Air Quality
Excellent
No health implications.
9
PM2.5
21
PM10
52
O3
0.7
CO
12
SO2
17
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
14 Dec
61
Good
Mon
15 Dec
68
Good
Tue
16 Dec
69
Good
Wed
17 Dec
51
Good
Thu
18 Dec
54
Good
Fri
19 Dec
35
Excellent
Sat
20 Dec
27
Excellent
Tiandong Air quality rank
Air quality in the last 12 months (Tiandong)
|
2025/11
|
21
|
20
|
17
|
11
|
23
|
31
|
48
|
37
|
19
|
16
|
18
|
22
|
33
|
42
|
50
|
45
|
51
|
17
|
18
|
28
|
36
|
43
|
48
|
56
|
49
|
49
|
51
|
55
|
60
|
67
|
|
|
2025/10
|
32
|
32
|
36
|
31
|
40
|
17
|
20
|
31
|
35
|
45
|
45
|
45
|
46
|
28
|
21
|
28
|
38
|
53
|
35
|
16
|
13
|
12
|
22
|
37
|
39
|
29
|
28
|
38
|
53
|
56
|
26
|
|
2025/09
|
33
|
34
|
32
|
30
|
33
|
36
|
41
|
43
|
23
|
32
|
28
|
23
|
25
|
33
|
30
|
29
|
23
|
25
|
35
|
42
|
39
|
29
|
22
|
19
|
12
|
15
|
27
|
28
|
24
|
20
|
|
|
2025/08
|
21
|
27
|
43
|
36
|
38
|
31
|
25
|
35
|
34
|
31
|
30
|
43
|
43
|
34
|
18
|
18
|
25
|
19
|
11
|
21
|
26
|
32
|
34
|
34
|
25
|
24
|
29
|
28
|
39
|
28
|
34
|
|
2025/07
|
22
|
17
|
26
|
31
|
39
|
42
|
40
|
33
|
38
|
22
|
22
|
26
|
29
|
25
|
34
|
37
|
34
|
50
|
38
|
32
|
23
|
15
|
13
|
15
|
25
|
32
|
29
|
35
|
47
|
40
|
30
|
|
2025/06
|
41
|
32
|
25
|
30
|
47
|
45
|
41
|
36
|
29
|
29
|
42
|
30
|
28
|
35
|
32
|
31
|
30
|
31
|
29
|
24
|
19
|
26
|
30
|
30
|
30
|
30
|
31
|
28
|
25
|
22
|
|
|
2025/05
|
36
|
51
|
56
|
45
|
42
|
28
|
39
|
56
|
32
|
32
|
25
|
46
|
51
|
47
|
35
|
27
|
35
|
28
|
31
|
34
|
36
|
33
|
20
|
37
|
43
|
33
|
46
|
49
|
18
|
32
|
41
|
|
2025/04
|
44
|
60
|
68
|
59
|
67
|
103
|
106
|
86
|
61
|
54
|
61
|
52
|
170
|
150
|
101
|
90
|
83
|
70
|
59
|
54
|
49
|
51
|
29
|
38
|
33
|
44
|
50
|
30
|
50
|
51
|
|
|
2025/03
|
48
|
49
|
61
|
68
|
30
|
23
|
38
|
43
|
66
|
55
|
65
|
40
|
42
|
43
|
23
|
21
|
45
|
29
|
37
|
53
|
71
|
81
|
84
|
97
|
105
|
91
|
74
|
89
|
39
|
21
|
30
|
|
2025/02
|
52
|
24
|
23
|
46
|
72
|
39
|
20
|
33
|
55
|
73
|
112
|
90
|
26
|
78
|
44
|
35
|
51
|
27
|
32
|
34
|
15
|
25
|
14
|
23
|
42
|
26
|
52
|
55
|
|||
|
2025/01
|
103
|
114
|
102
|
110
|
75
|
92
|
115
|
109
|
55
|
27
|
47
|
58
|
78
|
90
|
94
|
82
|
90
|
109
|
98
|
116
|
102
|
81
|
97
|
73
|
57
|
13
|
39
|
53
|
108
|
70
|
71
|
|
2024/12
|
83
|
88
|
76
|
69
|
60
|
41
|
22
|
25
|
52
|
78
|
32
|
26
|
41
|
47
|
50
|
63
|
88
|
84
|
69
|
80
|
94
|
94
|
104
|
111
|
113
|
88
|
76
|
57
|
79
|
117
|
98
|
|
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