WorldArrow icon
Arrow iconContra Costa County

Air quality in Contra Costa County

Air quality index (AQI⁺) and PM2.5 air pollution in Contra Costa County • 15:00, May 10 Local time

26

US AQI⁺

Good

face expression based on aqi value

Main pollutant:

PM2.5

4.7 µg/m³

weather condition icon

23°

wind direction icon

17 km/h

weather humid icon

54 %

Hourly forecast

Contra Costa County air quality index (AQI⁺) forecast

Now

26

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 244 degree

17

km/h

Humidity icon

54%

16:00

27

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 242 degree

18

km/h

Humidity icon

52%

17:00

28

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 238 degree

18

km/h

Humidity icon

53%

18:00

29

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 234 degree

17

km/h

Humidity icon

58%

19:00

29

Weather icon

18°

IQAir AirVisual Air Quality Map Wind rotating 230 degree

17

km/h

Humidity icon

65%

20:00

31

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 226 degree

16

km/h

Humidity icon

69%

21:00

32

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 225 degree

14

km/h

Humidity icon

65%

22:00

33

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 226 degree

12

km/h

Humidity icon

63%

23:00

32

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 225 degree

10

km/h

Humidity icon

68%

Mon

00:00

33

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 225 degree

10

km/h

Humidity icon

69%

01:00

34

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 223 degree

10

km/h

Humidity icon

70%

02:00

40

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 221 degree

9

km/h

Humidity icon

69%

03:00

41

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 219 degree

8

km/h

Humidity icon

65%

04:00

41

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 209 degree

7

km/h

Humidity icon

60%

05:00

42

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 204 degree

5

km/h

Humidity icon

57%

06:00

42

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 211 degree

6

km/h

Humidity icon

55%

07:00

42

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 214 degree

6

km/h

Humidity icon

59%

08:00

39

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 228 degree

5

km/h

Humidity icon

65%

09:00

39

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 245 degree

5

km/h

Humidity icon

61%

10:00

39

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 277 degree

4

km/h

Humidity icon

52%

11:00

53

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 306 degree

4

km/h

Humidity icon

45%

12:00

53

Weather icon

26°

IQAir AirVisual Air Quality Map Wind rotating 337 degree

5

km/h

Humidity icon

42%

13:00

53

Weather icon

28°

IQAir AirVisual Air Quality Map Wind rotating 336 degree

6

km/h

Humidity icon

43%

14:00

56

Weather icon

29°

IQAir AirVisual Air Quality Map Wind rotating 310 degree

8

km/h

Humidity icon

43%

15:00

56

Weather icon

29°

IQAir AirVisual Air Quality Map Wind rotating 294 degree

10

km/h

Humidity icon

41%

16:00

56

Weather icon

30°

IQAir AirVisual Air Quality Map Wind rotating 287 degree

12

km/h

Humidity icon

38%

17:00

58

Weather icon

29°

IQAir AirVisual Air Quality Map Wind rotating 282 degree

14

km/h

Humidity icon

38%

18:00

58

Weather icon

26°

IQAir AirVisual Air Quality Map Wind rotating 263 degree

15

km/h

Humidity icon

35%

19:00

58

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 252 degree

13

km/h

Humidity icon

44%

20:00

60

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 237 degree

13

km/h

Humidity icon

54%

21:00

60

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 225 degree

13

km/h

Humidity icon

55%

22:00

60

Weather icon

19°

IQAir AirVisual Air Quality Map Wind rotating 223 degree

13

km/h

Humidity icon

57%

23:00

60

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 231 degree

11

km/h

Humidity icon

62%

Tue

00:00

60

Weather icon

19°

IQAir AirVisual Air Quality Map Wind rotating 236 degree

11

km/h

Humidity icon

66%

01:00

60

Weather icon

19°

IQAir AirVisual Air Quality Map Wind rotating 234 degree

10

km/h

Humidity icon

69%

02:00

63

Weather icon

19°

IQAir AirVisual Air Quality Map Wind rotating 236 degree

9

km/h

Humidity icon

71%

03:00

63

Weather icon

18°

IQAir AirVisual Air Quality Map Wind rotating 237 degree

8

km/h

