ALERT Hospital Armauer Hansen Research Institute, Addis Ababa, Adis Abeba, Ethiopia Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
September Air Quality Analysis
ALERT Hospital Armauer Hansen Research Institute, Addis Ababa, Adis Abeba, Ethiopia
AQI Trends: Highest and Lowest
Same Day Analysis (28th September ):
On this day, AQI across the 3 years varied significantly: 2025 ranks 1st highest AQI at 66 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 28th Sep - 29th Sep 2025
ALERT Hospital Armauer Hansen Research Institute, Addis Ababa, Adis Abeba, Ethiopia
6 AM28th Sep 2025
6 PM
5 AM29th Sep 2025
68AQI
45AQI
173AQI
54AQI
In the last 24 hours,
ALERT Hospital Armauer Hansen Research Institute's AQI reached its highest point of 173 at 11 PM during the Night, while the lowest point, 45, was recorded at 5 PM during the Day between 28th Sep and 29th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
ALERT Hospital Armauer Hansen Research Institute, Addis Ababa, Adis Abeba, Ethiopia
14°C11/19°C
14°C10/19°C
15°C11/19°C
15°C12/18°C
13°C11/16°C
15°C10/20°C
15°C12/20°C
15°C12/19°C
15°C13/18°C
15°C13/19°C
15°C13/19°C
15°C11/19°C
14°C12/18°C
14°C10/18°C
14°C10/18°C
14°C11/19°C
15°C10/20°C
16°C12/21°C
15°C10/21°C
15°C12/19°C
15°C11/20°C
15°C12/18°C
14°C12/18°C
15°C11/18°C
15°C11/20°C
15°C11/19°C
15°C11/20°C
15°C10/19°C
15°C11/21°C
14°C11/19°C
--°C/°C
70AQI
61AQI
69AQI
61AQI
2025 Days Vs Air Quality
ALERT Hospital Armauer Hansen Research Institute, Addis Ababa, Adis Abeba, Ethiopia
4%
11
94%
255
2%
5
Total number of days with different AQI categories in last 272 days in 2025 (93 days remaining)
Under WHO’s Safe Air Quality Limits: 4%
Health Risk Level:
Extreme
In 2025, 4% of 272 days were within WHO’s safe air quality limits. The risk of health issues is Extreme, potentially causing respiratory problems, heart disease, skin issues, and stress, especially for children, the elderly, and those with pre-existing conditions.
Annual Air Quality Insights
ALERT Hospital Armauer Hansen Research Institute, Addis Ababa, Adis Abeba, Ethiopia
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
77AQI
74AQI
89AQI
93AQI
85AQI
91AQI
97AQI
84AQI
88AQI
83AQI
80AQI
97AQI
80AQI
77AQI
105AQI
89AQI
92AQI
93AQI
79AQI
69AQI
77AQI
76AQI
77AQI
79AQI
87AQI
91AQI
93AQI
88AQI
88AQI
72AQI
75AQI
82AQI
74AQI
85AQI
81AQI
85AQI
83AQI
77AQI
84AQI
78AQI
71AQI
72AQI
64AQI
61AQI
51AQI
58AQI
65AQI
62AQI
60AQI
64AQI
62AQI
57AQI
55AQI
56AQI
61AQI
56AQI
59AQI
58AQI
64AQI
61AQI
61AQI
62AQI
72AQI
69AQI
73AQI
69AQI
69AQI
54AQI
53AQI
65AQI
62AQI
80AQI
115AQI
100AQI
106AQI
106AQI
93AQI
94AQI
106AQI
99AQI
93AQI
79AQI
70AQI
74AQI
71AQI
75AQI
77AQI
83AQI
75AQI
74AQI
73AQI
75AQI
74AQI
70AQI
64AQI
63AQI
68AQI
72AQI
70AQI
65AQI
66AQI
70AQI
67AQI
64AQI
64AQI
63AQI
67AQI
60AQI
68AQI
68AQI
64AQI
64AQI
64AQI
65AQI
68AQI
69AQI
66AQI
70AQI
69AQI
67AQI
75AQI
61AQI
67AQI
66AQI
67AQI
69AQI
66AQI
61AQI
57AQI
59AQI
50AQI
73AQI
48AQI
62AQI
56AQI
62AQI
64AQI
61AQI
54AQI
49AQI
53AQI
60AQI
52AQI
58AQI
54AQI
52AQI
59AQI
51AQI
44AQI
55AQI
51AQI
52AQI
51AQI
53AQI
55AQI
61AQI
61AQI
63AQI
44AQI
49AQI
54AQI
58AQI
63AQI
60AQI
65AQI
61AQI
57AQI
58AQI
55AQI
52AQI
56AQI
63AQI
67AQI
59AQI
56AQI
49AQI
49AQI
52AQI
55AQI
55AQI
50AQI
52AQI
55AQI
49AQI
51AQI
52AQI
52AQI
49AQI
53AQI
52AQI
53AQI
57AQI
56AQI
54AQI
54AQI
57AQI
60AQI
61AQI
62AQI
63AQI
62AQI
62AQI
63AQI
63AQI
61AQI
61AQI
62AQI
56AQI
56AQI
56AQI
64AQI
68AQI
69AQI
74AQI
72AQI
67AQI
66AQI
69AQI
65AQI
65AQI
62AQI
64AQI
65AQI
63AQI
63AQI
64AQI
60AQI
59AQI
59AQI
61AQI
60AQI
58AQI
52AQI
55AQI
54AQI
55AQI
60AQI
63AQI
58AQI
60AQI
60AQI
62AQI
67AQI
65AQI
72AQI
77AQI
76AQI
72AQI
71AQI
70AQI
67AQI
67AQI
65AQI
63AQI
61AQI
66AQI
68AQI
67AQI
67AQI
64AQI
63AQI
59AQI
57AQI
54AQI
53AQI
55AQI
60AQI
75AQI
69AQI
78AQI
66AQI
85AQI
67AQI
79AQI
67AQI
59AQI
56AQI
57AQI
62AQI
66AQI
No. of days
202566AQI
Highest AQI recorded in
January85AQI
Lowest AQI recorded in
June56AQI
202476AQI
Highest AQI recorded in
April107AQI
Lowest AQI recorded in
October25AQI
202396AQI
Highest AQI recorded in
September143AQI
Lowest AQI recorded in
January80AQI
202292AQI
Highest AQI recorded in
October98AQI
Lowest AQI recorded in
November89AQI
Most & Least Polluted Years Over the Last 4 Years
ALERT Hospital Armauer Hansen Research Institute's annual 2025 AQI (66) shows an average percentage change of -23.5% (improved AQI) compared to previous years: 2022 (92), 2023 (96), 2024 (76).