Aleea Secuilor, Bucharest, Bucuresti, Romania 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
Aleea Secuilor, Bucharest, Bucuresti, Romania
AQI Trends: Highest and Lowest
Same Day Analysis (17th September ):
On this day, AQI across the 2 years varied significantly: 2025 ranks 1st highest AQI at 32 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 17th Sep - 18th Sep 2025
Aleea Secuilor, Bucharest, Bucuresti, Romania
6 AM17th Sep 2025
7 PM
5 AM18th Sep 2025
37AQI
26AQI
46AQI
28AQI
In the last 24 hours,
Aleea Secuilor's AQI reached its highest point of 46 at 5 AM during the Night, while the lowest point, 26, was recorded at 5 PM during the Day between 17th Sep and 18th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Aleea Secuilor, Bucharest, Bucuresti, Romania
19°C17/21°C
23°C16/31°C
27°C20/35°C
26°C20/33°C
21°C18/24°C
22°C17/28°C
19°C13/25°C
22°C15/29°C
23°C16/31°C
24°C17/31°C
24°C16/33°C
27°C19/36°C
23°C20/28°C
24°C18/31°C
27°C20/34°C
28°C22/35°C
27°C21/34°C
25°C17/32°C
24°C17/31°C
24°C18/30°C
24°C17/30°C
25°C18/31°C
23°C18/30°C
23°C19/28°C
22°C19/27°C
20°C18/25°C
21°C16/27°C
22°C15/28°C
22°C16/28°C
18°C15/20°C
--°C/°C
37AQI
37AQI
38AQI
38AQI
2025 Days Vs Air Quality
Aleea Secuilor, Bucharest, Bucuresti, Romania
63%
165
37%
95
Total number of days with different AQI categories in last 261 days in 2025 (104 days remaining)
Under WHO’s Safe Air Quality Limits: 63%
Health Risk Level:
Moderate
In 2025, 63% of 261 days were within WHO’s safe air quality limits, and 37% exceeded them. The risk of health issues is Moderate, particularly for individuals with respiratory or heart conditions.
Annual Air Quality Insights
Aleea Secuilor, Bucharest, Bucuresti, Romania
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
65AQI
70AQI
68AQI
65AQI
62AQI
62AQI
63AQI
65AQI
72AQI
74AQI
69AQI
66AQI
68AQI
62AQI
61AQI
62AQI
63AQI
64AQI
63AQI
68AQI
73AQI
73AQI
74AQI
76AQI
74AQI
74AQI
73AQI
73AQI
73AQI
72AQI
70AQI
64AQI
61AQI
60AQI
60AQI
61AQI
61AQI
58AQI
58AQI
57AQI
57AQI
58AQI
59AQI
62AQI
61AQI
62AQI
59AQI
57AQI
57AQI
57AQI
59AQI
62AQI
60AQI
61AQI
63AQI
66AQI
72AQI
72AQI
68AQI
65AQI
63AQI
59AQI
58AQI
60AQI
60AQI
66AQI
65AQI
63AQI
66AQI
67AQI
66AQI
62AQI
59AQI
57AQI
56AQI
53AQI
50AQI
48AQI
49AQI
52AQI
55AQI
54AQI
53AQI
55AQI
55AQI
54AQI
53AQI
51AQI
51AQI
49AQI
49AQI
49AQI
48AQI
48AQI
47AQI
43AQI
39AQI
38AQI
39AQI
41AQI
38AQI
39AQI
40AQI
39AQI
40AQI
41AQI
40AQI
39AQI
39AQI
44AQI
42AQI
42AQI
41AQI
41AQI
42AQI
41AQI
38AQI
38AQI
36AQI
37AQI
42AQI
33AQI
38AQI
42AQI
45AQI
52AQI
33AQI
43AQI
39AQI
40AQI
47AQI
29AQI
29AQI
43AQI
39AQI
46AQI
44AQI
39AQI
31AQI
24AQI
28AQI
37AQI
37AQI
37AQI
36AQI
25AQI
30AQI
33AQI
34AQI
36AQI
36AQI
38AQI
38AQI
37AQI
50AQI
52AQI
52AQI
48AQI
40AQI
46AQI
50AQI
53AQI
52AQI
52AQI
44AQI
44AQI
46AQI
51AQI
49AQI
55AQI
55AQI
40AQI
38AQI
44AQI
47AQI
42AQI
40AQI
34AQI
38AQI
34AQI
36AQI
32AQI
28AQI
29AQI
36AQI
40AQI
42AQI
44AQI
46AQI
45AQI
37AQI
33AQI
32AQI
37AQI
42AQI
41AQI
41AQI
38AQI
33AQI
29AQI
29AQI
36AQI
44AQI
40AQI
35AQI
34AQI
41AQI
40AQI
35AQI
38AQI
35AQI
33AQI
34AQI
34AQI
34AQI
36AQI
38AQI
39AQI
34AQI
28AQI
33AQI
35AQI
39AQI
38AQI
39AQI
38AQI
38AQI
40AQI
38AQI
37AQI
36AQI
37AQI
39AQI
40AQI
38AQI
34AQI
31AQI
30AQI
33AQI
33AQI
34AQI
35AQI
37AQI
36AQI
36AQI
42AQI
39AQI
40AQI
39AQI
40AQI
41AQI
42AQI
43AQI
45AQI
43AQI
42AQI
40AQI
35AQI
31AQI
32AQI
68AQI
61AQI
57AQI
41AQI
37AQI
45AQI
37AQI
36AQI
39AQI
No. of days
202547AQI
Highest AQI recorded in
January68AQI
Lowest AQI recorded in
August36AQI
202453AQI
Highest AQI recorded in
January84AQI
Lowest AQI recorded in
August29AQI
202368AQI
Highest AQI recorded in
December90AQI
Lowest AQI recorded in
March43AQI
202274AQI
Highest AQI recorded in
October80AQI
Lowest AQI recorded in
November72AQI
Most & Least Polluted Years Over the Last 4 Years
Aleea Secuilor's annual 2025 AQI (47) shows an average percentage change of -26.1% (improved AQI) compared to previous years: 2022 (74), 2023 (68), 2024 (53).