Hanoi Hoan Kiem District Police Headquarters, Hanoi, Ha Noi, Vietnam Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
July Air Quality Analysis
Hanoi Hoan Kiem District Police Headquarters, Hanoi, Ha Noi, Vietnam
AQI Trends: Highest and Lowest
Same Day Analysis (12th July):
On this day, AQI across the 4 years varied significantly: 2026 ranks 1st highest AQI at 91 of Moderate air quality on the same day.
Day & Night AQI Trend: 11th Jul - 12th Jul 2026
Hanoi Hoan Kiem District Police Headquarters, Hanoi, Ha Noi, Vietnam
5 AM11th Jul 2026
6 PM
4 AM12th Jul 2026
110AQI
72AQI
128AQI
85AQI
In the last 24 hours,
Hanoi Hoan Kiem District Police Headquarters's AQI reached its highest point of 128 at 1 AM during the Night, while the lowest point, 72, was recorded at 10 AM during the Day between 11th Jul and 12th Jul 2026.
Day & Night AQI Trend : Jun - Jul 2026
Hanoi Hoan Kiem District Police Headquarters, Hanoi, Ha Noi, Vietnam
29°C27/34°C
31°C28/38°C
31°C28/37°C
28°C26/29°C
28°C25/31°C
30°C27/37°C
30°C29/32°C
30°C27/36°C
32°C27/38°C
33°C28/40°C
34°C29/39°C
35°C30/40°C
32°C29/38°C
28°C27/32°C
30°C27/35°C
31°C28/37°C
30°C27/37°C
29°C27/34°C
29°C26/34°C
30°C27/33°C
30°C27/34°C
29°C27/33°C
29°C27/33°C
28°C26/34°C
30°C26/36°C
30°C26/35°C
29°C27/34°C
29°C26/34°C
30°C27/35°C
30°C27/34°C
63AQI
50AQI
65AQI
57AQI
2026 Days Vs Air Quality
Hanoi Hoan Kiem District Police Headquarters, Hanoi, Ha Noi, Vietnam
9%
17
67%
127
16%
30
8%
16
Total number of days with different AQI categories in last 193 days in 2026 (172 days remaining)
Under WHO’s Safe Air Quality Limits: 9%
Health Risk Level:
Extreme
In 2026, 9% of 193 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
Hanoi Hoan Kiem District Police Headquarters, Hanoi, Ha Noi, Vietnam
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
128AQI (US)
68AQI (US)
120AQI (US)
158AQI (US)
111AQI (US)
67AQI (US)
125AQI (US)
145AQI (US)
182AQI (US)
169AQI (US)
173AQI (US)
161AQI (US)
187AQI (US)
173AQI (US)
171AQI (US)
159AQI (US)
138AQI (US)
139AQI (US)
143AQI (US)
111AQI (US)
98AQI (US)
58AQI (US)
68AQI (US)
103AQI (US)
147AQI (US)
156AQI (US)
164AQI (US)
155AQI (US)
139AQI (US)
99AQI (US)
97AQI (US)
87AQI (US)
122AQI (US)
155AQI (US)
160AQI (US)
159AQI (US)
155AQI (US)
80AQI (US)
81AQI (US)
43AQI (US)
96AQI (US)
85AQI (US)
93AQI (US)
80AQI (US)
74AQI (US)
85AQI (US)
68AQI (US)
117AQI (US)
100AQI (US)
97AQI (US)
71AQI (US)
91AQI (US)
51AQI (US)
64AQI (US)
74AQI (US)
81AQI (US)
81AQI (US)
89AQI (US)
69AQI (US)
71AQI (US)
67AQI (US)
49AQI (US)
60AQI (US)
102AQI (US)
135AQI (US)
107AQI (US)
73AQI (US)
64AQI (US)
27AQI (US)
73AQI (US)
122AQI (US)
118AQI (US)
84AQI (US)
78AQI (US)
64AQI (US)
62AQI (US)
67AQI (US)
64AQI (US)
55AQI (US)
73AQI (US)
70AQI (US)
60AQI (US)
70AQI (US)
66AQI (US)
84AQI (US)
68AQI (US)
74AQI (US)
75AQI (US)
95AQI (US)
94AQI (US)
73AQI (US)
96AQI (US)
120AQI (US)
93AQI (US)
106AQI (US)
146AQI (US)
143AQI (US)
107AQI (US)
105AQI (US)
108AQI (US)
135AQI (US)
137AQI (US)
114AQI (US)
99AQI (US)
81AQI (US)
70AQI (US)
97AQI (US)
75AQI (US)
79AQI (US)
67AQI (US)
50AQI (US)
65AQI (US)
88AQI (US)
76AQI (US)
60AQI (US)
53AQI (US)
35AQI (US)
33AQI (US)
64AQI (US)
70AQI (US)
54AQI (US)
37AQI (US)
71AQI (US)
64AQI (US)
54AQI (US)
62AQI (US)
89AQI (US)
88AQI (US)
60AQI (US)
54AQI (US)
63AQI (US)
78AQI (US)
77AQI (US)
74AQI (US)
70AQI (US)
54AQI (US)
63AQI (US)
73AQI (US)
72AQI (US)
56AQI (US)
62AQI (US)
60AQI (US)
51AQI (US)
87AQI (US)
56AQI (US)
77AQI (US)
75AQI (US)
87AQI (US)
105AQI (US)
82AQI (US)
80AQI (US)
98AQI (US)
68AQI (US)
71AQI (US)
53AQI (US)
69AQI (US)
38AQI (US)
59AQI (US)
86AQI (US)
79AQI (US)
65AQI (US)
67AQI (US)
70AQI (US)
89AQI (US)
65AQI (US)
68AQI (US)
58AQI (US)
43AQI (US)
52AQI (US)
47AQI (US)
53AQI (US)
50AQI (US)
52AQI (US)
36AQI (US)
86AQI (US)
73AQI (US)
66AQI (US)
42AQI (US)
58AQI (US)
70AQI (US)
70AQI (US)
37AQI (US)
50AQI (US)
43AQI (US)
77AQI (US)
52AQI (US)
57AQI (US)
36AQI (US)
88AQI (US)
91AQI (US)
133AQI (US)
93AQI (US)
76AQI (US)
90AQI (US)
67AQI (US)
66AQI (US)
61AQI (US)
No. of days
202686AQI (US)
Highest AQI (US) recorded in
January133AQI (US)
Lowest AQI (US) recorded in
July61AQI (US)
202585AQI (US)
Highest AQI (US) recorded in
December145AQI (US)
Lowest AQI (US) recorded in
August47AQI (US)
202468AQI (US)
Highest AQI (US) recorded in
December96AQI (US)
Lowest AQI (US) recorded in
August35AQI (US)
202376AQI (US)
Highest AQI (US) recorded in
January112AQI (US)
Lowest AQI (US) recorded in
July23AQI (US)
202237AQI (US)
Highest AQI (US) recorded in
January98AQI (US)
Lowest AQI (US) recorded in
February0AQI (US)
202167AQI (US)
Highest AQI (US) recorded in
January126AQI (US)
Lowest AQI (US) recorded in
July36AQI (US)
202058AQI (US)
Highest AQI (US) recorded in
December91AQI (US)
Lowest AQI (US) recorded in
July46AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Hanoi Hoan Kiem District Police Headquarters's annual 2026 AQI (US) (86) shows an average percentage change of 41.6% (worsened AQI (US)) compared to previous years: 2020 (58), 2021 (67), 2022 (37), 2023 (76), 2024 (68), 2025 (85).