Chengguan, Henan, 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
Chengguan, Henan, China
AQI Trends: Highest and Lowest
Same Day Analysis (18th July):
On this day, AQI across the 3 years varied significantly: 2026 ranks 1st highest AQI at 79 of Moderate air quality on the same day.
Day & Night AQI Trend: 17th Jul - 18th Jul 2026
Chengguan, Henan, China
5 AM17th Jul 2026
7 PM
4 AM18th Jul 2026
58AQI
19AQI
67AQI
35AQI
In the last 24 hours,
Chengguan's AQI reached its highest point of 67 at 3 AM during the Night, while the lowest point, 19, was recorded at 2 PM during the Day between 17th Jul and 18th Jul 2026.
Day & Night AQI Trend : Jun - Jul 2026
Chengguan, Henan, China
21°C20/22°C
27°C19/35°C
22°C18/25°C
23°C19/28°C
26°C20/32°C
28°C22/34°C
29°C23/34°C
28°C24/33°C
30°C24/38°C
31°C24/39°C
31°C25/38°C
30°C24/37°C
29°C22/36°C
31°C27/39°C
31°C25/37°C
32°C25/40°C
32°C23/41°C
27°C23/35°C
27°C23/35°C
31°C25/40°C
33°C27/39°C
32°C28/36°C
34°C28/40°C
32°C28/38°C
32°C29/36°C
33°C28/39°C
29°C25/34°C
31°C27/37°C
25°C22/28°C
27°C22/34°C
62AQI
56AQI
60AQI
54AQI
2026 Days Vs Air Quality
Chengguan, Henan, China
8%
15
49%
97
27%
53
17%
34
Total number of days with different AQI categories in last 199 days in 2026 (166 days remaining)
Under WHO’s Safe Air Quality Limits: 8%
Health Risk Level:
Extreme
In 2026, 8% of 199 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
Chengguan, Henan, China
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
116AQI (US)
168AQI (US)
173AQI (US)
174AQI (US)
190AQI (US)
90AQI (US)
78AQI (US)
114AQI (US)
86AQI (US)
74AQI (US)
70AQI (US)
98AQI (US)
118AQI (US)
162AQI (US)
130AQI (US)
154AQI (US)
137AQI (US)
130AQI (US)
104AQI (US)
111AQI (US)
146AQI (US)
165AQI (US)
162AQI (US)
172AQI (US)
174AQI (US)
170AQI (US)
192AQI (US)
183AQI (US)
182AQI (US)
134AQI (US)
178AQI (US)
164AQI (US)
154AQI (US)
169AQI (US)
165AQI (US)
146AQI (US)
84AQI (US)
100AQI (US)
154AQI (US)
134AQI (US)
120AQI (US)
119AQI (US)
150AQI (US)
163AQI (US)
156AQI (US)
80AQI (US)
56AQI (US)
143AQI (US)
122AQI (US)
102AQI (US)
75AQI (US)
100AQI (US)
88AQI (US)
106AQI (US)
100AQI (US)
67AQI (US)
80AQI (US)
144AQI (US)
133AQI (US)
101AQI (US)
134AQI (US)
166AQI (US)
164AQI (US)
155AQI (US)
135AQI (US)
116AQI (US)
158AQI (US)
158AQI (US)
168AQI (US)
161AQI (US)
168AQI (US)
168AQI (US)
143AQI (US)
93AQI (US)
116AQI (US)
151AQI (US)
101AQI (US)
109AQI (US)
156AQI (US)
144AQI (US)
111AQI (US)
108AQI (US)
148AQI (US)
139AQI (US)
136AQI (US)
156AQI (US)
130AQI (US)
74AQI (US)
118AQI (US)
125AQI (US)
119AQI (US)
130AQI (US)
75AQI (US)
54AQI (US)
84AQI (US)
88AQI (US)
86AQI (US)
91AQI (US)
82AQI (US)
118AQI (US)
106AQI (US)
108AQI (US)
65AQI (US)
80AQI (US)
70AQI (US)
127AQI (US)
124AQI (US)
110AQI (US)
88AQI (US)
87AQI (US)
51AQI (US)
65AQI (US)
86AQI (US)
70AQI (US)
66AQI (US)
98AQI (US)
114AQI (US)
78AQI (US)
52AQI (US)
76AQI (US)
86AQI (US)
54AQI (US)
40AQI (US)
52AQI (US)
79AQI (US)
84AQI (US)
56AQI (US)
59AQI (US)
67AQI (US)
83AQI (US)
96AQI (US)
122AQI (US)
131AQI (US)
113AQI (US)
88AQI (US)
76AQI (US)
64AQI (US)
57AQI (US)
54AQI (US)
64AQI (US)
69AQI (US)
82AQI (US)
72AQI (US)
72AQI (US)
66AQI (US)
46AQI (US)
60AQI (US)
70AQI (US)
51AQI (US)
72AQI (US)
67AQI (US)
94AQI (US)
124AQI (US)
118AQI (US)
56AQI (US)
103AQI (US)
77AQI (US)
40AQI (US)
52AQI (US)
55AQI (US)
51AQI (US)
61AQI (US)
88AQI (US)
56AQI (US)
66AQI (US)
73AQI (US)
60AQI (US)
62AQI (US)
78AQI (US)
42AQI (US)
61AQI (US)
52AQI (US)
44AQI (US)
68AQI (US)
48AQI (US)
66AQI (US)
46AQI (US)
90AQI (US)
64AQI (US)
84AQI (US)
85AQI (US)
58AQI (US)
86AQI (US)
41AQI (US)
46AQI (US)
54AQI (US)
36AQI (US)
44AQI (US)
60AQI (US)
60AQI (US)
42AQI (US)
46AQI (US)
58AQI (US)
61AQI (US)
66AQI (US)
50AQI (US)
70AQI (US)
42AQI (US)
79AQI (US)
140AQI (US)
121AQI (US)
136AQI (US)
88AQI (US)
73AQI (US)
69AQI (US)
56AQI (US)
No. of days
2026100AQI (US)
Highest AQI (US) recorded in
January140AQI (US)
Lowest AQI (US) recorded in
July56AQI (US)
2025105AQI (US)
Highest AQI (US) recorded in
December154AQI (US)
Lowest AQI (US) recorded in
August63AQI (US)
2024104AQI (US)
Highest AQI (US) recorded in
January165AQI (US)
Lowest AQI (US) recorded in
July65AQI (US)
2023147AQI (US)
Highest AQI (US) recorded in
December149AQI (US)
Lowest AQI (US) recorded in
November129AQI (US)
2021155AQI (US)
Highest AQI (US) recorded in
January163AQI (US)
Lowest AQI (US) recorded in
March140AQI (US)
2020133AQI (US)
Highest AQI (US) recorded in
December167AQI (US)
Lowest AQI (US) recorded in
August98AQI (US)
Most & Least Polluted Years Over the Last 6 Years
Chengguan's annual 2026 AQI (US) (100) shows an average percentage change of -20.1% (improved AQI (US)) compared to previous years: 2020 (133), 2021 (155), 2023 (147), 2024 (104), 2025 (105).