Nanzhao County Industrial Zone, Nanyang, Henan, 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
Nanzhao County Industrial Zone, Nanyang, Henan, China
AQI Trends: Highest and Lowest
Same Day Analysis (22nd September ):
On this day, AQI across the 2 years varied significantly: 2025 ranks 2nd highest AQI at 47 of Good air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 22nd Sep - 23rd Sep 2025
Nanzhao County Industrial Zone, Nanyang, Henan, China
6 AM22nd Sep 2025
6 PM
5 AM23rd Sep 2025
55AQI
28AQI
56AQI
40AQI
In the last 24 hours,
Nanzhao County Industrial Zone's AQI reached its highest point of 56 at 1 AM during the Night, while the lowest point, 28, was recorded at 3 PM during the Day between 22nd Sep and 23rd Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Nanzhao County Industrial Zone, Nanyang, Henan, China
22°C20/21°C
23°C19/26°C
23°C19/25°C
25°C20/28°C
24°C20/27°C
23°C19/27°C
21°C19/21°C
22°C18/26°C
23°C17/29°C
24°C21/29°C
22°C21/24°C
20°C17/21°C
20°C18/21°C
17°C13/17°C
20°C17/22°C
18°C16/20°C
19°C14/23°C
19°C16/21°C
18°C15/19°C
18°C16/21°C
21°C15/25°C
23°C16/29°C
23°C19/26°C
23°C19/25°C
16°C14/16°C
12°C10/12°C
13°C10/15°C
16°C10/21°C
16°C13/18°C
15°C13/15°C
--°C/°C
58AQI
48AQI
58AQI
53AQI
2025 Days Vs Air Quality
Nanzhao County Industrial Zone, Nanyang, Henan, China
6%
15
56%
148
28%
75
9%
24
1%
3
Total number of days with different AQI categories in last 266 days in 2025 (99 days remaining)
Under WHO’s Safe Air Quality Limits: 6%
Health Risk Level:
Extreme
In 2025, 6% of 266 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
Nanzhao County Industrial Zone, Nanyang, Henan, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
173AQI
178AQI
179AQI
191AQI
152AQI
133AQI
128AQI
119AQI
111AQI
132AQI
119AQI
115AQI
146AQI
108AQI
101AQI
120AQI
127AQI
151AQI
159AQI
166AQI
176AQI
202AQI
170AQI
157AQI
132AQI
100AQI
99AQI
138AQI
202AQI
176AQI
177AQI
162AQI
166AQI
139AQI
120AQI
98AQI
97AQI
86AQI
80AQI
102AQI
124AQI
144AQI
114AQI
136AQI
136AQI
137AQI
118AQI
119AQI
122AQI
146AQI
145AQI
161AQI
161AQI
163AQI
159AQI
151AQI
149AQI
151AQI
157AQI
141AQI
89AQI
89AQI
92AQI
112AQI
132AQI
137AQI
140AQI
145AQI
135AQI
148AQI
141AQI
154AQI
105AQI
111AQI
79AQI
80AQI
74AQI
76AQI
70AQI
79AQI
83AQI
99AQI
108AQI
95AQI
120AQI
121AQI
125AQI
100AQI
104AQI
101AQI
107AQI
81AQI
99AQI
118AQI
103AQI
113AQI
108AQI
118AQI
125AQI
121AQI
114AQI
204AQI
128AQI
96AQI
94AQI
101AQI
115AQI
118AQI
110AQI
101AQI
94AQI
130AQI
124AQI
97AQI
104AQI
93AQI
93AQI
76AQI
78AQI
87AQI
93AQI
95AQI
77AQI
83AQI
100AQI
180AQI
145AQI
132AQI
110AQI
93AQI
86AQI
91AQI
99AQI
85AQI
98AQI
91AQI
127AQI
117AQI
129AQI
108AQI
111AQI
102AQI
105AQI
100AQI
96AQI
89AQI
102AQI
95AQI
96AQI
85AQI
75AQI
79AQI
80AQI
81AQI
80AQI
76AQI
77AQI
73AQI
70AQI
71AQI
74AQI
71AQI
74AQI
73AQI
67AQI
67AQI
67AQI
70AQI
63AQI
50AQI
62AQI
67AQI
68AQI
64AQI
66AQI
65AQI
57AQI
55AQI
57AQI
52AQI
55AQI
48AQI
43AQI
46AQI
51AQI
51AQI
52AQI
54AQI
62AQI
58AQI
62AQI
75AQI
78AQI
67AQI
64AQI
65AQI
71AQI
64AQI
64AQI
67AQI
63AQI
62AQI
65AQI
46AQI
48AQI
53AQI
57AQI
54AQI
55AQI
53AQI
57AQI
59AQI
62AQI
61AQI
63AQI
68AQI
67AQI
61AQI
59AQI
59AQI
52AQI
55AQI
54AQI
56AQI
57AQI
56AQI
58AQI
49AQI
54AQI
57AQI
58AQI
52AQI
55AQI
55AQI
55AQI
54AQI
57AQI
60AQI
61AQI
60AQI
60AQI
61AQI
57AQI
57AQI
61AQI
63AQI
49AQI
50AQI
62AQI
62AQI
52AQI
53AQI
59AQI
51AQI
47AQI
55AQI
56AQI
55AQI
60AQI
49AQI
45AQI
41AQI
46AQI
59AQI
47AQI
146AQI
134AQI
109AQI
108AQI
103AQI
68AQI
59AQI
58AQI
54AQI
No. of days
202594AQI
Highest AQI recorded in
January146AQI
Lowest AQI recorded in
September54AQI
202498AQI
Highest AQI recorded in
January160AQI
Lowest AQI recorded in
July57AQI
2023131AQI
Highest AQI recorded in
December133AQI
Lowest AQI recorded in
November103AQI
2021116AQI
Highest AQI recorded in
January131AQI
Lowest AQI recorded in
March79AQI
202075AQI
Highest AQI recorded in
December130AQI
Lowest AQI recorded in
August39AQI
Most & Least Polluted Years Over the Last 5 Years
Nanzhao County Industrial Zone's annual 2025 AQI (94) shows an average percentage change of -6.5% (improved AQI) compared to previous years: 2020 (75), 2021 (116), 2023 (131), 2024 (98).