Humidity icon

74%

04:00

63

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 230 degree

9

km/h

Humidity icon

74%

05:00

63

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 229 degree

9

km/h

Humidity icon

75%

06:00

63

Weather icon

17°

IQAir AirVisual Air Quality Map Wind rotating 229 degree

9

km/h

Humidity icon

76%

07:00

63

Weather icon

18°

IQAir AirVisual Air Quality Map Wind rotating 234 degree

9

km/h

Humidity icon

78%

08:00

61

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 245 degree

11

km/h

Humidity icon

69%

09:00

61

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 248 degree

12

km/h

Humidity icon

61%

10:00

61

Weather icon

24°

IQAir AirVisual Air Quality Map Wind rotating 252 degree

13

km/h

Humidity icon

54%

11:00

55

Weather icon

25°

IQAir AirVisual Air Quality Map Wind rotating 254 degree

14

km/h

Humidity icon

48%

12:00

55

Weather icon

25°

IQAir AirVisual Air Quality Map Wind rotating 260 degree

14

km/h

Humidity icon

46%

13:00

55

Weather icon

26°

IQAir AirVisual Air Quality Map Wind rotating 250 degree

18

km/h

Humidity icon

37%

14:00

59

Weather icon

26°

IQAir AirVisual Air Quality Map Wind rotating 248 degree

19

km/h

Humidity icon

35%

15:00

59

Weather icon

25°

IQAir AirVisual Air Quality Map Wind rotating 246 degree

22

km/h

Humidity icon

36%

16:00

59

Weather icon

23°

IQAir AirVisual Air Quality Map Wind rotating 241 degree

23

km/h

Humidity icon

39%

17:00

59

Weather icon

21°

IQAir AirVisual Air Quality Map Wind rotating 239 degree

23

km/h

Humidity icon

44%

18:00

59

Weather icon

22°

IQAir AirVisual Air Quality Map Wind rotating 227 degree

13

km/h

Humidity icon

34%

19:00

59

Weather icon

19°

IQAir AirVisual Air Quality Map Wind rotating 216 degree

12

km/h

Humidity icon

48%

20:00

52

Weather icon

15°

IQAir AirVisual Air Quality Map Wind rotating 213 degree

12

km/h

Humidity icon

64%

21:00

52

Weather icon

13°

IQAir AirVisual Air Quality Map Wind rotating 210 degree

13

km/h

Humidity icon

75%

22:00

52

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 207 degree

12

km/h

Humidity icon

78%

23:00

30

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 208 degree

12

km/h

Humidity icon

79%

Wed

00:00

30

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 204 degree

11

km/h

Humidity icon

80%

01:00

30

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 206 degree

11

km/h

Humidity icon

79%

02:00

31

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 203 degree

11

km/h

Humidity icon

78%

03:00

31

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 197 degree

11

km/h

Humidity icon

69%

04:00

31

Weather icon

12°

IQAir AirVisual Air Quality Map Wind rotating 196 degree

10

km/h

Humidity icon

65%

05:00

29

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 212 degree

10

km/h

Humidity icon

68%

06:00

29

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 224 degree

10

km/h

Humidity icon

68%

07:00

29

Weather icon

11°

IQAir AirVisual Air Quality Map Wind rotating 223 degree

9

km/h

Humidity icon

68%

08:00

27

Weather icon

14°

IQAir AirVisual Air Quality Map Wind rotating 223 degree

10

km/h

Humidity icon

65%

09:00

27

Weather icon

16°

IQAir AirVisual Air Quality Map Wind rotating 229 degree

10

km/h

Humidity icon

61%

10:00

27

Weather icon

18°

IQAir AirVisual Air Quality Map Wind rotating 230 degree

11

km/h

Humidity icon

56%

11:00

19

Weather icon

19°

IQAir AirVisual Air Quality Map Wind rotating 237 degree

18

km/h

Humidity icon

53%

12:00

19

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 237 degree

19

km/h

Humidity icon

50%

13:00

19

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 241 degree

23

km/h

Humidity icon

49%

14:00

19

Weather icon

20°

IQAir AirVisual Air Quality Map Wind rotating 239 degree

26

km/h

Humidity icon

50%

Daily forecast

|

Contra Costa County air quality index (AQI⁺) forecast

Today

26

Weather icon

23°

10°

IQAir AirVisual Air Quality Map Wind rotating 225 degree

21

km/h

Humidity icon

67%

Mon

43

Weather icon

30°

15°

IQAir AirVisual Air Quality Map Wind rotating 225 degree

15

km/h

Humidity icon

49%

Tue

60

Weather icon

26°

12°

IQAir AirVisual Air Quality Map Wind rotating 225 degree

23

km/h

Humidity icon

54%

Air pollutants

What is the current air quality in Contra Costa County?

