Nanzhao County Siyuan Experimental School, Nanyang, 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
Nanzhao County Siyuan Experimental School, Nanyang, Henan, China
AQI Trends: Highest and Lowest
Same Day Analysis (18th August):
On this day, AQI across the 3 years varied significantly: 2026 ranks 2nd highest AQI at 60 of Moderate air quality, showing improvement over 2024 on the same day.
Day & Night AQI Trend: 17th Aug - 18th Aug 2026
Nanzhao County Siyuan Experimental School, Nanyang, Henan, China
5 AM17th Aug 2026
7 PM
4 AM18th Aug 2026
80AQI
25AQI
72AQI
42AQI
In the last 24 hours,
Nanzhao County Siyuan Experimental School's AQI reached its highest point of 80 at 6 AM during the Day, while the lowest point, 25, was recorded at 6 PM during the Day between 17th Aug and 18th Aug 2026.
Day & Night AQI Trend : Jul - Aug 2026
Nanzhao County Siyuan Experimental School, Nanyang, Henan, China
26°C20/34°C
27°C21/35°C
26°C20/33°C
25°C20/33°C
25°C20/32°C
25°C20/31°C
26°C21/31°C
23°C20/28°C
23°C20/27°C
24°C21/26°C
24°C21/29°C
25°C23/29°C
25°C22/29°C
25°C21/30°C
24°C20/31°C
23°C19/29°C
23°C19/28°C
24°C20/29°C
26°C21/32°C
24°C21/28°C
23°C18/29°C
23°C18/30°C
21°C20/22°C
21°C20/23°C
20°C18/22°C
22°C18/27°C
23°C17/28°C
23°C18/30°C
14°C12/16°C
25°C22/28°C
54AQI
46AQI
52AQI
47AQI
2026 Days Vs Air Quality
Nanzhao County Siyuan Experimental School, Nanyang, Henan, China
24%
55
43%
100
22%
51
10%
24
Total number of days with different AQI categories in last 230 days in 2026 (135 days remaining)
Under WHO’s Safe Air Quality Limits: 24%
Health Risk Level:
Very high
In 2026, 24% of 230 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
Nanzhao County Siyuan Experimental School, Nanyang, Henan, China
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
119AQI (US)
159AQI (US)
173AQI (US)
163AQI (US)
161AQI (US)
94AQI (US)
81AQI (US)
108AQI (US)
103AQI (US)
133AQI (US)
89AQI (US)
121AQI (US)
159AQI (US)
162AQI (US)
143AQI (US)
163AQI (US)
164AQI (US)
132AQI (US)
115AQI (US)
129AQI (US)
143AQI (US)
150AQI (US)
150AQI (US)
163AQI (US)
167AQI (US)
174AQI (US)
168AQI (US)
166AQI (US)
163AQI (US)
156AQI (US)
155AQI (US)
152AQI (US)
127AQI (US)
115AQI (US)
123AQI (US)
151AQI (US)
128AQI (US)
117AQI (US)
145AQI (US)
143AQI (US)
118AQI (US)
138AQI (US)
132AQI (US)
150AQI (US)
144AQI (US)
97AQI (US)
66AQI (US)
117AQI (US)
120AQI (US)
114AQI (US)
104AQI (US)
99AQI (US)
112AQI (US)
92AQI (US)
64AQI (US)
72AQI (US)
50AQI (US)
90AQI (US)
86AQI (US)
50AQI (US)
60AQI (US)
113AQI (US)
112AQI (US)
141AQI (US)
150AQI (US)
131AQI (US)
144AQI (US)
151AQI (US)
159AQI (US)
156AQI (US)
171AQI (US)
162AQI (US)
159AQI (US)
89AQI (US)
98AQI (US)
138AQI (US)
96AQI (US)
118AQI (US)
129AQI (US)
