Forest Authority, Yichun, Heilongjiang, China 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
Forest Authority, Yichun, Heilongjiang, China
AQI Trends: Highest and Lowest
Same Day Analysis (2nd July ):
On this day, AQI across the 3 years varied significantly: 2025 ranks 2nd highest AQI at 52 of Moderate air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 3rd Jul - 4th Jul 2025
Forest Authority, Yichun, Heilongjiang, China
5 AM3rd Jul 2025
9 PM
4 AM4th Jul 2025
AQI
AQI
62AQI
49AQI
In the last 24 hours,
Forest Authority's AQI reached its highest point of 62 at 11 PM during the Night, while the lowest point, undefined, was recorded at 4 AM during the Night between 3rd Jul and 4th Jul 2025.
Day & Night AQI Trend : Jun - Jul 2025
Forest Authority, Yichun, Heilongjiang, China
11°C8/13°C
12°C8/18°C
11°C6/16°C
13°C9/17°C
13°C9/17°C
13°C6/19°C
11°C10/13°C
17°C11/25°C
17°C11/26°C
19°C14/25°C
16°C14/19°C
20°C12/27°C
18°C15/21°C
16°C10/22°C
19°C9/28°C
18°C13/23°C
17°C16/19°C
14°C11/17°C
19°C11/27°C
21°C14/28°C
25°C17/32°C
25°C18/33°C
23°C18/33°C
26°C18/33°C
24°C19/33°C
22°C19/26°C
23°C19/29°C
20°C18/27°C
24°C19/29°C
0°C0/0°C
0°C0/0°C
58AQI
53AQI
59AQI
56AQI
2025 Days Vs Air Quality
Forest Authority, Yichun, Heilongjiang, China
2%
4
71%
130
22%
40
5%
9
Total number of days with different AQI categories in last 184 days in 2025 (181 days remaining)
Under WHO’s Safe Air Quality Limits: 2%
Health Risk Level:
Extreme
In 2025, 2% of 184 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
Forest Authority, Yichun, Heilongjiang, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
124AQI
114AQI
130AQI
161AQI
141AQI
144AQI
120AQI
104AQI
96AQI
120AQI
131AQI
146AQI
151AQI
174AQI
137AQI
116AQI
135AQI
133AQI
156AQI
153AQI
151AQI
143AQI
151AQI
160AQI
172AQI
147AQI
117AQI
115AQI
110AQI
96AQI
109AQI
118AQI
132AQI
146AQI
117AQI
108AQI
100AQI
74AQI
82AQI
86AQI
89AQI
126AQI
127AQI
110AQI
91AQI
93AQI
97AQI
72AQI
85AQI
76AQI
77AQI
76AQI
70AQI
76AQI
78AQI
89AQI
74AQI
105AQI
88AQI
79AQI
73AQI
81AQI
87AQI
92AQI
89AQI
83AQI
81AQI
99AQI
107AQI
102AQI
89AQI
75AQI
62AQI
61AQI
59AQI
63AQI
63AQI
97AQI
108AQI
82AQI
89AQI
95AQI
75AQI
76AQI
73AQI
73AQI
63AQI
61AQI
63AQI
82AQI
92AQI
95AQI
106AQI
99AQI
91AQI
95AQI
87AQI
87AQI
113AQI
121AQI
117AQI
121AQI
87AQI
75AQI
60AQI
67AQI
103AQI
80AQI
81AQI
82AQI
99AQI
67AQI
77AQI
71AQI
72AQI
58AQI
87AQI
87AQI
104AQI
96AQI
94AQI
71AQI
63AQI
55AQI
53AQI
57AQI
62AQI
71AQI
64AQI
61AQI
76AQI
107AQI
88AQI
91AQI
84AQI
72AQI
66AQI
64AQI
59AQI
59AQI
58AQI
56AQI
57AQI
50AQI
52AQI
57AQI
63AQI
73AQI
72AQI
76AQI
74AQI
61AQI
60AQI
60AQI
54AQI
53AQI
51AQI
51AQI
55AQI
54AQI
52AQI
49AQI
52AQI
55AQI
58AQI
63AQI
60AQI
58AQI
62AQI
58AQI
56AQI
48AQI
44AQI
51AQI
58AQI
62AQI
58AQI
59AQI
60AQI
57AQI
60AQI
54AQI
52AQI
134AQI
95AQI
80AQI
89AQI
68AQI
56AQI
53AQI
No. of days
202587AQI
Highest AQI recorded in
January134AQI
Lowest AQI recorded in
July53AQI
202469AQI
Highest AQI recorded in
December96AQI
Lowest AQI recorded in
August39AQI
202365AQI
Highest AQI recorded in
January89AQI
Lowest AQI recorded in
August39AQI
202258AQI
Highest AQI recorded in
February119AQI
Lowest AQI recorded in
July34AQI
202182AQI
Highest AQI recorded in
January99AQI
Lowest AQI recorded in
March69AQI
202056AQI
Highest AQI recorded in
December75AQI
Lowest AQI recorded in
June43AQI
Most & Least Polluted Years Over the Last 6 Years
Forest Authority's annual 2025 AQI (87) shows an average percentage change of 34.1% (worsened AQI) compared to previous years: 2020 (56), 2021 (82), 2022 (58), 2023 (65), 2024 (69).