Brentwood Darlington, Portland, Oregon, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
August Air Quality Analysis
Brentwood Darlington, Portland, Oregon, United States
AQI Trends: Highest and Lowest
Same Day Analysis (5th August ):
On this day, AQI across the 1 years varied significantly: 2025 ranks 1st highest AQI at 38 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 5th Aug - 6th Aug 2025
Brentwood Darlington, Portland, Oregon, United States
5 AM5th Aug 2025
8 PM
4 AM6th Aug 2025
38AQI
33AQI
36AQI
19AQI
In the last 24 hours,
Brentwood Darlington's AQI reached its highest point of 38 at 10 AM during the Day, while the lowest point, 19, was recorded at 4 AM during the Night between 5th Aug and 6th Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Brentwood Darlington, Portland, Oregon, United States
24°C16/33°C
24°C17/34°C
21°C17/26°C
21°C17/24°C
23°C16/33°C
24°C18/33°C
27°C19/36°C
21°C16/29°C
24°C15/35°C
29°C22/37°C
24°C16/32°C
22°C17/29°C
19°C15/25°C
18°C14/22°C
20°C16/23°C
22°C15/30°C
24°C17/34°C
23°C17/31°C
19°C15/24°C
17°C14/21°C
20°C15/28°C
22°C15/31°C
25°C17/35°C
24°C18/32°C
22°C17/30°C
22°C17/30°C
19°C17/22°C
18°C15/22°C
19°C16/24°C
21°C15/29°C
--°C/°C
20AQI
20AQI
20AQI
20AQI
2025 Days Vs Air Quality
Brentwood Darlington, Portland, Oregon, United States
100%
133
Total number of days with different AQI categories in last 218 days in 2025 (147 days remaining)
Under WHO’s Safe Air Quality Limits: 100%
Health Risk Level:
Very Low
In 2025, 100% of 218 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
Brentwood Darlington, Portland, Oregon, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
18AQI
16AQI
16AQI
16AQI
20AQI
16AQI
23AQI
18AQI
22AQI
27AQI
18AQI
30AQI
16AQI
15AQI
16AQI
22AQI
17AQI
17AQI
19AQI
19AQI
19AQI
21AQI
20AQI
21AQI
21AQI
19AQI
15AQI
16AQI
19AQI
25AQI
31AQI
25AQI
22AQI
14AQI
16AQI
19AQI
25AQI
22AQI
14AQI
15AQI
17AQI
20AQI
20AQI
18AQI
23AQI
23AQI
15AQI
19AQI
18AQI
19AQI
19AQI
21AQI
16AQI
15AQI
17AQI
12AQI
14AQI
19AQI
16AQI
18AQI
18AQI
15AQI
16AQI
19AQI
15AQI
18AQI
17AQI
16AQI
19AQI
21AQI
15AQI
16AQI
19AQI
19AQI
28AQI
29AQI
27AQI
31AQI
27AQI
19AQI
18AQI
21AQI
22AQI
19AQI
15AQI
16AQI
16AQI
18AQI
17AQI
23AQI
29AQI
30AQI
17AQI
15AQI
14AQI
18AQI
21AQI
19AQI
14AQI
14AQI
16AQI
23AQI
17AQI
18AQI
20AQI
15AQI
14AQI
18AQI
17AQI
20AQI
15AQI
20AQI
22AQI
28AQI
28AQI
20AQI
20AQI
22AQI
23AQI
20AQI
19AQI
17AQI
17AQI
22AQI
21AQI
18AQI
22AQI
22AQI
18AQI
16AQI
19AQI
25AQI
38AQI
17AQI
20AQI
18AQI
21AQI
19AQI
23AQI
No. of days
202519AQI
Highest AQI recorded in
August23AQI
Lowest AQI recorded in
March17AQI
Most & Least Polluted Years Over the Last 1 Years
Brentwood Darlington's annual 2025 AQI (19) shows an average percentage change of NaN% (improved AQI) compared to previous years: .