105AQI (US)
105AQI (US)
146AQI (US)
142AQI (US)
110AQI (US)
134AQI (US)
91AQI (US)
59AQI (US)
92AQI (US)
93AQI (US)
131AQI (US)
102AQI (US)
72AQI (US)
52AQI (US)
65AQI (US)
87AQI (US)
93AQI (US)
76AQI (US)
60AQI (US)
56AQI (US)
78AQI (US)
95AQI (US)
90AQI (US)
73AQI (US)
73AQI (US)
71AQI (US)
64AQI (US)
78AQI (US)
73AQI (US)
80AQI (US)
81AQI (US)
41AQI (US)
32AQI (US)
69AQI (US)
57AQI (US)
77AQI (US)
107AQI (US)
104AQI (US)
67AQI (US)
52AQI (US)
66AQI (US)
69AQI (US)
67AQI (US)
46AQI (US)
37AQI (US)
56AQI (US)
67AQI (US)
54AQI (US)
46AQI (US)
60AQI (US)
71AQI (US)
92AQI (US)
110AQI (US)
93AQI (US)
40AQI (US)
75AQI (US)
74AQI (US)
72AQI (US)
68AQI (US)
66AQI (US)
78AQI (US)
85AQI (US)
93AQI (US)
77AQI (US)
78AQI (US)
80AQI (US)
51AQI (US)
33AQI (US)
61AQI (US)
50AQI (US)
43AQI (US)
89AQI (US)
91AQI (US)
93AQI (US)
105AQI (US)
81AQI (US)
60AQI (US)
103AQI (US)
28AQI (US)
25AQI (US)
28AQI (US)
42AQI (US)
63AQI (US)
73AQI (US)
45AQI (US)
50AQI (US)
31AQI (US)
46AQI (US)
61AQI (US)
66AQI (US)
19AQI (US)
47AQI (US)
72AQI (US)
44AQI (US)
40AQI (US)
34AQI (US)
56AQI (US)
58AQI (US)
71AQI (US)
76AQI (US)
79AQI (US)
71AQI (US)
44AQI (US)
53AQI (US)
28AQI (US)
27AQI (US)
24AQI (US)
23AQI (US)
25AQI (US)
26AQI (US)
26AQI (US)
28AQI (US)
29AQI (US)
39AQI (US)
43AQI (US)
62AQI (US)
67AQI (US)
26AQI (US)
31AQI (US)
61AQI (US)
56AQI (US)
69AQI (US)
68AQI (US)
55AQI (US)
34AQI (US)
45AQI (US)
33AQI (US)
47AQI (US)
37AQI (US)
41AQI (US)
28AQI (US)
45AQI (US)
46AQI (US)
56AQI (US)
37AQI (US)
42AQI (US)
43AQI (US)
61AQI (US)
59AQI (US)
69AQI (US)
86AQI (US)
43AQI (US)
45AQI (US)
34AQI (US)
27AQI (US)
36AQI (US)
55AQI (US)
53AQI (US)
72AQI (US)
52AQI (US)
60AQI (US)
143AQI (US)
113AQI (US)
120AQI (US)
73AQI (US)
67AQI (US)
59AQI (US)
41AQI (US)
52AQI (US)
No. of days
202685AQI (US)
Highest AQI (US) recorded in
January143AQI (US)
Lowest AQI (US) recorded in
July41AQI (US)
2025101AQI (US)
Highest AQI (US) recorded in
December160AQI (US)
Lowest AQI (US) recorded in
September51AQI (US)
202498AQI (US)
Highest AQI (US) recorded in
January152AQI (US)
Lowest AQI (US) recorded in
July57AQI (US)
2023128AQI (US)
Highest AQI (US) recorded in
December131AQI (US)
Lowest AQI (US) recorded in
November103AQI (US)
2021144AQI (US)
Highest AQI (US) recorded in
January158AQI (US)
Lowest AQI (US) recorded in
March108AQI (US)
202093AQI (US)
Highest AQI (US) recorded in
December156AQI (US)
Lowest AQI (US) recorded in
August57AQI (US)
Most & Least Polluted Years Over the Last 6 Years
Nanzhao County Siyuan Experimental School's annual 2026 AQI (US) (85) shows an average percentage change of -22.4% (improved AQI (US)) compared to previous years: 2020 (93), 2021 (144), 2023 (128), 2024 (98), 2025 (101).