Tongren, Rongwo, 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
Tongren, Rongwo, Qinghai, China
AQI Trends: Highest and Lowest
Same Day Analysis (30th September ):
On this day, AQI across the 2 years varied significantly: 2025 ranks 1st highest AQI at 64 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 30th Sep - 1st Oct 2025
Tongren, Rongwo, Qinghai, China
6 AM30th Sep 2025
7 PM
5 AM1st Oct 2025
AQI
AQI
73AQI
48AQI
In the last 24 hours,
Tongren's AQI reached its highest point of 73 at 2 PM during the Night, while the lowest point, undefined, was recorded at 5 AM during the Night between 30th Sep and 1st Oct 2025.
Day & Night AQI Trend : Sep - Oct 2025
Tongren, Rongwo, Qinghai, China
15°C8/23°C
12°C8/16°C
14°C9/20°C
15°C9/20°C
11°C8/16°C
14°C7/21°C
13°C9/18°C
13°C7/20°C
14°C9/20°C
14°C9/20°C
15°C10/21°C
14°C8/22°C
15°C9/23°C
14°C7/22°C
14°C9/19°C
11°C6/18°C
9°C5/14°C
8°C6/13°C
11°C4/19°C
9°C7/12°C
9°C7/12°C
11°C6/18°C
10°C4/17°C
11°C4/19°C
12°C8/17°C
12°C7/18°C
10°C8/12°C
9°C6/13°C
10°C6/17°C
--°C/°C
--°C/°C
66AQI
59AQI
64AQI
59AQI
2025 Days Vs Air Quality
Tongren, Rongwo, Qinghai, China
2%
5
83%
227
15%
41
Total number of days with different AQI categories in last 273 days in 2025 (92 days remaining)
Under WHO’s Safe Air Quality Limits: 2%
Health Risk Level:
Extreme
In 2025, 2% of 273 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
Tongren, Rongwo, Qinghai, China
AQI levels in 2025
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
86AQI
82AQI
96AQI
87AQI
97AQI
98AQI
90AQI
103AQI
100AQI
87AQI
84AQI
91AQI
87AQI
83AQI
99AQI
103AQI
98AQI
84AQI
91AQI
89AQI
103AQI
108AQI
130AQI
112AQI
94AQI
86AQI
92AQI
113AQI
110AQI
100AQI
108AQI
117AQI
86AQI
94AQI
83AQI
76AQI
69AQI
74AQI
81AQI
86AQI
85AQI
85AQI
97AQI
97AQI
62AQI
68AQI
68AQI
67AQI
66AQI
76AQI
72AQI
79AQI
68AQI
64AQI
69AQI
63AQI
56AQI
61AQI
67AQI
74AQI
53AQI
65AQI
66AQI
63AQI
71AQI
74AQI
72AQI
73AQI
70AQI
111AQI
93AQI
85AQI
83AQI
87AQI
86AQI
76AQI
78AQI
85AQI
84AQI
85AQI
79AQI
77AQI
97AQI
117AQI
138AQI
95AQI
107AQI
95AQI
124AQI
117AQI
133AQI
133AQI
126AQI
130AQI
107AQI
99AQI
105AQI
108AQI
109AQI
89AQI
98AQI
112AQI
94AQI
95AQI
85AQI
108AQI
101AQI
132AQI
136AQI
137AQI
131AQI
129AQI
90AQI
105AQI
96AQI
89AQI
96AQI
80AQI
85AQI
110AQI
95AQI
111AQI
113AQI
90AQI
121AQI
133AQI
129AQI
101AQI
100AQI
85AQI
79AQI
77AQI
76AQI
76AQI
81AQI
81AQI
128AQI
93AQI
98AQI
88AQI
98AQI
90AQI
73AQI
79AQI
70AQI
71AQI
72AQI
77AQI
84AQI
94AQI
89AQI
83AQI
82AQI
77AQI
83AQI
67AQI
75AQI
84AQI
84AQI
85AQI
74AQI
93AQI
91AQI
98AQI
88AQI
94AQI
87AQI
86AQI
76AQI
73AQI
72AQI
74AQI
68AQI
67AQI
64AQI
67AQI
65AQI
62AQI
64AQI
66AQI
61AQI
60AQI
60AQI
58AQI
52AQI
52AQI
51AQI
54AQI
57AQI
56AQI
60AQI
61AQI
62AQI
71AQI
69AQI
67AQI
68AQI
66AQI
70AQI
67AQI
59AQI
59AQI
64AQI
68AQI
58AQI
56AQI
58AQI
60AQI
58AQI
61AQI
62AQI
69AQI
62AQI
62AQI
61AQI
55AQI
56AQI
57AQI
59AQI
54AQI
55AQI
60AQI
61AQI
57AQI
58AQI
59AQI
58AQI
57AQI
58AQI
57AQI
56AQI
60AQI
51AQI
51AQI
49AQI
52AQI
57AQI
57AQI
51AQI
48AQI
48AQI
52AQI
54AQI
55AQI
62AQI
62AQI
70AQI
58AQI
64AQI
64AQI
64AQI
62AQI
64AQI
57AQI
57AQI
67AQI
71AQI
79AQI
66AQI
56AQI
50AQI
56AQI
56AQI
55AQI
63AQI
56AQI
59AQI
63AQI
63AQI
64AQI
62AQI
50AQI
64AQI
96AQI
76AQI
86AQI
108AQI
92AQI
77AQI
61AQI
56AQI
61AQI
No. of days
202579AQI
Highest AQI recorded in
April108AQI
Lowest AQI recorded in
August56AQI
202462AQI
Highest AQI recorded in
December94AQI
Lowest AQI recorded in
January39AQI
202343AQI
Highest AQI recorded in
December43AQI
Lowest AQI recorded in
November39AQI
202163AQI
Highest AQI recorded in
January63AQI
Lowest AQI recorded in
January63AQI
202068AQI
Highest AQI recorded in
December99AQI
Lowest AQI recorded in
July51AQI
Most & Least Polluted Years Over the Last 5 Years
Tongren's annual 2025 AQI (79) shows an average percentage change of 38.9% (worsened AQI) compared to previous years: 2020 (68), 2021 (63), 2023 (43), 2024 (62).