No 5 Water Plant, Xining, Qinghai, 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
No 5 Water Plant, Xining, Qinghai, China
AQI Trends: Highest and Lowest
Same Day Analysis (19th September ):
On this day, AQI across the 2 years varied significantly: 2025 ranks 2nd highest AQI at 67 of Moderate air quality, showing improvement over 2024 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 19th Sep - 20th Sep 2025
No 5 Water Plant, Xining, Qinghai, China
6 AM19th Sep 2025
7 PM
5 AM20th Sep 2025
AQI
AQI
90AQI
51AQI
In the last 24 hours,
No 5 Water Plant's AQI reached its highest point of 90 at 10 AM during the Night, while the lowest point, undefined, was recorded at 5 AM during the Night between 19th Sep and 20th Sep 2025.
Day & Night AQI Trend : Aug - Sep 2025
No 5 Water Plant, Xining, Qinghai, China
14°C9/20°C
12°C9/16°C
14°C6/22°C
17°C10/24°C
17°C11/23°C
16°C13/20°C
11°C8/12°C
9°C7/10°C
12°C5/20°C
13°C6/21°C
14°C7/23°C
16°C9/24°C
13°C9/18°C
15°C10/22°C
15°C8/23°C
13°C9/20°C
14°C7/23°C
15°C9/21°C
14°C9/21°C
15°C8/23°C
15°C9/23°C
16°C10/23°C
14°C8/23°C
16°C8/26°C
15°C8/23°C
15°C10/22°C
12°C7/20°C
9°C6/16°C
10°C6/16°C
--°C/°C
--°C/°C
67AQI
59AQI
64AQI
61AQI
2025 Days Vs Air Quality
No 5 Water Plant, Xining, Qinghai, China
0.3%
1
75%
196
25%
65
Total number of days with different AQI categories in last 262 days in 2025 (103 days remaining)
Under WHO’s Safe Air Quality Limits: 0.38%
Health Risk Level:
Extreme
In 2025, 0.38% of 262 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
No 5 Water Plant, Xining, Qinghai, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
122AQI
114AQI
138AQI
116AQI
127AQI
125AQI
125AQI
139AQI
135AQI
107AQI
104AQI
95AQI
100AQI
103AQI
125AQI
125AQI
119AQI
101AQI
114AQI
108AQI
128AQI
118AQI
136AQI
125AQI
106AQI
88AQI
107AQI
123AQI
133AQI
116AQI
117AQI
121AQI
95AQI
104AQI
96AQI
88AQI
93AQI
83AQI
96AQI
95AQI
96AQI
100AQI
103AQI
112AQI
77AQI
82AQI
73AQI
73AQI
70AQI
80AQI
78AQI
85AQI
81AQI
78AQI
76AQI
69AQI
67AQI
73AQI
70AQI
80AQI
64AQI
75AQI
82AQI
66AQI
80AQI
79AQI
76AQI
76AQI
74AQI
132AQI
98AQI
98AQI
90AQI
99AQI
98AQI
92AQI
91AQI
89AQI
94AQI
93AQI
93AQI
82AQI
102AQI
115AQI
128AQI
96AQI
102AQI
95AQI
115AQI
116AQI
140AQI
141AQI
135AQI
143AQI
124AQI
118AQI
128AQI
111AQI
113AQI
90AQI
97AQI
99AQI
82AQI
88AQI
84AQI
116AQI
104AQI
116AQI
133AQI
140AQI
125AQI
128AQI
95AQI
97AQI
96AQI
91AQI
86AQI
89AQI
87AQI
93AQI
83AQI
101AQI
121AQI
103AQI
120AQI
127AQI
135AQI
109AQI
97AQI
82AQI
93AQI
87AQI
90AQI
73AQI
81AQI
81AQI
116AQI
89AQI
100AQI
89AQI
105AQI
94AQI
88AQI
81AQI
76AQI
78AQI
75AQI
84AQI
87AQI
99AQI
102AQI
85AQI
83AQI
77AQI
82AQI
83AQI
87AQI
93AQI
94AQI
85AQI
79AQI
83AQI
90AQI
91AQI
87AQI
87AQI
85AQI
98AQI
95AQI
90AQI
89AQI
82AQI
59AQI
67AQI
63AQI
65AQI
65AQI
63AQI
65AQI
64AQI
65AQI
65AQI
63AQI
65AQI
52AQI
56AQI
56AQI
59AQI
60AQI
64AQI
64AQI
63AQI
65AQI
74AQI
72AQI
76AQI
68AQI
64AQI
70AQI
66AQI
60AQI
61AQI
65AQI
68AQI
59AQI
57AQI
62AQI
66AQI
61AQI
62AQI
65AQI
74AQI
64AQI
64AQI
64AQI
56AQI
61AQI
60AQI
65AQI
53AQI
58AQI
61AQI
62AQI
58AQI
60AQI
59AQI
59AQI
57AQI
60AQI
61AQI
58AQI
63AQI
52AQI
53AQI
54AQI
57AQI
61AQI
56AQI
52AQI
50AQI
53AQI
54AQI
57AQI
58AQI
64AQI
63AQI
69AQI
65AQI
71AQI
70AQI
67AQI
68AQI
69AQI
66AQI
61AQI
71AQI
75AQI
88AQI
79AQI
63AQI
60AQI
67AQI
117AQI
86AQI
93AQI
110AQI
95AQI
80AQI
64AQI
58AQI
68AQI
No. of days
202586AQI
Highest AQI recorded in
January117AQI
Lowest AQI recorded in
August58AQI
202473AQI
Highest AQI recorded in
December126AQI
Lowest AQI recorded in
January45AQI
202341AQI
Highest AQI recorded in
December42AQI
Lowest AQI recorded in
November34AQI
202182AQI
Highest AQI recorded in
January82AQI
Lowest AQI recorded in
January82AQI
202076AQI
Highest AQI recorded in
December121AQI
Lowest AQI recorded in
May46AQI
Most & Least Polluted Years Over the Last 5 Years
No 5 Water Plant's annual 2025 AQI (86) shows an average percentage change of 37.02% (worsened AQI) compared to previous years: 2020 (76), 2021 (82), 2023 (41), 2024 (73).