Emeryville, California, United States Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
October Air Quality Analysis
Emeryville, California, United States
AQI Trends: Highest and Lowest
Same Day Analysis (26th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks the most lowest AQI at 19 of Good air quality, showing improvement over 2024, 2023, 2022 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 25th Oct - 26th Oct 2025
Emeryville, California, United States
7 AM25th Oct 2025
6 PM
6 AM26th Oct 2025
36AQI
11AQI
21AQI
11AQI
In the last 24 hours,
Emeryville's AQI reached its highest point of 36 at 10 AM during the Day, while the lowest point, 11, was recorded at 3 AM during the Night between 25th Oct and 26th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Emeryville, California, United States
--°C/°C
17°C13/22°C
18°C16/22°C
19°C17/22°C
19°C17/24°C
19°C17/23°C
18°C16/21°C
17°C14/22°C
18°C13/24°C
18°C12/25°C
21°C13/32°C
19°C14/27°C
17°C15/21°C
17°C15/21°C
17°C12/23°C
16°C12/21°C
16°C11/23°C
13°C10/18°C
13°C10/19°C
14°C12/17°C
14°C9/21°C
16°C10/23°C
18°C12/28°C
16°C13/21°C
19°C11/30°C
17°C12/23°C
15°C13/18°C
14°C11/20°C
15°C13/19°C
15°C13/18°C
14°C11/18°C
47AQI
41AQI
47AQI
43AQI
2025 Days Vs Air Quality
Emeryville, California, United States
90%
268
10%
31
Total number of days with different AQI categories in last 300 days in 2025 (65 days remaining)
Under WHO’s Safe Air Quality Limits: 90%
Health Risk Level:
Very Low
In 2025, 90% of 300 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
Emeryville, California, United States
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
63AQI
48AQI
44AQI
41AQI
45AQI
46AQI
25AQI
31AQI
47AQI
45AQI
34AQI
28AQI
35AQI
41AQI
56AQI
67AQI
50AQI
51AQI
59AQI
41AQI
48AQI
55AQI
51AQI
64AQI
49AQI
40AQI
49AQI
46AQI
40AQI
36AQI
39AQI
31AQI
24AQI
22AQI
22AQI
26AQI
27AQI
26AQI
27AQI
30AQI
36AQI
34AQI
26AQI
27AQI
34AQI
38AQI
41AQI
25AQI
32AQI
34AQI
31AQI
38AQI
40AQI
31AQI
26AQI
27AQI
45AQI
42AQI
57AQI
32AQI
27AQI
23AQI
24AQI
25AQI
28AQI
35AQI
41AQI
40AQI
34AQI
33AQI
28AQI
22AQI
23AQI
56AQI
43AQI
20AQI
21AQI
26AQI
18AQI
30AQI
25AQI
32AQI
24AQI
41AQI
24AQI
22AQI
29AQI
20AQI
21AQI
25AQI
23AQI
22AQI
26AQI
30AQI
32AQI
23AQI
17AQI
19AQI
25AQI
24AQI
24AQI
35AQI
44AQI
37AQI
32AQI
35AQI
24AQI
31AQI
34AQI
33AQI
45AQI
40AQI
51AQI
39AQI
23AQI
18AQI
30AQI
37AQI
43AQI
48AQI
43AQI
33AQI
26AQI
43AQI
33AQI
51AQI
46AQI
33AQI
43AQI
39AQI
29AQI
22AQI
23AQI
41AQI
44AQI
50AQI
33AQI
36AQI
37AQI
21AQI
25AQI
23AQI
29AQI
37AQI
23AQI
20AQI
37AQI
29AQI
24AQI
37AQI
53AQI
54AQI
46AQI
38AQI
52AQI
35AQI
28AQI
25AQI
18AQI
18AQI
24AQI
45AQI
50AQI
50AQI
51AQI
53AQI
48AQI
44AQI
40AQI
49AQI
48AQI
44AQI
43AQI
43AQI
31AQI
24AQI
29AQI
37AQI
37AQI
32AQI
27AQI
25AQI
23AQI
36AQI
35AQI
38AQI
34AQI
28AQI
23AQI
19AQI
23AQI
30AQI
33AQI
29AQI
22AQI
19AQI
21AQI
19AQI
19AQI
21AQI
21AQI
23AQI
17AQI
16AQI
16AQI
15AQI
15AQI
16AQI
18AQI
24AQI
25AQI
24AQI
22AQI
22AQI
40AQI
41AQI
33AQI
39AQI
29AQI
35AQI
36AQI
31AQI
28AQI
29AQI
22AQI
21AQI
40AQI
18AQI
16AQI
20AQI
27AQI
35AQI
49AQI
50AQI
32AQI
27AQI
29AQI
33AQI
43AQI
36AQI
26AQI
33AQI
44AQI
35AQI
43AQI
29AQI
27AQI
24AQI
26AQI
28AQI
22AQI
18AQI
19AQI
36AQI
33AQI
31AQI
24AQI
24AQI
33AQI
27AQI
32AQI
35AQI
38AQI
33AQI
33AQI
37AQI
42AQI
36AQI
44AQI
51AQI
45AQI
27AQI
17AQI
30AQI
44AQI
47AQI
56AQI
57AQI
54AQI
54AQI
53AQI
54AQI
51AQI
50AQI
50AQI
51AQI
44AQI
48AQI
52AQI
52AQI
61AQI
62AQI
56AQI
48AQI
35AQI
40AQI
24AQI
22AQI
19AQI
46AQI
32AQI
29AQI
31AQI
34AQI
39AQI
23AQI
32AQI
32AQI
47AQI
No. of days
202534AQI
Highest AQI recorded in
October47AQI
Lowest AQI recorded in
July23AQI
202432AQI
Highest AQI recorded in
December50AQI
Lowest AQI recorded in
August25AQI
202333AQI
Highest AQI recorded in
December38AQI
Lowest AQI recorded in
June28AQI
202236AQI
Highest AQI recorded in
January48AQI
Lowest AQI recorded in
July24AQI
202134AQI
Highest AQI recorded in
November40AQI
Lowest AQI recorded in
June26AQI
202041AQI
Highest AQI recorded in
September73AQI
Lowest AQI recorded in
July27AQI
Most & Least Polluted Years Over the Last 6 Years
Emeryville's annual 2025 AQI (34) shows an average percentage change of -1.6% (improved AQI) compared to previous years: 2020 (41), 2021 (34), 2022 (36), 2023 (33), 2024 (32).