Gangsa Stream, Baiyin, Gansu, 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
Gangsa Stream, Baiyin, Gansu, China
AQI Trends: Highest and Lowest
Same Day Analysis (16th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 70 of Moderate air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 16th Sep - 17th Sep 2025
Gangsa Stream, Baiyin, Gansu, China
6 AM16th Sep 2025
7 PM
5 AM17th Sep 2025
72AQI
60AQI
71AQI
66AQI
In the last 24 hours,
Gangsa Stream's AQI reached its highest point of 72 at 2 PM during the Day, while the lowest point, 60, was recorded at 9 AM during the Day between 16th Sep and 17th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Gangsa Stream, Baiyin, Gansu, China
25°C20/31°C
25°C21/30°C
20°C15/22°C
17°C13/21°C
15°C13/17°C
18°C13/25°C
22°C17/28°C
23°C19/28°C
19°C16/21°C
14°C14/14°C
15°C13/17°C
17°C11/23°C
21°C15/26°C
22°C17/28°C
23°C18/29°C
18°C14/20°C
21°C16/28°C
19°C13/27°C
17°C12/21°C
20°C15/26°C
21°C17/26°C
22°C17/27°C
23°C18/28°C
23°C18/28°C
23°C19/28°C
23°C18/29°C
21°C19/24°C
22°C17/27°C
21°C18/23°C
18°C13/22°C
--°C/°C
66AQI
56AQI
64AQI
59AQI
2025 Days Vs Air Quality
Gangsa Stream, Baiyin, Gansu, China
2%
6
74%
191
22%
57
1%
3
0.7%
2
Total number of days with different AQI categories in last 260 days in 2025 (105 days remaining)
Under WHO’s Safe Air Quality Limits: 2%
Health Risk Level:
Extreme
In 2025, 2% of 260 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
Gangsa Stream, Baiyin, Gansu, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
90AQI
98AQI
97AQI
106AQI
128AQI
112AQI
96AQI
96AQI
105AQI
87AQI
89AQI
95AQI
110AQI
77AQI
92AQI
111AQI
116AQI
99AQI
129AQI
108AQI
126AQI
126AQI
150AQI
131AQI
101AQI
100AQI
98AQI
124AQI
148AQI
143AQI
116AQI
103AQI
81AQI
77AQI
72AQI
66AQI
68AQI
68AQI
80AQI
86AQI
94AQI
87AQI
97AQI
108AQI
64AQI
78AQI
79AQI
73AQI
73AQI
74AQI
79AQI
84AQI
72AQI
68AQI
72AQI
70AQI
71AQI
71AQI
71AQI
80AQI
58AQI
79AQI
79AQI
63AQI
75AQI
78AQI
83AQI
80AQI
77AQI
123AQI
83AQI
89AQI
81AQI
70AQI
81AQI
65AQI
73AQI
73AQI
89AQI
90AQI
93AQI
84AQI
187AQI
204AQI
170AQI
103AQI
115AQI
96AQI
110AQI
102AQI
137AQI
135AQI
145AQI
138AQI
113AQI
118AQI
111AQI
126AQI
111AQI
101AQI
123AQI
284AQI
105AQI
101AQI
102AQI
146AQI
124AQI
140AQI
146AQI
145AQI
136AQI
127AQI
95AQI
91AQI
89AQI
94AQI
82AQI
79AQI
84AQI
125AQI
95AQI
126AQI
121AQI
110AQI
158AQI
136AQI
134AQI
103AQI
99AQI
84AQI
78AQI
83AQI
98AQI
82AQI
79AQI
91AQI
141AQI
96AQI
102AQI
92AQI
107AQI
100AQI
79AQI
83AQI
72AQI
79AQI
75AQI
73AQI
76AQI
101AQI
99AQI
82AQI
77AQI
73AQI
79AQI
69AQI
74AQI
79AQI
79AQI
77AQI
71AQI
78AQI
85AQI
99AQI
83AQI
91AQI
80AQI
85AQI
80AQI
76AQI
70AQI
68AQI
56AQI
62AQI
61AQI
64AQI
63AQI
59AQI
63AQI
68AQI
63AQI
62AQI
62AQI
62AQI
55AQI
56AQI
52AQI
56AQI
62AQI
59AQI
58AQI
57AQI
58AQI
63AQI
67AQI
69AQI
69AQI
67AQI
69AQI
67AQI
61AQI
60AQI
58AQI
78AQI
60AQI
55AQI
61AQI
62AQI
63AQI
64AQI
61AQI
69AQI
65AQI
63AQI
63AQI
57AQI
60AQI
61AQI
60AQI
50AQI
56AQI
62AQI
59AQI
57AQI
58AQI
56AQI
56AQI
57AQI
58AQI
53AQI
54AQI
59AQI
53AQI
49AQI
51AQI
55AQI
55AQI
53AQI
48AQI
47AQI
48AQI
50AQI
53AQI
53AQI
70AQI
65AQI
81AQI
60AQI
73AQI
67AQI
70AQI
65AQI
68AQI
64AQI
59AQI
71AQI
69AQI
85AQI
70AQI
110AQI
78AQI
95AQI
122AQI
98AQI
74AQI
62AQI
56AQI
68AQI
No. of days
202586AQI
Highest AQI recorded in
April122AQI
Lowest AQI recorded in
August56AQI
202487AQI
Highest AQI recorded in
February133AQI
Lowest AQI recorded in
September56AQI
202392AQI
Highest AQI recorded in
April122AQI
Lowest AQI recorded in
September62AQI
202289AQI
Highest AQI recorded in
December127AQI
Lowest AQI recorded in
August58AQI
202190AQI
Highest AQI recorded in
March254AQI
Lowest AQI recorded in
September48AQI
202077AQI
Highest AQI recorded in
November107AQI
Lowest AQI recorded in
August54AQI
Most & Least Polluted Years Over the Last 6 Years
Gangsa Stream's annual 2025 AQI (86) shows an average percentage change of -1.1% (improved AQI) compared to previous years: 2020 (77), 2021 (90), 2022 (89), 2023 (92), 2024 (87).