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Air quality near Sign Hill Park, South San Francisco

Air quality index (AQI⁺) and PM2.5 air pollution near Sign Hill Park, South San Francisco • 1.1K Followers • 03:00, May 21

Data source: PurpleAir

US AQI⁺

Good

Main pollutant:

PM2.5

5 µg/m³

10°

14 km/h

97 %

Data source: PurpleAir

Hourly forecast

Sign Hill Park, South San Francisco air quality index (AQI⁺) forecast

Now

10°

km/h

97%

04:00

9°

km/h

97%

05:00

9°

km/h

99%

06:00

90%

9°

km/h

98%

07:00

90%

9°

km/h

97%

08:00

90%

10°

km/h

96%

09:00

11°

km/h

95%

10:00

90%

12°

km/h

94%

11:00

13°

km/h

93%

12:00

13°

km/h

92%

13:00

14°

km/h

91%

14:00

15°

km/h

66%

15:00

15°

km/h

66%

16:00

15°

km/h

70%

17:00

14°

km/h

73%

18:00

13°

km/h

81%

19:00

12°

km/h

87%

20:00

11°

km/h

93%

21:00

10°

km/h

94%

22:00

10°

km/h

94%

23:00

10°

km/h

95%

Fri

00:00

9°

km/h

96%

01:00

9°

km/h

97%

02:00

9°

km/h

98%

03:00

8°

km/h

98%

04:00

90%

8°

km/h

98%

05:00

90%

8°

km/h

98%

06:00

8°

km/h

98%

07:00

90%

8°

km/h

97%

08:00

90%

9°

km/h

96%

09:00

11°

km/h

95%

10:00

90%

12°

km/h

94%

11:00

14°

km/h

73%

12:00

15°

km/h

68%

13:00

15°

km/h

68%

14:00

15°

km/h

69%

15:00

15°

km/h

70%

16:00

15°

km/h

72%

17:00

14°

km/h

76%

18:00

13°

km/h

83%

19:00

12°

km/h

88%

20:00

11°

km/h

92%

21:00

11°

km/h

94%

22:00

10°

km/h

95%

23:00

10°

km/h

96%

Sat

00:00

10°

km/h

97%

01:00

10°

km/h

98%

02:00

9°

km/h

99%

03:00

9°

km/h

98%

04:00

9°

km/h

99%

05:00

9°

km/h

99%

06:00

0°

km/h

07:00

15°

km/h

72%

08:00

16°

km/h

67%

09:00

16°

km/h

67%

10:00

17°

km/h

63%

11:00

16°

km/h

67%

12:00

0°

km/h

13:00

17°

km/h

63%

14:00

17°

km/h

63%

15:00

18°

km/h

60%

16:00

18°

km/h

60%

17:00

18°

km/h

60%

18:00

0°

km/h

19:00

16°

km/h

67%

20:00

15°

km/h

72%

21:00

14°

km/h

77%

22:00

14°

km/h

77%

23:00

14°

km/h

77%

Sun

00:00

0°

km/h

01:00

13°

km/h

82%

02:00

13°

km/h

82%

Daily forecast

Sign Hill Park, South San Francisco air quality index (AQI⁺) forecast

Today

15°

9°

km/h

87%

Fri

15°

8°

km/h

84%

Sat

18°

14°

km/h

67%

Air pollutants

What is the current air quality near Sign Hill Park?

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

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Real-time Sign Hill Park, South San Francisco air pollution map

Pollen

What is the pollen count in Sign Hill Park today?

Index

Moderate

Tree

Low

25%

Grass

Moderate

50%

Weed

Moderate

50%

Source:

wetter.com

Pollen forecast

Pollen

What is the pollen count in Sign Hill Park today?

Index

Moderate

Tree

Low

25%

Grass

Moderate

50%

Weed

Moderate

50%

Source:

wetter.com

Pollen forecast

History

Historic air quality graph for Sign Hill Park

28 AQI⁺ US

Good

02:00–03:00 May 21

AQI⁺ US

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Most polluted locations near Sign Hill Park, South San Francisco

Worldwide AQI⁺ ranking

Station ranking

Real-time Sign Hill Park AQI⁺ station ranking

#	Stations	AQI⁺ US
1	Oyster Point	64
2	395 Holly Ave	55
3	El Camino High School Outside	50
4	Buxton Avenue	48
5	Stonegate Drive	44
6	Sign Hill Park	28
7	Leix Way	22
8	121 Oyster Point Blvd	19
9	B9 North AHU-5012	17
10	South San Francisco	3

City ranking

Real-time USA AQI⁺ city ranking

#	Cities	AQI⁺ US
1	Imperial Beach, California	86
2	Aliso Viejo, California	80
3	Jurupa Valley, California	73
4	El Paso, Texas	72
5	Gardena, California	71
6	La Mirada, California	71
7	Oceanside, California	68
8	Angels, California	66
9	Anaheim, California	63
10	Murrieta, California	63