Hekou District, Shengli, Shandong, 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
Hekou District, Shengli, Shandong, China
AQI Trends: Highest and Lowest
Same Day Analysis (10th October ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 3rd highest AQI at 42 of Good air quality, showing improvement over 2024 and 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 10th Oct - 11th Oct 2025
Hekou District, Shengli, Shandong, China
5 AM10th Oct 2025
6 PM
4 AM11th Oct 2025
51AQI
32AQI
56AQI
11AQI
In the last 24 hours,
Hekou District's AQI reached its highest point of 56 at 5 AM during the Night, while the lowest point, 11, was recorded at 11 PM during the Night between 10th Oct and 11th Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Hekou District, Shengli, Shandong, China
25°C22/30°C
23°C20/26°C
24°C20/30°C
26°C21/32°C
28°C23/33°C
23°C19/27°C
20°C18/23°C
20°C15/25°C
15°C13/15°C
17°C11/25°C
21°C17/26°C
19°C17/20°C
18°C16/20°C
19°C15/25°C
22°C17/28°C
22°C18/28°C
20°C18/21°C
21°C16/26°C
23°C18/28°C
23°C18/28°C
24°C20/29°C
18°C18/20°C
20°C18/24°C
22°C18/26°C
19°C16/21°C
16°C15/16°C
18°C15/22°C
17°C14/19°C
14°C13/15°C
15°C14/16°C
--°C/°C
79AQI
57AQI
73AQI
60AQI
2025 Days Vs Air Quality
Hekou District, Shengli, Shandong, China
6%
18
77%
219
15%
42
1%
4
Total number of days with different AQI categories in last 284 days in 2025 (81 days remaining)
Under WHO’s Safe Air Quality Limits: 6%
Health Risk Level:
Extreme
In 2025, 6% 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
Hekou District, Shengli, Shandong, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
129AQI
73AQI
118AQI
146AQI
172AQI
88AQI
94AQI
52AQI
57AQI
68AQI
97AQI
91AQI
135AQI
89AQI
77AQI
82AQI
89AQI
140AQI
117AQI
140AQI
125AQI
79AQI
100AQI
107AQI
95AQI
102AQI
59AQI
89AQI
129AQI
101AQI
103AQI
88AQI
135AQI
59AQI
81AQI
55AQI
80AQI
42AQI
46AQI
73AQI
114AQI
121AQI
82AQI
113AQI
125AQI
116AQI
81AQI
68AQI
70AQI
65AQI
83AQI
73AQI
73AQI
59AQI
78AQI
94AQI
123AQI
147AQI
166AQI
124AQI
92AQI
82AQI
89AQI
78AQI
82AQI
88AQI
145AQI
142AQI
154AQI
156AQI
124AQI
96AQI
100AQI
71AQI
67AQI
63AQI
54AQI
77AQI
73AQI
71AQI
88AQI
114AQI
101AQI
87AQI
107AQI
80AQI
65AQI
57AQI
76AQI
94AQI
105AQI
62AQI
81AQI
107AQI
54AQI
89AQI
125AQI
76AQI
93AQI
88AQI
105AQI
104AQI
74AQI
63AQI
69AQI
96AQI
119AQI
72AQI
74AQI
75AQI
86AQI
62AQI
90AQI
55AQI
77AQI
77AQI
65AQI
69AQI
79AQI
92AQI
82AQI
76AQI
60AQI
71AQI
73AQI
65AQI
91AQI
74AQI
69AQI
64AQI
76AQI
76AQI
89AQI
87AQI
71AQI
103AQI
70AQI
83AQI
104AQI
101AQI
94AQI
116AQI
86AQI
84AQI
75AQI
86AQI
88AQI
97AQI
90AQI
90AQI
102AQI
92AQI
91AQI
61AQI
55AQI
73AQI
89AQI
83AQI
76AQI
92AQI
62AQI
67AQI
61AQI
57AQI
61AQI
58AQI
47AQI
62AQI
64AQI
58AQI
61AQI
67AQI
77AQI
71AQI
72AQI
75AQI
83AQI
85AQI
90AQI
72AQI
68AQI
59AQI
58AQI
57AQI
68AQI
64AQI
48AQI
61AQI
58AQI
60AQI
64AQI
65AQI
72AQI
67AQI
53AQI
56AQI
53AQI
60AQI
59AQI
58AQI
64AQI
48AQI
49AQI
42AQI
50AQI
57AQI
55AQI
46AQI
50AQI
47AQI
47AQI
53AQI
58AQI
57AQI
58AQI
55AQI
63AQI
65AQI
58AQI
57AQI
44AQI
53AQI
58AQI
63AQI
63AQI
65AQI
59AQI
57AQI
57AQI
63AQI
67AQI
64AQI
65AQI
62AQI
60AQI
61AQI
60AQI
59AQI
61AQI
56AQI
58AQI
59AQI
56AQI
58AQI
68AQI
69AQI
59AQI
66AQI
67AQI
72AQI
78AQI
70AQI
70AQI
71AQI
76AQI
75AQI
80AQI
84AQI
78AQI
52AQI
49AQI
47AQI
56AQI
61AQI
54AQI
63AQI
70AQI
80AQI
108AQI
80AQI
83AQI
103AQI
87AQI
104AQI
71AQI
47AQI
55AQI
63AQI
60AQI
74AQI
73AQI
39AQI
42AQI
101AQI
90AQI
93AQI
83AQI
84AQI
71AQI
56AQI
59AQI
71AQI
63AQI
No. of days
202578AQI
Highest AQI recorded in
January101AQI
Lowest AQI recorded in
July56AQI
202492AQI
Highest AQI recorded in
March122AQI
Lowest AQI recorded in
September54AQI
202395AQI
Highest AQI recorded in
March128AQI
Lowest AQI recorded in
August63AQI
202287AQI
Highest AQI recorded in
December109AQI
Lowest AQI recorded in
August63AQI
2021121AQI
Highest AQI recorded in
January122AQI
Lowest AQI recorded in
February109AQI
202097AQI
Highest AQI recorded in
December125AQI
Lowest AQI recorded in
August75AQI
Most & Least Polluted Years Over the Last 6 Years
Hekou District's annual 2025 AQI (78) shows an average percentage change of -19.5% (improved AQI) compared to previous years: 2020 (97), 2021 (121), 2022 (87), 2023 (95), 2024 (92).