Honggang District, Daqing, Heilongjiang, 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
Honggang District, Daqing, Heilongjiang, China
AQI Trends: Highest and Lowest
Same Day Analysis (21st September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 51 of Moderate air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 21st Sep - 22nd Sep 2025
Honggang District, Daqing, Heilongjiang, China
7 AM21st Sep 2025
8 PM
6 AM22nd Sep 2025
58AQI
21AQI
70AQI
54AQI
In the last 24 hours,
Honggang District's AQI reached its highest point of 70 at 10 PM during the Night, while the lowest point, 21, was recorded at 3 PM during the Day between 21st Sep and 22nd Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Honggang District, Daqing, Heilongjiang, China
23°C17/28°C
23°C18/27°C
23°C18/29°C
22°C17/27°C
22°C17/26°C
20°C18/22°C
21°C17/26°C
23°C17/30°C
21°C18/29°C
22°C18/27°C
22°C17/27°C
23°C18/29°C
24°C17/31°C
24°C19/28°C
20°C15/25°C
18°C13/22°C
15°C11/20°C
16°C10/21°C
17°C12/23°C
19°C13/27°C
20°C17/23°C
20°C16/26°C
19°C14/27°C
17°C13/23°C
13°C10/16°C
14°C8/20°C
16°C10/22°C
18°C11/25°C
16°C13/20°C
16°C11/22°C
--°C/°C
55AQI
40AQI
57AQI
51AQI
2025 Days Vs Air Quality
Honggang District, Daqing, Heilongjiang, China
21%
56
56%
149
16%
42
5%
14
1%
3
Total number of days with different AQI categories in last 265 days in 2025 (100 days remaining)
Under WHO’s Safe Air Quality Limits: 21%
Health Risk Level:
Very high
In 2025, 21% of 265 days were within WHO’s safe air quality limits. The risk of health issues is Very high, including respiratory issues, heart disease, and stress, particularly affecting vulnerable groups.
Annual Air Quality Insights
Honggang District, Daqing, Heilongjiang, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
156AQI
121AQI
108AQI
160AQI
150AQI
155AQI
116AQI
108AQI
86AQI
100AQI
139AQI
172AQI
191AQI
159AQI
109AQI
107AQI
125AQI
158AQI
170AQI
194AQI
163AQI
144AQI
176AQI
213AQI
228AQI
205AQI
130AQI
124AQI
104AQI
100AQI
97AQI
131AQI
147AQI
112AQI
94AQI
113AQI
97AQI
82AQI
73AQI
73AQI
110AQI
149AQI
122AQI
104AQI
98AQI
112AQI
80AQI
78AQI
70AQI
70AQI
77AQI
76AQI
88AQI
70AQI
77AQI
69AQI
69AQI
82AQI
70AQI
66AQI
70AQI
82AQI
97AQI
107AQI
107AQI
99AQI
95AQI
142AQI
150AQI
153AQI
90AQI
93AQI
68AQI
67AQI
72AQI
69AQI
71AQI
112AQI
71AQI
88AQI
70AQI
185AQI
90AQI
118AQI
116AQI
80AQI
75AQI
60AQI
63AQI
70AQI
105AQI
95AQI
108AQI
136AQI
96AQI
111AQI
106AQI
101AQI
113AQI
143AQI
153AQI
108AQI
97AQI
76AQI
65AQI
61AQI
96AQI
60AQI
74AQI
73AQI
74AQI
51AQI
66AQI
60AQI
53AQI
62AQI
78AQI
64AQI
102AQI
53AQI
72AQI
56AQI
61AQI
49AQI
54AQI
58AQI
66AQI
72AQI
67AQI
65AQI
79AQI
103AQI
103AQI
90AQI
114AQI
85AQI
78AQI
76AQI
68AQI
83AQI
62AQI
62AQI
58AQI
64AQI
65AQI
73AQI
79AQI
94AQI
87AQI
98AQI
93AQI
70AQI
72AQI
64AQI
69AQI
57AQI
53AQI
50AQI
62AQI
48AQI
51AQI
52AQI
64AQI
67AQI
57AQI
67AQI
60AQI
59AQI
61AQI
56AQI
56AQI
50AQI
45AQI
53AQI
62AQI
63AQI
64AQI
69AQI
59AQI
64AQI
72AQI
61AQI
58AQI
58AQI
54AQI
54AQI
56AQI
56AQI
54AQI
56AQI
58AQI
64AQI
56AQI
55AQI
50AQI
50AQI
48AQI
50AQI
46AQI
47AQI
48AQI
48AQI
51AQI
55AQI
58AQI
49AQI
56AQI
54AQI
47AQI
51AQI
49AQI
43AQI
46AQI
50AQI
38AQI
40AQI
41AQI
36AQI
36AQI
39AQI
36AQI
38AQI
34AQI
45AQI
46AQI
37AQI
52AQI
43AQI
37AQI
37AQI
41AQI
38AQI
41AQI
34AQI
44AQI
39AQI
39AQI
35AQI
40AQI
41AQI
39AQI
46AQI
57AQI
54AQI
49AQI
63AQI
72AQI
63AQI
48AQI
47AQI
44AQI
42AQI
47AQI
50AQI
57AQI
59AQI
55AQI
48AQI
53AQI
44AQI
49AQI
51AQI
52AQI
51AQI
144AQI
93AQI
93AQI
88AQI
75AQI
60AQI
53AQI
41AQI
52AQI
No. of days
202579AQI
Highest AQI recorded in
January144AQI
Lowest AQI recorded in
August41AQI
202481AQI
Highest AQI recorded in
November132AQI
Lowest AQI recorded in
September53AQI
202373AQI
Highest AQI recorded in
January106AQI
Lowest AQI recorded in
August42AQI
202268AQI
Highest AQI recorded in
January128AQI
Lowest AQI recorded in
July35AQI
202171AQI
Highest AQI recorded in
January106AQI
Lowest AQI recorded in
September45AQI
202060AQI
Highest AQI recorded in
April90AQI
Lowest AQI recorded in
August43AQI
Most & Least Polluted Years Over the Last 6 Years
Honggang District's annual 2025 AQI (79) shows an average percentage change of 12.5% (worsened AQI) compared to previous years: 2020 (60), 2021 (71), 2022 (68), 2023 (73), 2024 (81).