Dongshan District, Hegang, Heilongjiang, China Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
October Air Quality Analysis
Dongshan District, Hegang, Heilongjiang, China
AQI Trends: Highest and Lowest
Same Day Analysis (18th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 1st highest AQI at 58 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 18th Oct - 19th Oct 2025
Dongshan District, Hegang, Heilongjiang, China
7 AM18th Oct 2025
6 PM
6 AM19th Oct 2025
62AQI
48AQI
71AQI
51AQI
In the last 24 hours,
Dongshan District's AQI reached its highest point of 71 at 11 PM during the Night, while the lowest point, 48, was recorded at 3 PM during the Day between 18th Oct and 19th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Dongshan District, Hegang, Heilongjiang, China
14°C8/22°C
13°C9/19°C
14°C7/21°C
16°C10/22°C
16°C10/23°C
15°C13/18°C
15°C12/19°C
16°C11/21°C
19°C14/26°C
15°C8/22°C
13°C6/22°C
17°C10/25°C
14°C6/20°C
11°C4/18°C
15°C10/22°C
16°C10/24°C
9°C4/14°C
7°C2/13°C
8°C2/14°C
6°C3/10°C
6°C1/12°C
6°C1/11°C
6°C1/11°C
4°C0/9°C
2°C-1/7°C
1°C-2/7°C
1°C-3/4°C
2°C-3/8°C
-1°C-4/1°C
-2°C-7/4°C
--°C/°C
58AQI
47AQI
69AQI
55AQI
2025 Days Vs Air Quality
Dongshan District, Hegang, Heilongjiang, China
28%
82
60%
175
12%
34
Total number of days with different AQI categories in last 292 days in 2025 (73 days remaining)
Under WHO’s Safe Air Quality Limits: 28%
Health Risk Level:
Very high
In 2025, 28% of 292 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
Dongshan District, Hegang, Heilongjiang, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
95AQI
113AQI
107AQI
131AQI
116AQI
112AQI
110AQI
90AQI
92AQI
82AQI
101AQI
118AQI
150AQI
137AQI
129AQI
105AQI
132AQI
119AQI
139AQI
113AQI
120AQI
119AQI
110AQI
123AQI
131AQI
130AQI
99AQI
103AQI
85AQI
82AQI
98AQI
108AQI
120AQI
119AQI
91AQI
78AQI
66AQI
65AQI
73AQI
73AQI
68AQI
100AQI
89AQI
88AQI
79AQI
85AQI
63AQI
65AQI
69AQI
65AQI
67AQI
68AQI
56AQI
59AQI
64AQI
88AQI
66AQI
89AQI
82AQI
64AQI
62AQI
58AQI
73AQI
83AQI
82AQI
76AQI
70AQI
84AQI
113AQI
72AQI
85AQI
67AQI
65AQI
57AQI
64AQI
59AQI
62AQI
70AQI
114AQI
62AQI
74AQI
53AQI
63AQI
59AQI
58AQI
64AQI
56AQI
59AQI
57AQI
79AQI
94AQI
94AQI
103AQI
101AQI
89AQI
89AQI
83AQI
79AQI
80AQI
96AQI
79AQI
108AQI
74AQI
75AQI
57AQI
54AQI
96AQI
80AQI
80AQI
61AQI
83AQI
65AQI
71AQI
71AQI
71AQI
54AQI
63AQI
54AQI
61AQI
74AQI
80AQI
66AQI
52AQI
52AQI
49AQI
50AQI
57AQI
61AQI
62AQI
59AQI
70AQI
111AQI
114AQI
106AQI
91AQI
82AQI
70AQI
61AQI
61AQI
65AQI
55AQI
58AQI
58AQI
55AQI
49AQI
54AQI
58AQI
68AQI
73AQI
74AQI
83AQI
68AQI
65AQI
57AQI
50AQI
55AQI
53AQI
54AQI
58AQI
58AQI
58AQI
52AQI
52AQI
59AQI
56AQI
49AQI
54AQI
53AQI
53AQI
55AQI
56AQI
43AQI
37AQI
48AQI
51AQI
59AQI
57AQI
58AQI
60AQI
59AQI
56AQI
54AQI
54AQI
57AQI
52AQI
56AQI
52AQI
51AQI
47AQI
49AQI
47AQI
56AQI
53AQI
49AQI
47AQI
45AQI
42AQI
45AQI
48AQI
45AQI
47AQI
44AQI
49AQI
51AQI
51AQI
52AQI
48AQI
48AQI
43AQI
41AQI
43AQI
42AQI
45AQI
45AQI
41AQI
41AQI
42AQI
38AQI
32AQI
30AQI
33AQI
30AQI
33AQI
39AQI
39AQI
35AQI
43AQI
42AQI
38AQI
39AQI
43AQI
43AQI
41AQI
38AQI
40AQI
42AQI
38AQI
38AQI
40AQI
40AQI
41AQI
47AQI
50AQI
44AQI
45AQI
45AQI
63AQI
51AQI
47AQI
46AQI
42AQI
43AQI
39AQI
39AQI
45AQI
47AQI
50AQI
43AQI
44AQI
40AQI
41AQI
42AQI
40AQI
43AQI
44AQI
55AQI
55AQI
53AQI
50AQI
50AQI
53AQI
34AQI
49AQI
54AQI
56AQI
63AQI
76AQI
58AQI
59AQI
74AQI
65AQI
64AQI
67AQI
80AQI
74AQI
65AQI
62AQI
66AQI
58AQI
63AQI
58AQI
113AQI
79AQI
70AQI
78AQI
68AQI
55AQI
49AQI
40AQI
46AQI
65AQI
No. of days
202566AQI
Highest AQI recorded in
January113AQI
Lowest AQI recorded in
August40AQI
202460AQI
Highest AQI recorded in
November82AQI
Lowest AQI recorded in
August32AQI
202356AQI
Highest AQI recorded in
January76AQI
Lowest AQI recorded in
June33AQI
202251AQI
Highest AQI recorded in
November69AQI
Lowest AQI recorded in
July31AQI
202162AQI
Highest AQI recorded in
January82AQI
Lowest AQI recorded in
September45AQI
202050AQI
Highest AQI recorded in
April85AQI
Lowest AQI recorded in
August33AQI
Most & Least Polluted Years Over the Last 6 Years
Dongshan District's annual 2025 AQI (66) shows an average percentage change of 19.4% (worsened AQI) compared to previous years: 2020 (50), 2021 (62), 2022 (51), 2023 (56), 2024 (60).