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Washington Air Quality Index (AQI) | Air Pollution

Real-time PM2.5, PM10 air pollution level in United States

Last Updated: 2025-10-11 01:34:12 PM (Local Time)

location image
Live AQI
39(AQI-US)
Air Quality is
Good
pm10 :  23 µg/m³
PM2.5 :  7 µg/m³
Good
050
Moderate
100
Poor
150
Unhealthy
200
Severe
300
Hazardous
301+
aqi good level.webp in Washington
overcast

12 °C

Overcast
Humidity
Humidity100 %

Wind Speed
Wind Speed8 km/h

UV Index
UV Index0
Last Updated: 2025-10-11 01:34:12 PM (Local Time)


Map

Washington

Major Air Pollutants

Washington

AQI Graph

Historical Air Quality Data

Washington

Washington
AQI
.
09-10-2025Time10-10-2025
42
Min.at 10:04 PM on 10th Oct
58
Max.at 11:04 AM on 10th Oct

Download 2024 Annual Data

World Air Quality Report

Globe

Washington's Cities

Real-time Air Pollution Level

Location
Status
AQI
PM2.5(µg/m³)
PM10(µg/m³)
Temp.(°C)
Humi.(%)
Good
49
9
18
14
100
Moderate
56
12
51
15
62
Good
46
9
18
13
98
Good
18
2
18
16
99
Good
44
8
15
12
100
Good
25
4
18
14
92
Good
50
9
32
12
100
Good
21
2
23
12
100
Good
33
6
21
17
74
Good
44
8
27
12
100
Moderate
57
12
23
16
72
Good
42
8
40
12
75
Moderate
55
11
14
19
50
Good
40
3
43
15
75
Moderate
54
10
38
10
66
Good
38
7
16
14
78
Moderate
56
12
18
11
100
Moderate
53
10
22
9
100
Good
33
6
16
14
75
Good
44
8
41
14
88
Moderate
53
10
10
16
91
Good
14
2
15
16
96
Good
50
9
20
10
98
Good
33
6
19
16
76
Good
18
2
19
14
84
Good
42
8
22
11
100
Good
44
8
14
12
75
Good
16
2
18
14
99
Good
33
6
11
11
82
Moderate
60
14
51
16
72
Good
12
2
14
16
99
Moderate
58
13
22
13
100
Good
33
6
22
11
100
Moderate
52
10
17
12
100
Moderate
52
3
58
16
70
Good
28
5
9
16
87
Good
28
5
17
13
94
Good
22
4
15
12
100
Moderate
59
14
18
14
69
Good
50
9
22
13
98
Good
39
7
18
11
72
Good
50
9
24
15
90
Good
28
5
16
14
100
Moderate
55
11
23
13
100
Good
44
8
15
13
100
Moderate
54
11
17
17
63
Good
33
6
16
10
79
Moderate
57
12
24
12
100
Good
38
7
22
13
96
Good
28
5
27
17
94
Good
39
7
15
12
79
Moderate
56
12
14
12
82
Moderate
55
11
17
14
90
Good
44
8
15
17
55
Good
45
7
49
14
69
Good
12
2
13
11
100
Good
18
3
15
16
98
Good
44
8
20
10
73
Good
47
8
22
12
100
Moderate
62
15
15
13
78
Good
22
4
15
15
94
Good
47
2
50
15
78
Good
34
2
38
15
82
Good
42
8
37
16
74
Good
23
4
18
13
100
Good
50
9
36
12
94
Good
18
2
19
12
96
Good
17
2
18
15
98
Good
44
8
14
13
65
Moderate
58
13
23
12
100
Good
26
5
21
12
72
Good
50
9
27
11
91
Moderate
58
13
34
17
55
Good
28
5
15
13
65
Good
13
2
14
16
86
Good
50
9
14
13
100
Good
44
8
26
14
68

United States's Metro Cities

Air Quality Index

Health Advice For People Living In

Washington

0Cigarettes per day

Weekly 0 Cigarettes
Monthly 0 Cigarettes

Breathe easy and get active! The air quality is perfect for enjoying outdoor activities.

Source:

Berkeley Earth

Disclaimer: This cigarette-equivalent estimate is based on the average PM2.5 concentration over the last 24 hours, assuming continuous exposure during that time.

Solutions for Current AQI

  • Air Purifier
    Air PurifierTurn Off
  • Car Filter
    Car FilterAdvisable
  • N95 Mask
    N95 MaskAdvisable
  • Stay Indoor
    Stay IndoorAdvisable


As per the current AQI, turn off the air purifier.

Get an Air Purifier

Prevent Health Problems: Understand Your Risks

Washington

  • asthma due to air pollution in WashingtonAsthma
  • heart due to air pollution in WashingtonHeart Issues
  • allergy due to air pollution in WashingtonAllergies
  • sinus due to air pollution in WashingtonSinus
  • flu due to air pollution in WashingtonCold/Flu
  • copd due to air pollution in WashingtonChronic (COPD)
asthma due to air pollution in Washington

Low Chances of Asthma

Asthma

Risk of Asthma symptoms is Low when AQI is Good (0-50)

Mild symptoms such as slight wheezing, occasional cough, and minor shortness of breath

Do's :

  • Keep track of air quality to plan outdoor activities safely.

  • Drink water to keep airways moist and reduce irritation.

  • Include non-allergenic fruits and vegetables that support overall lung health, like apples, pears, and spinach.

Don'ts :

  • Skip medications that is prescribed by your doctor.

  • Engage in outdoor activities in early morning during high pollen hours.

Disclaimer: The above health risks are precautionary suggestions based on current AQI levels. You may not feel the effects immediately, but prolonged exposure to air pollution can contribute to these health conditions over time. AQI.IN is neither a medical expert nor a provider of medical advice. Please consult a doctor if you experience any of the above similar symptoms.

Most Polluted Cities 2025

United States

Analyze the real-time most air polluted cities in the country.

Washington's AQI Data Analytics Solutions

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aqi air quality app for Washington
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Personalized health advice as per current AQI.


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Air Quality FAQs

at Washington

Frequently Asked Questions About Air Quality

What is the current AQI level in Washington?

The current real-time AQI level in Washington is 39 (Good). This was last updated 2025-10-11 01:34:12 PM (Local Time).

When was the best AQI level in Washington in the last 24 hours?

The best AQI level was 42 (Good) at 10:04 PM, Oct 10, 2025 (Local Time) during the last 24 hours.

When was the worst AQI level in Washington in the last 24 hours?

The worst AQI level was 58 (Moderate) at 11:04 AM, Oct 10, 2025 (Local Time) during the last 24 hours.

What is the current trend of AQI levels in Washington during last 24 hours?

The AQI levels in Washington have been fluctuating throughout the last 24 hours. The levels have increased by highest 58 at 11:04 AM, Oct 10, 2025 (Local Time), lowest 42 at 10:04 PM, Oct 10, 2025 (Local Time).

What actions are recommended as per the current AQI level in Washington?

The air quality is satisfactory, and air pollution poses little or no risk. No special precautions are needed; enjoy outdoor activities freely.