18°

km/h

86%

10:00

21°

km/h

88%

11:00

22°

km/h

93%

12:00

22°

km/h

95%

13:00

21°

km/h

93%

14:00

22°

km/h

92%

15:00

23°

km/h

94%

16:00

22°

km/h

95%

17:00

22°

km/h

95%

18:00

20°

km/h

93%

19:00

18°

km/h

92%

20:00

16°

km/h

91%

21:00

13°

km/h

92%

22:00

13°

km/h

91%

23:00

12°

km/h

88%

Thu

00:00

12°

km/h

86%

01:00

12°

km/h

85%

02:00

11°

km/h

87%

03:00

11°

km/h

87%

04:00

11°

km/h

86%

05:00

11°

km/h

83%

06:00

11°

km/h

84%

07:00

13°

km/h

85%

Daily forecast

San Gregorio, San Mateo County air quality index (AQI⁺) forecast

Today

18°

12°

km/h

89%

Tue

18°

11°

km/h

84%

Wed

23°

12°

km/h

91%

Air pollutants

What is the current air quality near San Gregorio?

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 San Gregorio, San Mateo County air pollution map

Pollen

What is the pollen count in San Gregorio today?

Index

Moderate

Tree

None

Grass

Moderate

50%

Weed

None

Source:

wetter.com

Pollen forecast

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Pollen

What is the pollen count in San Gregorio today?

Index

Moderate

Tree

None

Grass

Moderate

50%

Weed

None

Source:

wetter.com

Pollen forecast

History

Historic air quality graph for San Gregorio

10 AQI⁺ US

Good

07:00–08:00 Jun 22 Local time

AQI⁺ US

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Most polluted locations near San Gregorio, San Mateo County

Worldwide AQI⁺ ranking

Station ranking

Real-time San Gregorio AQI⁺ station ranking

#	Stations	AQI⁺ US
1	265 Old Spanish Trail	29
2	920 Bear Gulch Road	29
3	Arlington Way	16
4	Dirt Alpine	16
5	Alberta Glen	14
6	Cerrito Avenue	13
7	480 Tunitas Creek Road	8
8	Durham Road	6
9	Alpine Road	2
10	Experimental Facilities Dept Shops EFD	1

City ranking

Real-time USA AQI⁺ city ranking

#	Cities	AQI⁺ US
1	Hacienda Heights, California	126
2	East Los Angeles, California	99
3	Rancho Cucamonga, California	99
4	Claremont, California	96
5	Glendora, California	93
6	Burnet, Texas	89
7	La Verne, California	86
8	Stafford, Virginia	80
9	Whittier, California	79
10	Bexar County, Texas	78