Zhengding Unicom, Shijiazhuang, Hebei, China Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
July Air Quality Analysis
Zhengding Unicom, Shijiazhuang, Hebei, China
AQI Trends: Highest and Lowest
Same Day Analysis (2nd July ):
On this day, AQI across the 4 years varied significantly: 2025 ranks 3rd highest AQI at 74 of Moderate air quality, showing improvement over 2022 and 2021 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 2nd Jul - 3rd Jul 2025
Zhengding Unicom, Shijiazhuang, Hebei, China
5 AM2nd Jul 2025
7 PM
4 AM3rd Jul 2025
94AQI
66AQI
69AQI
66AQI
In the last 24 hours,
Zhengding Unicom's AQI reached its highest point of 94 at 10 AM during the Day, while the lowest point, 66, was recorded at 12 AM during the Night between 2nd Jul and 3rd Jul 2025.
Day & Night AQI Trend : Jun - Jul 2025
Zhengding Unicom, Shijiazhuang, Hebei, China
27°C20/35°C
29°C21/37°C
32°C23/41°C
33°C26/41°C
30°C24/36°C
28°C22/37°C
31°C24/42°C
29°C23/35°C
31°C22/39°C
33°C26/39°C
32°C25/39°C
25°C23/28°C
26°C20/33°C
28°C21/35°C
32°C24/40°C
34°C28/42°C
27°C24/30°C
29°C24/35°C
32°C24/38°C
33°C25/40°C
33°C27/38°C
33°C27/40°C
32°C27/38°C
25°C21/28°C
24°C21/29°C
24°C22/28°C
27°C21/34°C
28°C24/35°C
29°C24/35°C
30°C26/35°C
0°C0/0°C
77AQI
77AQI
75AQI
75AQI
2025 Days Vs Air Quality
Zhengding Unicom, Shijiazhuang, Hebei, China
57%
105
34%
63
8%
15
Total number of days with different AQI categories in last 184 days in 2025 (181 days remaining)
Under WHO’s Safe Air Quality Limits: 0%
Health Risk Level:
Extreme
In 2025, 0% of 184 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
Zhengding Unicom, Shijiazhuang, Hebei, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
118AQI
107AQI
113AQI
130AQI
96AQI
77AQI
65AQI
59AQI
66AQI
71AQI
98AQI
79AQI
112AQI
76AQI
84AQI
76AQI
122AQI
138AQI
107AQI
155AQI
131AQI
135AQI
140AQI
151AQI
163AQI
106AQI
83AQI
94AQI
186AQI
128AQI
167AQI
153AQI
179AQI
106AQI
96AQI
68AQI
128AQI
57AQI
62AQI
76AQI
114AQI
141AQI
93AQI
102AQI
110AQI
101AQI
69AQI
74AQI
86AQI
99AQI
114AQI
124AQI
113AQI
76AQI
100AQI
95AQI
113AQI
139AQI
157AQI
192AQI
153AQI
118AQI
104AQI
131AQI
86AQI
140AQI
136AQI
153AQI
163AQI
174AQI
144AQI
159AQI
130AQI
108AQI
78AQI
79AQI
74AQI
74AQI
58AQI
60AQI
66AQI
118AQI
82AQI
111AQI
98AQI
115AQI
104AQI
75AQI
81AQI
86AQI
78AQI
68AQI
91AQI
113AQI
68AQI
113AQI
128AQI
106AQI
126AQI
102AQI
180AQI
84AQI
89AQI
72AQI
74AQI
113AQI
129AQI
101AQI
106AQI
120AQI
120AQI
81AQI
102AQI
67AQI
101AQI
113AQI
92AQI
76AQI
73AQI
89AQI
69AQI
94AQI
58AQI
83AQI
108AQI
79AQI
104AQI
119AQI
73AQI
88AQI
69AQI
82AQI
99AQI
73AQI
80AQI
92AQI
76AQI
86AQI
102AQI
117AQI
110AQI
122AQI
117AQI
88AQI
94AQI
91AQI
101AQI
99AQI
98AQI
98AQI
109AQI
130AQI
98AQI
74AQI
65AQI
74AQI
79AQI
83AQI
87AQI
91AQI
72AQI
86AQI
91AQI
93AQI
85AQI
66AQI
61AQI
65AQI
79AQI
73AQI
76AQI
69AQI
62AQI
67AQI
67AQI
75AQI
75AQI
80AQI
78AQI
73AQI
86AQI
74AQI
74AQI
111AQI
105AQI
111AQI
99AQI
93AQI
79AQI
74AQI
No. of days
202599AQI
Highest AQI recorded in
March111AQI
Lowest AQI recorded in
July74AQI
202496AQI
Highest AQI recorded in
January150AQI
Lowest AQI recorded in
March61AQI
2023125AQI
Highest AQI recorded in
December130AQI
Lowest AQI recorded in
November79AQI
2022110AQI
Highest AQI recorded in
January158AQI
Lowest AQI recorded in
August71AQI
202187AQI
Highest AQI recorded in
March201AQI
Lowest AQI recorded in
October1AQI
2020115AQI
Highest AQI recorded in
November142AQI
Lowest AQI recorded in
August89AQI
Most & Least Polluted Years Over the Last 6 Years
Zhengding Unicom's annual 2025 AQI (99) shows an average percentage change of -5.2% (improved AQI) compared to previous years: 2020 (115), 2021 (87), 2022 (110), 2023 (125), 2024 (96).