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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 • 17:00, Jun 30

Data source: PurpleAir

US AQI⁺

Good

Main pollutant:

PM2.5

6.2 µg/m³

14°

14 km/h

90 %

Data source: PurpleAir

Hourly forecast

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

Now

14°

km/h

90%

18:00

13°

km/h

95%

19:00

90%

13°

km/h

98%

20:00

90%

12°

km/h

99%

21:00

12°

km/h

99%

22:00

90%

12°

km/h

99%

23:00

90%

12°

km/h

99%

Wed

00:00

11°

km/h

99%

01:00

90%

11°

km/h

99%

02:00

90%

11°

km/h

99%

03:00

11°

km/h

99%

04:00

90%

11°

km/h

99%

05:00

90%

11°

km/h

99%

06:00

11°

km/h

99%

07:00

90%

12°

km/h

99%

08:00

90%

12°

km/h

99%

09:00

12°

km/h

98%

10:00

90%

13°

km/h

97%

11:00

13°

km/h

94%

12:00

14°

km/h

92%

13:00

90%

14°

km/h

94%

14:00

14°

km/h

95%

15:00

14°

km/h

95%

16:00

90%

14°

km/h

96%

17:00

13°

km/h

97%

18:00

13°

km/h

98%

19:00

90%

12°

km/h

98%

20:00

12°

km/h

99%

21:00

12°

km/h

99%

22:00

90%

12°

km/h

99%

23:00

12°

km/h

99%

Thu

00:00

12°

km/h

99%

01:00

11°

km/h

99%

02:00

11°

km/h

99%

03:00

11°

km/h

99%

04:00

11°

km/h

98%

05:00

10°

km/h

100%

06:00

10°

km/h

100%

07:00

11°

km/h

98%

08:00

12°

km/h

97%

09:00

13°

km/h

93%

10:00

14°

km/h

89%

11:00

15°

km/h

88%

12:00

16°

km/h

88%

13:00

16°

km/h

86%

14:00

16°

km/h

89%

15:00

15°

km/h

94%

16:00

90%

14°

km/h

95%

17:00

90%

13°

km/h

95%

18:00

17°

km/h

90%

19:00

15°

km/h

89%

20:00

13°

km/h

87%

21:00

13°

km/h

87%

22:00

13°

km/h

84%

23:00

13°

km/h

81%

Fri

00:00

13°

km/h

81%

01:00

13°

km/h

80%

02:00

13°

km/h

80%

03:00

13°

km/h

79%

04:00

13°

km/h

79%

05:00

13°

km/h

79%

06:00

13°

km/h

79%

07:00

14°

km/h

81%

08:00

14°

km/h

82%

09:00

16°

km/h

83%

10:00

18°

km/h

84%

11:00

20°

km/h

85%

12:00

21°

km/h

88%

13:00

20°

km/h

86%

14:00

20°

km/h

86%

15:00

19°

km/h

85%

16:00

19°

km/h

86%

Daily forecast

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

Today

90%

14°

11°

km/h

97%

Wed

17°

10°

km/h

91%

Thu

21°

12°

km/h

86%

Air pollutants

What is the current air quality near San Gregorio?

PM2.5 concentration is currently 1.2 times the World Health Organization annual PM2.5 guideline value.

Health recommendations

Enjoy outdoor activities

Open your windows to bring clean, fresh air indoors

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Real-time San Gregorio, San Mateo County air pollution map

Pollen

What is the pollen count in San Gregorio today?

Index

Low

Tree

None

Grass

Low

25%

Weed

None

Source:

wetter.com

Pollen forecast

Pollen

What is the pollen count in San Gregorio today?

Index

Low

Tree

None

Grass

Low

25%

Weed

None

Source:

wetter.com

Pollen forecast

History

Historic air quality graph for San Gregorio

34 AQI⁺ US

Good

16:00–17:00 Jun 30

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	Arlington Way	32
2	920 Bear Gulch Road	30
3	265 Old Spanish Trail	29
4	Alberta Glen	29
5	480 Tunitas Creek Road	28
6	Alexander Avenue	28
7	Belle Roche Court	28
8	Dirt Alpine	28
9	Alpine Road	23
10	Burlingame Hills	23

City ranking

Real-time USA AQI⁺ city ranking

#	Cities	AQI⁺ US
1	Redlands, Colorado	144
2	Flagstaff, Arizona	104
3	East Hartford, Connecticut	103
4	Jefferson, Colorado	103
5	Clark, Nevada	102
6	Las Vegas, Nevada	102
7	Berks County, Pennsylvania	98
8	Chandler, Arizona	98
9	Mesa, Arizona	98
10	Aspen, Colorado	97