Qinghai - China   2026-02-25   Wednesday   37.30N, 99.02E

Tianjun

Qinghai - China
2026-02-25

Air Quality

Good

Some pollutants may slightly affect very few hypersensitive individuals.

19

PM2.5

66 *

PM10

90

O3

0.4

CO

3

SO2

3

NO2

Some pollutants may slightly affect very few hypersensitive individuals.

Advise

Only very few hypersensitive people should reduce outdoor activities.

Air Quality

Today

25 Feb

57 Good

Thu

26 Feb

54 Good

Fri

27 Feb

54 Good

Sat

28 Feb

54 Good

Sun

1 Mar

52 Good

Mon

2 Mar

56 Good

Tue

3 Mar

44 Excellent

Monthly Average AQI (Tianjun)

2021/02 - 2026/01

Air quality in the last 12 months (Tianjun)

2026/01
40
42
42
36
40
28
29
29
35
29
24
24
124
218
53
45
34
46
61
52
44
50
36
102
235
109
82
61
166
91
56
2025/12
30
37
31
33
30
29
34
32
43
62
46
140
31
36
40
37
30
36
40
39
32
46
59
43
42
34
26
33
28
35
34
2025/11
41
39
34
31
46
98
110
97
56
51
46
48
41
40
42
28
42
36
37
38
37
41
67
55
43
83
36
38
30
48
2025/10
36
27
40
36
47
32
30
27
26
24
22
22
26
33
42
41
44
49
53
38
38
48
43
39
43
40
33
30
42
42
43
2025/09
44
55
59
46
51
55
47
46
46
45
45
48
62
50
102
59
42
37
37
46
43
130
50
38
37
45
49
38
38
39
2025/08
40
33
34
35
27
20
26
26
24
32
45
38
30
29
29
29
38
22
77
91
18
22
28
30
35
38
24
16
27
35
29
2025/07
31
29
28
22
21
29
54
49
35
40
39
36
56
45
40
26
26
35
21
20
22
28
33
21
23
24
24
25
45
73
66
2025/06
28
34
36
28
32
39
29
25
21
22
25
30
50
45
26
29
40
37
25
34
24
18
24
25
42
32
24
49
39
37
2025/05
47
48
72
192
80
83
96
84
36
21
22
46
50
51
29
48
56
42
34
54
128
76
78
76
33
36
39
94
65
42
40
2025/04
128
112
93
60
74
78
100
73
60
48
60
42
20
35
59
75
90
86
62
118
107
76
50
34
42
33
104
47
60
43
2025/03
60
62
59
38
85
186
105
74
103
90
84
75
50
50
44
40
45
66
64
61
60
65
61
67
89
49
158
62
70
112
152
2025/02
31
47
31
28
32
34
39
40
34
32
53
48
35
36
55
39
35
54
57
53
45
53
55
58
51
32
38
44
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
  • Excellent
  • Good
  • Lightly
  • Moderately
  • Heavily
  • Severely
Air quality source: CNEMC

*: primary pollution