Boulogne Billancourt, Ile De France, France 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
Boulogne Billancourt, Ile De France, France
AQI Trends: Highest and Lowest
Same Day Analysis (17th August):
On this day, AQI across the 3 years varied significantly: 2026 ranks 2nd highest AQI at 33 of Good air quality, showing improvement over 2025 on the same day.
Day & Night AQI Trend: 17th Aug - 18th Aug 2026
Boulogne Billancourt, Ile De France, France
6 AM17th Aug 2026
9 PM
5 AM18th Aug 2026
38AQI
25AQI
31AQI
21AQI
In the last 24 hours,
Boulogne Billancourt's AQI reached its highest point of 38 at 3 PM during the Day, while the lowest point, 21, was recorded at 10 PM during the Night between 17th Aug and 18th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Boulogne Billancourt, Ile De France, France
20°C13/26°C
21°C14/28°C
22°C16/28°C
21°C15/27°C
23°C17/30°C
25°C19/32°C
20°C17/23°C
22°C16/30°C
26°C18/33°C
30°C22/39°C
26°C20/33°C
25°C20/32°C
23°C18/30°C
26°C18/33°C
29°C24/36°C
26°C23/33°C
24°C19/30°C
21°C17/27°C
21°C15/28°C
25°C18/32°C
28°C22/34°C
27°C21/33°C
26°C19/33°C
29°C22/36°C
31°C24/38°C
33°C25/40°C
29°C23/35°C
25°C20/30°C
15°C1/30°C
23°C19/30°C
46AQI
34AQI
44AQI
39AQI
2026 Days Vs Air Quality
Boulogne Billancourt, Ile De France, France
81%
183
16%
37
3%
6
Total number of days with different AQI categories in last 230 days in 2026 (135 days remaining)
Under WHO’s Safe Air Quality Limits: 81%
Health Risk Level:
Low
In 2026, 81% of 230 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Boulogne Billancourt, Ile De France, France
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
59AQI (US)
28AQI (US)
34AQI (US)
48AQI (US)
58AQI (US)
74AQI (US)
43AQI (US)
27AQI (US)
17AQI (US)
15AQI (US)
36AQI (US)
16AQI (US)
20AQI (US)
32AQI (US)
26AQI (US)
19AQI (US)
39AQI (US)
53AQI (US)
73AQI (US)
54AQI (US)
25AQI (US)
18AQI (US)
14AQI (US)
24AQI (US)
45AQI (US)
43AQI (US)
19AQI (US)
57AQI (US)
62AQI (US)
26AQI (US)
39AQI (US)
30AQI (US)
20AQI (US)
23AQI (US)
32AQI (US)
35AQI (US)
32AQI (US)
25AQI (US)
29AQI (US)
53AQI (US)
17AQI (US)
23AQI (US)
34AQI (US)
38AQI (US)
51AQI (US)
47AQI (US)
12AQI (US)
28AQI (US)
28AQI (US)
18AQI (US)
31AQI (US)
29AQI (US)
32AQI (US)
34AQI (US)
32AQI (US)
36AQI (US)
58AQI (US)
44AQI (US)
15AQI (US)
36AQI (US)
26AQI (US)
58AQI (US)
58AQI (US)
59AQI (US)
79AQI (US)
117AQI (US)
120AQI (US)
73AQI (US)
27AQI (US)
21AQI (US)
18AQI (US)
35AQI (US)
15AQI (US)
15AQI (US)
32AQI (US)
32AQI (US)
32AQI (US)
81AQI (US)
98AQI (US)
124AQI (US)
107AQI (US)
108AQI (US)
101AQI (US)
36AQI (US)
