Sanhe, Hebei, 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
Sanhe, Hebei, China
AQI Trends: Highest and Lowest
Same Day Analysis (7th October ):
On this day, AQI across the 5 years varied significantly: 2025 ranks 3rd highest AQI at 75 of Moderate air quality, showing improvement over 2023 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 7th Oct - 8th Oct 2025
Sanhe, Hebei, China
6 AM7th Oct 2025
6 PM
5 AM8th Oct 2025
AQI
AQI
106AQI
50AQI
In the last 24 hours,
Sanhe's AQI reached its highest point of 106 at 9 PM during the Night, while the lowest point, undefined, was recorded at 6 PM during the Night between 7th Oct and 8th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Sanhe, Hebei, China
23°C18/29°C
23°C18/30°C
23°C17/27°C
24°C20/29°C
23°C20/27°C
23°C19/29°C
23°C18/30°C
19°C18/21°C
20°C16/23°C
18°C14/23°C
19°C14/25°C
19°C15/23°C
20°C14/28°C
22°C16/27°C
18°C16/20°C
17°C15/20°C
20°C14/28°C
22°C16/28°C
23°C19/28°C
19°C17/20°C
22°C16/29°C
23°C17/29°C
23°C17/29°C
24°C19/30°C
23°C19/29°C
19°C18/22°C
21°C17/26°C
19°C16/22°C
16°C13/21°C
19°C15/24°C
--°C/°C
76AQI
59AQI
74AQI
63AQI
2025 Days Vs Air Quality
Sanhe, Hebei, China
6%
17
79%
221
13%
35
3%
7
Total number of days with different AQI categories in last 281 days in 2025 (84 days remaining)
Under WHO’s Safe Air Quality Limits: 6%
Health Risk Level:
Extreme
In 2025, 6% of 281 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
Sanhe, Hebei, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
84AQI
65AQI
75AQI
100AQI
79AQI
52AQI
51AQI
37AQI
41AQI
44AQI
62AQI
56AQI
83AQI
45AQI
61AQI
61AQI
100AQI
127AQI
74AQI
133AQI
84AQI
116AQI
129AQI
153AQI
164AQI
121AQI
71AQI
78AQI
139AQI
101AQI
145AQI
128AQI
96AQI
61AQI
56AQI
51AQI
53AQI
37AQI
42AQI
42AQI
108AQI
137AQI
73AQI
122AQI
102AQI
119AQI
57AQI
63AQI
65AQI
59AQI
57AQI
48AQI
49AQI
43AQI
71AQI
62AQI
88AQI
138AQI
153AQI
198AQI
99AQI
99AQI
96AQI
135AQI
62AQI
135AQI
135AQI
166AQI
167AQI
186AQI
90AQI
143AQI
97AQI
102AQI
62AQI
60AQI
57AQI
61AQI
47AQI
54AQI
62AQI
110AQI
57AQI
73AQI
95AQI
55AQI
68AQI
53AQI
68AQI
89AQI
68AQI
60AQI
87AQI
90AQI
56AQI
98AQI
79AQI
77AQI
80AQI
105AQI
121AQI
98AQI
91AQI
78AQI
80AQI
119AQI
86AQI
80AQI
77AQI
97AQI
117AQI
66AQI
84AQI
54AQI
75AQI
108AQI
61AQI
84AQI
86AQI
72AQI
65AQI
69AQI
55AQI
73AQI
84AQI
66AQI
97AQI
109AQI
67AQI
83AQI
92AQI
106AQI
96AQI
70AQI
76AQI
112AQI
67AQI
89AQI
86AQI
121AQI
98AQI
114AQI
91AQI
79AQI
89AQI
92AQI
84AQI
98AQI
99AQI
106AQI
109AQI
105AQI
69AQI
50AQI
53AQI
70AQI
59AQI
61AQI
68AQI
68AQI
60AQI
71AQI
80AQI
82AQI
82AQI
60AQI
52AQI
67AQI
72AQI
68AQI
58AQI
54AQI
49AQI
63AQI
72AQI
67AQI
71AQI
78AQI
72AQI
83AQI
74AQI
69AQI
71AQI
65AQI
70AQI
66AQI
57AQI
62AQI
66AQI
67AQI
70AQI
75AQI
75AQI
62AQI
63AQI
68AQI
63AQI
56AQI
62AQI
66AQI
57AQI
60AQI
69AQI
65AQI
63AQI
67AQI
67AQI
66AQI
58AQI
49AQI
51AQI
62AQI
67AQI
66AQI
61AQI
63AQI
58AQI
66AQI
63AQI
65AQI
55AQI
60AQI
64AQI
66AQI
58AQI
66AQI
71AQI
58AQI
62AQI
64AQI
58AQI
59AQI
58AQI
53AQI
53AQI
54AQI
55AQI
59AQI
56AQI
50AQI
64AQI
63AQI
59AQI
58AQI
71AQI
76AQI
82AQI
85AQI
66AQI
66AQI
64AQI
75AQI
69AQI
76AQI
81AQI
79AQI
70AQI
64AQI
54AQI
48AQI
49AQI
58AQI
60AQI
69AQI
63AQI
66AQI
77AQI
61AQI
69AQI
96AQI
67AQI
63AQI
70AQI
76AQI
76AQI
85AQI
94AQI
111AQI
58AQI
75AQI
88AQI
78AQI
96AQI
84AQI
88AQI
68AQI
64AQI
60AQI
68AQI
82AQI
No. of days
202577AQI
Highest AQI recorded in
March96AQI
Lowest AQI recorded in
August60AQI
202476AQI
Highest AQI recorded in
October94AQI
Lowest AQI recorded in
August59AQI
202387AQI
Highest AQI recorded in
March125AQI
Lowest AQI recorded in
December70AQI
202286AQI
Highest AQI recorded in
January103AQI
Lowest AQI recorded in
December63AQI
202185AQI
Highest AQI recorded in
March162AQI
Lowest AQI recorded in
August42AQI
202090AQI
Highest AQI recorded in
July101AQI
Lowest AQI recorded in
September75AQI
Most & Least Polluted Years Over the Last 6 Years
Sanhe's annual 2025 AQI (77) shows an average percentage change of -8.3% (improved AQI) compared to previous years: 2020 (90), 2021 (85), 2022 (86), 2023 (87), 2024 (76).