Gangli Reservoir, Zhengzhou, Henan, 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
Gangli Reservoir, Zhengzhou, Henan, China
AQI Trends: Highest and Lowest
Same Day Analysis (1st August ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 2nd highest AQI at 63 of Moderate air quality, showing improvement over 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 2nd Aug - 3rd Aug 2025
Gangli Reservoir, Zhengzhou, Henan, China
5 AM2nd Aug 2025
7 PM
4 AM3rd Aug 2025
AQI
AQI
72AQI
60AQI
In the last 24 hours,
Gangli Reservoir's AQI reached its highest point of 72 at 8 AM during the Night, while the lowest point, 60, was recorded at 2 AM during the Night between 2nd Aug and 3rd Aug 2025.
Day & Night AQI Trend : Jul - Aug 2025
Gangli Reservoir, Zhengzhou, Henan, China
34°C29/40°C
34°C29/39°C
35°C29/41°C
33°C28/40°C
30°C26/36°C
30°C26/34°C
32°C27/36°C
33°C27/38°C
33°C28/38°C
35°C29/40°C
35°C30/40°C
36°C30/42°C
35°C30/40°C
34°C28/40°C
34°C29/40°C
33°C28/38°C
33°C29/39°C
30°C25/37°C
29°C25/34°C
30°C25/35°C
31°C26/37°C
33°C28/40°C
32°C27/38°C
33°C28/38°C
34°C28/40°C
33°C28/41°C
33°C28/40°C
33°C27/39°C
33°C27/39°C
--°C/°C
--°C/°C
64AQI
64AQI
64AQI
64AQI
2025 Days Vs Air Quality
Gangli Reservoir, Zhengzhou, Henan, China
0.4%
1
48%
102
38%
80
14%
29
0.4%
1
Total number of days with different AQI categories in last 214 days in 2025 (151 days remaining)
Under WHO’s Safe Air Quality Limits: 0.47%
Health Risk Level:
Extreme
In 2025, 0.47% of 214 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
Gangli Reservoir, Zhengzhou, Henan, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
161AQI
155AQI
162AQI
160AQI
146AQI
102AQI
105AQI
77AQI
83AQI
111AQI
86AQI
82AQI
128AQI
123AQI
84AQI
93AQI
128AQI
131AQI
133AQI
169AQI
188AQI
167AQI
148AQI
170AQI
167AQI
101AQI
84AQI
86AQI
191AQI
169AQI
170AQI
166AQI
186AQI
116AQI
104AQI
82AQI
89AQI
75AQI
74AQI
101AQI
130AQI
150AQI
104AQI
103AQI
109AQI
107AQI
89AQI
112AQI
133AQI
101AQI
136AQI
142AQI
151AQI
132AQI
156AQI
130AQI
154AQI
156AQI
167AQI
137AQI
93AQI
81AQI
99AQI
137AQI
130AQI
145AQI
144AQI
149AQI
153AQI
160AQI
144AQI
171AQI
106AQI
145AQI
79AQI
85AQI
75AQI
88AQI
64AQI
67AQI
75AQI
96AQI
425AQI
132AQI
165AQI
133AQI
143AQI
94AQI
102AQI
105AQI
104AQI
78AQI
99AQI
119AQI
88AQI
114AQI
130AQI
139AQI
134AQI
142AQI
139AQI
194AQI
122AQI
106AQI
99AQI
158AQI
139AQI
146AQI
137AQI
126AQI
116AQI
105AQI
136AQI
95AQI
126AQI
110AQI
119AQI
87AQI
87AQI
118AQI
99AQI
134AQI
90AQI
99AQI
152AQI
151AQI
161AQI
148AQI
124AQI
100AQI
95AQI
97AQI
115AQI
113AQI
91AQI
112AQI
174AQI
116AQI
142AQI
122AQI
138AQI
122AQI
142AQI
107AQI
107AQI
95AQI
114AQI
109AQI
111AQI
98AQI
93AQI
88AQI
95AQI
75AQI
90AQI
77AQI
85AQI
113AQI
100AQI
97AQI
89AQI
93AQI
82AQI
87AQI
77AQI
73AQI
83AQI
80AQI
69AQI
68AQI
64AQI
65AQI
56AQI
61AQI
66AQI
79AQI
62AQI
65AQI
60AQI
55AQI
57AQI
53AQI
53AQI
51AQI
56AQI
46AQI
58AQI
65AQI
60AQI
64AQI
74AQI
78AQI
78AQI
78AQI
78AQI
79AQI
75AQI
60AQI
60AQI
66AQI
66AQI
63AQI
56AQI
53AQI
59AQI
61AQI
59AQI
58AQI
62AQI
61AQI
60AQI
61AQI
63AQI
131AQI
123AQI
127AQI
120AQI
118AQI
77AQI
63AQI
63AQI
No. of days
2025108AQI
Highest AQI recorded in
January131AQI
Lowest AQI recorded in
July63AQI
2024104AQI
Highest AQI recorded in
January147AQI
Lowest AQI recorded in
July57AQI
2023104AQI
Highest AQI recorded in
January158AQI
Lowest AQI recorded in
July64AQI
2022116AQI
Highest AQI recorded in
January184AQI
Lowest AQI recorded in
July73AQI
2021112AQI
Highest AQI recorded in
March176AQI
Lowest AQI recorded in
July64AQI
2020108AQI
Highest AQI recorded in
December151AQI
Lowest AQI recorded in
August76AQI
Most & Least Polluted Years Over the Last 6 Years
Gangli Reservoir's annual 2025 AQI (108) shows an average percentage change of -0.3% (improved AQI) compared to previous years: 2020 (108), 2021 (112), 2022 (116), 2023 (104), 2024 (104).