Hegang, Hegang, Heilongjiang, China 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
Hegang, Hegang, Heilongjiang, China
AQI Trends: Highest and Lowest
Same Day Analysis (30th August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 44 of Good air quality, showing improvement over 2024 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 30th Aug - 31st Aug 2025
Hegang, Hegang, Heilongjiang, China
6 AM30th Aug 2025
8 PM
5 AM31st Aug 2025
53AQI
39AQI
59AQI
46AQI
In the last 24 hours,
Hegang's AQI reached its highest point of 59 at 10 PM during the Night, while the lowest point, 39, was recorded at 1 PM during the Day between 30th Aug and 31st Aug 2025.
Day & Night AQI Trend : Aug 2025
Hegang, Hegang, Heilongjiang, China
25°C17/32°C
24°C17/31°C
22°C18/29°C
24°C17/31°C
24°C17/32°C
21°C15/27°C
19°C15/25°C
22°C15/29°C
22°C14/29°C
18°C15/21°C
19°C16/25°C
21°C17/27°C
20°C17/25°C
23°C18/29°C
24°C17/32°C
21°C15/27°C
19°C13/24°C
18°C13/24°C
19°C12/27°C
19°C15/26°C
19°C13/25°C
15°C13/14°C
19°C15/25°C
20°C16/26°C
19°C15/23°C
19°C16/23°C
21°C15/28°C
20°C17/25°C
17°C13/20°C
21°C15/28°C
--°C/°C
45AQI
33AQI
48AQI
40AQI
2025 Days Vs Air Quality
Hegang, Hegang, Heilongjiang, China
22%
53
62%
149
16%
39
0.4%
1
Total number of days with different AQI categories in last 243 days in 2025 (122 days remaining)
Under WHO’s Safe Air Quality Limits: 22%
Health Risk Level:
Very high
In 2025, 22% of 243 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
Hegang, Hegang, Heilongjiang, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
117AQI
143AQI
132AQI
146AQI
124AQI
120AQI
121AQI
94AQI
94AQI
98AQI
128AQI
140AQI
163AQI
148AQI
131AQI
111AQI
141AQI
130AQI
143AQI
133AQI
120AQI
119AQI
102AQI
141AQI
142AQI
142AQI
105AQI
110AQI
89AQI
84AQI
100AQI
118AQI
128AQI
121AQI
92AQI
75AQI
65AQI
68AQI
78AQI
80AQI
69AQI
111AQI
92AQI
93AQI
88AQI
93AQI
72AQI
65AQI
72AQI
67AQI
67AQI
65AQI
55AQI
60AQI
70AQI
97AQI
67AQI
98AQI
90AQI
64AQI
64AQI
69AQI
86AQI
96AQI
84AQI
82AQI
79AQI
95AQI
122AQI
76AQI
89AQI
69AQI
67AQI
57AQI
69AQI
62AQI
64AQI
78AQI
122AQI
67AQI
78AQI
56AQI
65AQI
61AQI
60AQI
60AQI
55AQI
60AQI
59AQI
83AQI
101AQI
99AQI
112AQI
108AQI
97AQI
97AQI
98AQI
92AQI
89AQI
106AQI
90AQI
116AQI
80AQI
75AQI
60AQI
61AQI
101AQI
83AQI
83AQI
68AQI
86AQI
70AQI
75AQI
78AQI
75AQI
60AQI
65AQI
59AQI
68AQI
76AQI
86AQI
70AQI
58AQI
55AQI
52AQI
53AQI
63AQI
68AQI
66AQI
66AQI
76AQI
114AQI
115AQI
101AQI
91AQI
73AQI
70AQI
49AQI
57AQI
57AQI
47AQI
53AQI
53AQI
50AQI
45AQI
53AQI
57AQI
64AQI
73AQI
74AQI
81AQI
64AQI
63AQI
56AQI
47AQI
53AQI
50AQI
51AQI
54AQI
57AQI
49AQI
44AQI
51AQI
58AQI
58AQI
50AQI
58AQI
55AQI
55AQI
57AQI
56AQI
46AQI
39AQI
47AQI
50AQI
59AQI
59AQI
59AQI
62AQI
63AQI
58AQI
56AQI
55AQI
56AQI
55AQI
59AQI
53AQI
52AQI
50AQI
54AQI
49AQI
54AQI
55AQI
49AQI
51AQI
51AQI
49AQI
54AQI
54AQI
51AQI
50AQI
49AQI
51AQI
54AQI
51AQI
54AQI
51AQI
54AQI
47AQI
46AQI
46AQI
45AQI
47AQI
46AQI
40AQI
42AQI
42AQI
37AQI
38AQI
37AQI
37AQI
36AQI
35AQI
40AQI
40AQI
35AQI
44AQI
43AQI
39AQI
39AQI
43AQI
43AQI
41AQI
39AQI
40AQI
42AQI
40AQI
39AQI
41AQI
42AQI
42AQI
44AQI
123AQI
83AQI
74AQI
84AQI
67AQI
54AQI
52AQI
40AQI
No. of days
202572AQI
Highest AQI recorded in
January123AQI
Lowest AQI recorded in
August40AQI
202478AQI
Highest AQI recorded in
January99AQI
Lowest AQI recorded in
June42AQI
202371AQI
Highest AQI recorded in
January99AQI
Lowest AQI recorded in
August39AQI
202268AQI
Highest AQI recorded in
November91AQI
Lowest AQI recorded in
June41AQI
202176AQI
Highest AQI recorded in
January99AQI
Lowest AQI recorded in
August56AQI
202067AQI
Highest AQI recorded in
April95AQI
Lowest AQI recorded in
August46AQI
Most & Least Polluted Years Over the Last 6 Years
Hegang's annual 2025 AQI (72) shows an average percentage change of 0.7% (worsened AQI) compared to previous years: 2020 (67), 2021 (76), 2022 (68), 2023 (71), 2024 (78).