IQAir Check icon

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

air quality map

Real-time Contra Costa County air pollution map

Health recommendations

common.healthRecommendationComp.icons.exerciseAlt

Enjoy outdoor activities

common.healthRecommendationComp.icons.windowAlt

Open your windows to bring clean, fresh air indoors

Get a monitor

Protect yourself from air pollution in Contra Costa County

SHOP IQAIR PRODUCTS

Atem_X.png

Air Purifiers

FaceMasks.png

Face Masks

Air_Monitors.png

Air Quality Monitors

Pollen

What is the pollen count in Contra Costa County today?

Index

Pollen global icon

High

Pollen tree icon

Tree

Low

25%
Pollen grass icon

Grass

High

75%
Pollen weed icon

Weed

Moderate

50%

Source:

wetter.com
Pollen forecast in Contra Costa County

Health recommendations

common.healthRecommendationComp.icons.exerciseAlt

Enjoy outdoor activities

common.healthRecommendationComp.icons.windowAlt

Open your windows to bring clean, fresh air indoors

Get a monitor
air quality map

Real-time Contra Costa County air pollution map

Pollen

What is the pollen count in Contra Costa County today?

Index

Pollen global icon

High

Pollen tree icon

Tree

Low

25%
Pollen grass icon

Grass

High

75%
Pollen weed icon

Weed

Moderate

50%

Source:

wetter.com
Pollen forecast in Contra Costa County

Protect yourself from air pollution in Contra Costa County

SHOP IQAIR PRODUCTS

Atem_X.png

Air Purifiers

FaceMasks.png

Face Masks

Air_Monitors.png

Air Quality Monitors

Most polluted locations near Contra Costa County

Worldwide AQI⁺ rankingArrow icon

Station ranking

Real-time AQI⁺ station ranking for stations in Contra Costa County

#StationsAQI⁺ US
1
The national flag of USA

1115 Bear Creek Rd

26

City ranking

Real-time USA AQI⁺ city ranking

#CitiesAQI⁺ US
1
The national flag of USA

Jersey City, New Jersey

92

2
The national flag of USA

Hoboken, New Jersey

86

3
The national flag of USA

Detroit Lakes, Minnesota

85

4
The national flag of USA

Glendale, California

85

5
The national flag of USA

Burbank, Los Angeles County, California

83

6
The national flag of USA

Santa Monica, California

82

7
The national flag of USA

West Hollywood, California

80

8
The national flag of USA

Los Angeles, California

79

9
The national flag of USA

East Los Angeles, California

78

10
The national flag of USA

La Crescenta-Montrose, California

77

History

Historic air quality graph for Contra Costa County

26 AQI⁺ US
Good
14:00–15:00 May 10 Local time
AQI⁺ US

History

Historic air quality graph for Contra Costa County

26 AQI⁺ US
Good
14:00–15:00 May 10 Local time
AQI⁺ US

Most polluted locations near Contra Costa County

Worldwide AQI⁺ rankingArrow icon

Station ranking

Real-time AQI⁺ station ranking for stations in Contra Costa County

#StationsAQI⁺ US
1
The national flag of USA

1115 Bear Creek Rd

26

City ranking

Real-time USA AQI⁺ city ranking

#CitiesAQI⁺ US
1
The national flag of USA

Jersey City, New Jersey

92

2
The national flag of USA

Hoboken, New Jersey

86

3
The national flag of USA

Detroit Lakes, Minnesota

85

4
The national flag of USA

Glendale, California

85

5
The national flag of USA

Burbank, Los Angeles County, California

83

6
The national flag of USA

Santa Monica, California

82

7
The national flag of USA

West Hollywood, California

80

8
The national flag of USA

Los Angeles, California

79

9
The national flag of USA

East Los Angeles, California

78

10
The national flag of USA

La Crescenta-Montrose, California

77

Measure your own air quality

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

Get a monitorHow to contribute
Polluted skies over Hanoi.
external link icon

May 10, 2026: Hanoi among top 10 most polluted cities in the world

external link icon

May 10, 2026: Jakarta among top 10 most polluted cities in the world

Wildfire engulfs a dense forest
external link icon

Wildfire Map Spotlight: Pineland Road Fire, Georgia

Begin your journey for cleaner air #IQAir

IQAir Instagram
IQAir Logo
IQAir InstagramVisit us
IQAir Twitter
IQAir Logo
IQAir TwitterVisit us
IQAir Tiktok
IQAir Logo
IQAir TiktokVisit us
IQAir Facebook
IQAir Logo
IQAir FacebookVisit us

Where is the cleanest air quality in Contra Costa County?