Beijing US Embassy, Beijing, Beijing, China 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
Beijing US Embassy, Beijing, Beijing, China
AQI Trends: Highest and Lowest
Same Day Analysis (16th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks the most lowest AQI at 61 of Moderate 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: 16th Sep - 17th Sep 2025
Beijing US Embassy, Beijing, Beijing, China
5 AM16th Sep 2025
6 PM
4 AM17th Sep 2025
AQI
AQI
71AQI
16AQI
In the last 24 hours,
Beijing US Embassy's AQI reached its highest point of 71 at 1 AM during the Night, while the lowest point, 16, was recorded at 3 PM during the Night between 16th Sep and 17th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Beijing US Embassy, Beijing, Beijing, China
27°C23/31°C
25°C23/27°C
26°C22/30°C
26°C24/30°C
28°C23/35°C
25°C22/28°C
23°C21/26°C
26°C21/32°C
25°C21/31°C
21°C20/21°C
22°C20/25°C
24°C23/28°C
25°C22/28°C
26°C21/31°C
26°C21/32°C
26°C22/30°C
27°C23/31°C
26°C22/32°C
22°C20/25°C
24°C19/31°C
25°C19/31°C
25°C19/31°C
23°C18/31°C
23°C19/28°C
25°C21/30°C
24°C21/28°C
24°C20/29°C
24°C19/31°C
20°C18/20°C
--°C/°C
--°C/°C
68AQI
61AQI
66AQI
66AQI
2025 Days Vs Air Quality
Beijing US Embassy, Beijing, Beijing, China
6%
15
79%
205
13%
33
2%
5
0.3%
1
Total number of days with different AQI categories in last 259 days in 2025 (106 days remaining)
Under WHO’s Safe Air Quality Limits: 6%
Health Risk Level:
Extreme
In 2025, 6% of 259 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
Beijing US Embassy, Beijing, Beijing, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
74AQI
71AQI
77AQI
92AQI
74AQI
59AQI
48AQI
40AQI
44AQI
47AQI
62AQI
59AQI
81AQI
46AQI
67AQI
60AQI
100AQI
119AQI
66AQI
113AQI
63AQI
106AQI
125AQI
150AQI
163AQI
121AQI
68AQI
63AQI
133AQI
83AQI
144AQI
127AQI
88AQI
62AQI
51AQI
45AQI
60AQI
44AQI
39AQI
45AQI
100AQI
136AQI
61AQI
123AQI
91AQI
133AQI
52AQI
67AQI
54AQI
52AQI
43AQI
45AQI
39AQI
41AQI
61AQI
47AQI
87AQI
129AQI
146AQI
210AQI
115AQI
96AQI
90AQI
126AQI
70AQI
133AQI
127AQI
157AQI
156AQI
185AQI
119AQI
155AQI
111AQI
111AQI
79AQI
75AQI
68AQI
65AQI
56AQI
55AQI
60AQI
99AQI
68AQI
72AQI
81AQI
64AQI
66AQI
58AQI
66AQI
82AQI
67AQI
65AQI
79AQI
83AQI
66AQI
93AQI
77AQI
80AQI
84AQI
99AQI
118AQI
87AQI
89AQI
88AQI
87AQI
116AQI
88AQI
76AQI
80AQI
93AQI
122AQI
67AQI
83AQI
57AQI
76AQI
105AQI
64AQI
82AQI
80AQI
71AQI
67AQI
69AQI
57AQI
70AQI
76AQI
64AQI
87AQI
103AQI
68AQI
87AQI
89AQI
107AQI
99AQI
74AQI
76AQI
102AQI
68AQI
85AQI
81AQI
119AQI
102AQI
112AQI
91AQI
82AQI
88AQI
89AQI
85AQI
93AQI
94AQI
98AQI
108AQI
111AQI
64AQI
51AQI
51AQI
66AQI
60AQI
61AQI
65AQI
65AQI
63AQI
70AQI
81AQI
82AQI
79AQI
53AQI
52AQI
65AQI
71AQI
68AQI
59AQI
55AQI
56AQI
62AQI
67AQI
67AQI
69AQI
75AQI
73AQI
79AQI
73AQI
66AQI
67AQI
61AQI
65AQI
60AQI
57AQI
63AQI
62AQI
66AQI
61AQI
69AQI
73AQI
59AQI
63AQI
65AQI
63AQI
56AQI
62AQI
69AQI
56AQI
62AQI
72AQI
66AQI
64AQI
61AQI
65AQI
65AQI
58AQI
50AQI
51AQI
59AQI
63AQI
64AQI
62AQI
63AQI
60AQI
66AQI
59AQI
65AQI
51AQI
58AQI
62AQI
65AQI
62AQI
66AQI
69AQI
59AQI
62AQI
63AQI
60AQI
57AQI
58AQI
57AQI
56AQI
58AQI
56AQI
58AQI
57AQI
55AQI
62AQI
63AQI
60AQI
61AQI
67AQI
71AQI
72AQI
75AQI
68AQI
70AQI
68AQI
77AQI
72AQI
75AQI
78AQI
78AQI
73AQI
67AQI
61AQI
84AQI
74AQI
99AQI
84AQI
87AQI
67AQI
62AQI
61AQI
71AQI
No. of days
202577AQI
Highest AQI recorded in
March99AQI
Lowest AQI recorded in
August61AQI
2024103AQI
Highest AQI recorded in
April129AQI
Lowest AQI recorded in
December66AQI
202396AQI
Highest AQI recorded in
March122AQI
Lowest AQI recorded in
July74AQI
202287AQI
Highest AQI recorded in
January104AQI
Lowest AQI recorded in
August34AQI
202192AQI
Highest AQI recorded in
March145AQI
Lowest AQI recorded in
August77AQI
202086AQI
Highest AQI recorded in
June120AQI
Lowest AQI recorded in
September66AQI
Most & Least Polluted Years Over the Last 6 Years
Beijing US Embassy's annual 2025 AQI (77) shows an average percentage change of -16.5% (improved AQI) compared to previous years: 2020 (86), 2021 (92), 2022 (87), 2023 (96), 2024 (103).