Yinan County Environmental Protection Bureau Automatic Station, Zhumadian, Henan, China Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
October Air Quality Analysis
Yinan County Environmental Protection Bureau Automatic Station, Zhumadian, Henan, China
AQI Trends: Highest and Lowest
Same Day Analysis (11th October ):
On this day, AQI across the 2 years varied significantly: 2025 ranks 2nd highest AQI at 50 of Good air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 11th Oct - 12th Oct 2025
Yinan County Environmental Protection Bureau Automatic Station, Zhumadian, Henan, China
6 AM11th Oct 2025
6 PM
5 AM12th Oct 2025
AQI
AQI
74AQI
44AQI
In the last 24 hours,
Yinan County Environmental Protection Bureau Automatic Station's AQI reached its highest point of 74 at 2 AM during the Night, while the lowest point, undefined, was recorded at 5 AM during the Night between 11th Oct and 12th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Yinan County Environmental Protection Bureau Automatic Station, Zhumadian, Henan, China
20°C18/22°C
23°C20/28°C
25°C20/30°C
27°C23/32°C
26°C23/32°C
20°C18/21°C
17°C16/18°C
15°C15/16°C
18°C13/24°C
19°C16/22°C
18°C17/18°C
16°C16/16°C
20°C15/25°C
21°C17/24°C
19°C19/20°C
20°C19/21°C
20°C19/22°C
20°C18/22°C
23°C18/28°C
21°C21/22°C
18°C17/18°C
18°C17/19°C
20°C18/23°C
22°C19/25°C
20°C17/21°C
19°C17/23°C
23°C19/28°C
18°C14/18°C
14°C13/15°C
--°C/°C
--°C/°C
57AQI
52AQI
62AQI
56AQI
2025 Days Vs Air Quality
Yinan County Environmental Protection Bureau Automatic Station, Zhumadian, Henan, China
9%
26
52%
149
29%
83
8%
23
1%
3
Total number of days with different AQI categories in last 284 days in 2025 (81 days remaining)
Under WHO’s Safe Air Quality Limits: 9%
Health Risk Level:
Extreme
In 2025, 9% of 284 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
Yinan County Environmental Protection Bureau Automatic Station, Zhumadian, Henan, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
165AQI
177AQI
178AQI
206AQI
154AQI
142AQI
128AQI
122AQI
97AQI
123AQI
119AQI
111AQI
146AQI
142AQI
99AQI
125AQI
127AQI
154AQI
159AQI
170AQI
173AQI
207AQI
171AQI
149AQI
133AQI
110AQI
85AQI
123AQI
210AQI
161AQI
176AQI
160AQI
169AQI
171AQI
134AQI
112AQI
97AQI
87AQI
83AQI
96AQI
114AQI
138AQI
143AQI
127AQI
142AQI
140AQI
120AQI
114AQI
125AQI
145AQI
138AQI
145AQI
154AQI
161AQI
135AQI
150AQI
150AQI
155AQI
158AQI
156AQI
103AQI
95AQI
94AQI
116AQI
132AQI
128AQI
144AQI
149AQI
147AQI
153AQI
158AQI
160AQI
104AQI
131AQI
86AQI
85AQI
84AQI
87AQI
73AQI
72AQI
82AQI
98AQI
115AQI
96AQI
125AQI
120AQI
125AQI
105AQI
114AQI
109AQI
109AQI
96AQI
104AQI
132AQI
102AQI
113AQI
107AQI
117AQI
128AQI
132AQI
120AQI
151AQI
118AQI
96AQI
94AQI
100AQI
112AQI
112AQI
100AQI
106AQI
99AQI
100AQI
114AQI
95AQI
103AQI
95AQI
99AQI
83AQI
87AQI
86AQI
87AQI
95AQI
76AQI
87AQI
102AQI
132AQI
140AQI
116AQI
104AQI
88AQI
88AQI
88AQI
96AQI
95AQI
108AQI
97AQI
135AQI
106AQI
127AQI
108AQI
105AQI
105AQI
120AQI
105AQI
104AQI
102AQI
112AQI
110AQI
108AQI
92AQI
85AQI
84AQI
86AQI
89AQI
95AQI
86AQI
88AQI
83AQI
83AQI
77AQI
79AQI
81AQI
81AQI
79AQI
74AQI
69AQI
69AQI
72AQI
56AQI
48AQI
57AQI
61AQI
69AQI
65AQI
64AQI
66AQI
56AQI
55AQI
51AQI
46AQI
51AQI
49AQI
43AQI
49AQI
50AQI
53AQI
56AQI
60AQI
63AQI
52AQI
63AQI
76AQI
68AQI
62AQI
64AQI
63AQI
67AQI
65AQI
65AQI
65AQI
63AQI
59AQI
56AQI
47AQI
50AQI
54AQI
54AQI
52AQI
51AQI
52AQI
56AQI
57AQI
58AQI
55AQI
58AQI
62AQI
63AQI
63AQI
58AQI
56AQI
53AQI
56AQI
47AQI
48AQI
50AQI
57AQI
51AQI
46AQI
51AQI
54AQI
55AQI
47AQI
49AQI
49AQI
49AQI
52AQI
54AQI
56AQI
58AQI
59AQI
60AQI
62AQI
56AQI
55AQI
56AQI
59AQI
68AQI
64AQI
62AQI
65AQI
53AQI
55AQI
57AQI
53AQI
46AQI
57AQI
53AQI
51AQI
58AQI
51AQI
48AQI
43AQI
53AQI
62AQI
49AQI
50AQI
48AQI
60AQI
58AQI
43AQI
55AQI
63AQI
54AQI
59AQI
42AQI
65AQI
75AQI
69AQI
63AQI
77AQI
106AQI
84AQI
44AQI
50AQI
147AQI
134AQI
114AQI
107AQI
104AQI
71AQI
58AQI
55AQI
55AQI
67AQI
No. of days
202592AQI
Highest AQI recorded in
January147AQI
Lowest AQI recorded in
August55AQI
2024100AQI
Highest AQI recorded in
December139AQI
Lowest AQI recorded in
August62AQI
2023107AQI
Highest AQI recorded in
November136AQI
Lowest AQI recorded in
December104AQI
2020103AQI
Highest AQI recorded in
November118AQI
Lowest AQI recorded in
August86AQI
Most & Least Polluted Years Over the Last 4 Years
Yinan County Environmental Protection Bureau Automatic Station's annual 2025 AQI (92) shows an average percentage change of -10.4% (improved AQI) compared to previous years: 2020 (103), 2023 (107), 2024 (100).