9AQI (US)
36AQI (US)
20AQI (US)
14AQI (US)
21AQI (US)
27AQI (US)
57AQI (US)
52AQI (US)
25AQI (US)
27AQI (US)
29AQI (US)
26AQI (US)
22AQI (US)
23AQI (US)
33AQI (US)
15AQI (US)
23AQI (US)
28AQI (US)
28AQI (US)
26AQI (US)
22AQI (US)
21AQI (US)
34AQI (US)
19AQI (US)
22AQI (US)
25AQI (US)
23AQI (US)
26AQI (US)
31AQI (US)
32AQI (US)
25AQI (US)
23AQI (US)
23AQI (US)
22AQI (US)
26AQI (US)
40AQI (US)
17AQI (US)
26AQI (US)
72AQI (US)
51AQI (US)
34AQI (US)
48AQI (US)
51AQI (US)
32AQI (US)
18AQI (US)
21AQI (US)
14AQI (US)
23AQI (US)
36AQI (US)
36AQI (US)
34AQI (US)
35AQI (US)
34AQI (US)
37AQI (US)
33AQI (US)
39AQI (US)
61AQI (US)
41AQI (US)
41AQI (US)
42AQI (US)
49AQI (US)
32AQI (US)
46AQI (US)
33AQI (US)
20AQI (US)
22AQI (US)
21AQI (US)
16AQI (US)
15AQI (US)
16AQI (US)
20AQI (US)
21AQI (US)
14AQI (US)
12AQI (US)
15AQI (US)
22AQI (US)
16AQI (US)
11AQI (US)
17AQI (US)
40AQI (US)
28AQI (US)
35AQI (US)
50AQI (US)
45AQI (US)
43AQI (US)
54AQI (US)
53AQI (US)
56AQI (US)
48AQI (US)
54AQI (US)
46AQI (US)
37AQI (US)
22AQI (US)
23AQI (US)
21AQI (US)
18AQI (US)
20AQI (US)
18AQI (US)
22AQI (US)
22AQI (US)
25AQI (US)
20AQI (US)
28AQI (US)
32AQI (US)
26AQI (US)
23AQI (US)
26AQI (US)
29AQI (US)
26AQI (US)
32AQI (US)
51AQI (US)
55AQI (US)
32AQI (US)
28AQI (US)
41AQI (US)
36AQI (US)
35AQI (US)
44AQI (US)
42AQI (US)
37AQI (US)
41AQI (US)
45AQI (US)
58AQI (US)
52AQI (US)
32AQI (US)
40AQI (US)
33AQI (US)
44AQI (US)
44AQI (US)
26AQI (US)
33AQI (US)
36AQI (US)
40AQI (US)
52AQI (US)
44AQI (US)
41AQI (US)
43AQI (US)
57AQI (US)
73AQI (US)
55AQI (US)
59AQI (US)
33AQI (US)
37AQI (US)
32AQI (US)
53AQI (US)
27AQI (US)
37AQI (US)
30AQI (US)
33AQI (US)
44AQI (US)
No. of days
202636AQI (US)
Highest AQI (US) recorded in
March53AQI (US)
Lowest AQI (US) recorded in
April27AQI (US)
202542AQI (US)
Highest AQI (US) recorded in
February57AQI (US)
Lowest AQI (US) recorded in
September27AQI (US)
202435AQI (US)
Highest AQI (US) recorded in
December44AQI (US)
Lowest AQI (US) recorded in
February17AQI (US)
202324AQI (US)
Highest AQI (US) recorded in
November29AQI (US)
Lowest AQI (US) recorded in
December24AQI (US)
202164AQI (US)
Highest AQI (US) recorded in
January70AQI (US)
Lowest AQI (US) recorded in
February55AQI (US)
202046AQI (US)
Highest AQI (US) recorded in
November58AQI (US)
Lowest AQI (US) recorded in
August36AQI (US)
Most & Least Polluted Years Over the Last 6 Years
Boulogne Billancourt's annual 2026 AQI (US) (36) shows an average percentage change of -5.3% (improved AQI (US)) compared to previous years: 2020 (46), 2021 (64), 2023 (24), 2024 (35), 2025 (42).