Nangandao, 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
Nangandao, Henan, China
AQI Trends: Highest and Lowest
Same Day Analysis (16th September ):
On this day, AQI across the 5 years varied significantly: 2025 ranks the most lowest AQI at 60 of Moderate air quality, showing improvement over 2024, 2023, 2022 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 16th Sep - 17th Sep 2025
Nangandao, Henan, China
5 AM16th Sep 2025
6 PM
4 AM17th Sep 2025
74AQI
38AQI
64AQI
56AQI
In the last 24 hours,
Nangandao's AQI reached its highest point of 74 at 9 AM during the Day, while the lowest point, 38, was recorded at 2 PM during the Day between 16th Sep and 17th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
Nangandao, Henan, China
30°C25/37°C
32°C26/38°C
31°C26/37°C
31°C25/37°C
30°C27/35°C
28°C25/33°C
23°C22/23°C
26°C22/30°C
27°C23/31°C
27°C23/32°C
28°C24/33°C
26°C23/31°C
26°C22/30°C
26°C22/31°C
27°C22/33°C
26°C22/31°C
22°C19/24°C
21°C20/21°C
22°C20/25°C
23°C20/27°C
23°C19/30°C
23°C19/27°C
23°C18/29°C
23°C20/27°C
20°C17/22°C
21°C18/25°C
24°C20/29°C
25°C21/31°C
26°C23/30°C
23°C20/24°C
--°C/°C
67AQI
59AQI
62AQI
61AQI
2025 Days Vs Air Quality
Nangandao, Henan, China
58%
151
32%
83
9%
24
0.3%
1
Total number of days with different AQI categories in last 260 days in 2025 (105 days remaining)
Under WHO’s Safe Air Quality Limits: 0%
Health Risk Level:
Extreme
In 2025, 0% 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
Nangandao, Henan, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
158AQI
143AQI
161AQI
171AQI
134AQI
104AQI
107AQI
82AQI
88AQI
126AQI
89AQI
92AQI
124AQI
111AQI
92AQI
95AQI
131AQI
140AQI
146AQI
167AQI
194AQI
158AQI
159AQI
166AQI
169AQI
112AQI
85AQI
97AQI
188AQI
159AQI
164AQI
164AQI
181AQI
135AQI
134AQI
93AQI
101AQI
76AQI
87AQI
113AQI
135AQI
150AQI
123AQI
112AQI
133AQI
112AQI
99AQI
113AQI
125AQI
99AQI
124AQI
138AQI
145AQI
110AQI
150AQI
128AQI
148AQI
155AQI
167AQI
160AQI
101AQI
92AQI
96AQI
138AQI
134AQI
144AQI
142AQI
154AQI
151AQI
161AQI
154AQI
160AQI
110AQI
141AQI
78AQI
88AQI
77AQI
97AQI
71AQI
76AQI
79AQI
103AQI
384AQI
183AQI
148AQI
113AQI
124AQI
87AQI
99AQI
102AQI
98AQI
70AQI
95AQI
123AQI
79AQI
113AQI
112AQI
117AQI
136AQI
127AQI
144AQI
138AQI
109AQI
82AQI
96AQI
117AQI
136AQI
125AQI
124AQI
114AQI
108AQI
95AQI
119AQI
78AQI
110AQI
98AQI
107AQI
86AQI
87AQI
107AQI
87AQI
110AQI
73AQI
88AQI
139AQI
124AQI
141AQI
130AQI
104AQI
89AQI
82AQI
87AQI
107AQI
100AQI
81AQI
106AQI
158AQI
98AQI
126AQI
109AQI
126AQI
111AQI
139AQI
103AQI
114AQI
98AQI
113AQI
107AQI
105AQI
97AQI
90AQI
93AQI
102AQI
78AQI
87AQI
82AQI
92AQI
106AQI
105AQI
101AQI
87AQI
91AQI
86AQI
86AQI
80AQI
73AQI
69AQI
73AQI
70AQI
66AQI
70AQI
70AQI
64AQI
66AQI
70AQI
78AQI
65AQI
68AQI
61AQI
62AQI
60AQI
53AQI
55AQI
52AQI
56AQI
52AQI
52AQI
61AQI
63AQI
63AQI
73AQI
81AQI
75AQI
70AQI
71AQI
71AQI
72AQI
64AQI
68AQI
69AQI
71AQI
66AQI
68AQI
58AQI
57AQI
60AQI
59AQI
59AQI
60AQI
60AQI
58AQI
60AQI
62AQI
63AQI
63AQI
67AQI
70AQI
70AQI
68AQI
63AQI
56AQI
62AQI
62AQI
58AQI
59AQI
63AQI
63AQI
55AQI
58AQI
62AQI
61AQI
57AQI
56AQI
60AQI
60AQI
59AQI
67AQI
63AQI
67AQI
63AQI
64AQI
64AQI
63AQI
64AQI
62AQI
63AQI
52AQI
56AQI
66AQI
69AQI
64AQI
59AQI
63AQI
60AQI
58AQI
66AQI
66AQI
64AQI
60AQI
133AQI
127AQI
127AQI
108AQI
108AQI
79AQI
63AQI
62AQI
62AQI
No. of days
202598AQI
Highest AQI recorded in
January133AQI
Lowest AQI recorded in
September62AQI
2024109AQI
Highest AQI recorded in
January149AQI
Lowest AQI recorded in
August65AQI
2023112AQI
Highest AQI recorded in
January156AQI
Lowest AQI recorded in
July61AQI
2022118AQI
Highest AQI recorded in
January174AQI
Lowest AQI recorded in
July66AQI
2021117AQI
Highest AQI recorded in
March182AQI
Lowest AQI recorded in
July61AQI
2020113AQI
Highest AQI recorded in
December157AQI
Lowest AQI recorded in
August88AQI
Most & Least Polluted Years Over the Last 6 Years
Nangandao's annual 2025 AQI (98) shows an average percentage change of -13.4% (improved AQI) compared to previous years: 2020 (113), 2021 (117), 2022 (118), 2023 (112), 2024 (109).