Air Quality
Excellent
No health implications.
16
PM2.5
43
PM10
77
O3
0.5
CO
8
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
17 Mar
64
Good
Wed
18 Mar
55
Good
Thu
19 Mar
55
Good
Fri
20 Mar
46
Excellent
Sat
21 Mar
43
Excellent
Sun
22 Mar
54
Good
Mon
23 Mar
34
Excellent
Air quality in the last 12 months (Tiandong)
|
2026/02
|
35
|
48
|
70
|
105
|
91
|
65
|
47
|
19
|
30
|
45
|
26
|
41
|
37
|
53
|
52
|
48
|
42
|
35
|
34
|
40
|
69
|
77
|
56
|
53
|
54
|
46
|
40
|
50
|
|||
|
2026/01
|
35
|
18
|
43
|
63
|
21
|
35
|
46
|
63
|
75
|
84
|
86
|
100
|
87
|
116
|
92
|
97
|
93
|
87
|
69
|
50
|
17
|
23
|
47
|
65
|
77
|
63
|
39
|
41
|
68
|
51
|
26
|
|
2025/12
|
72
|
70
|
62
|
69
|
61
|
63
|
77
|
52
|
64
|
90
|
88
|
79
|
38
|
45
|
54
|
66
|
65
|
56
|
75
|
62
|
45
|
57
|
53
|
19
|
26
|
52
|
60
|
72
|
84
|
87
|
70
|
|
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
|
|
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