Air Quality
Excellent
No health implications.
7
PM2.5
25
PM10
65
O3
0.4
CO
7
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
22 Oct
41
Excellent
Thu
23 Oct
43
Excellent
Fri
24 Oct
47
Excellent
Sat
25 Oct
47
Excellent
Sun
26 Oct
53
Good
Mon
27 Oct
55
Good
Tue
28 Oct
31
Excellent
Air quality in the last 12 months (Tiantai)
|
2025/08
|
37
|
34
|
34
|
32
|
18
|
23
|
30
|
37
|
38
|
42
|
39
|
24
|
15
|
16
|
14
|
20
|
24
|
22
|
23
|
34
|
33
|
25
|
22
|
17
|
18
|
21
|
15
|
15
|
16
|
18
|
21
|
|
2025/07
|
14
|
20
|
24
|
22
|
17
|
13
|
8
|
9
|
15
|
25
|
12
|
19
|
28
|
39
|
42
|
34
|
32
|
21
|
13
|
16
|
11
|
17
|
16
|
18
|
14
|
16
|
18
|
13
|
19
|
11
|
26
|
|
2025/06
|
24
|
30
|
23
|
33
|
36
|
30
|
37
|
39
|
33
|
26
|
16
|
24
|
14
|
16
|
17
|
19
|
35
|
29
|
19
|
16
|
27
|
37
|
22
|
26
|
26
|
35
|
25
|
22
|
20
|
12
|
|
|
2025/05
|
42
|
44
|
53
|
35
|
31
|
63
|
73
|
46
|
23
|
36
|
36
|
35
|
35
|
34
|
33
|
31
|
31
|
40
|
22
|
24
|
19
|
32
|
17
|
37
|
54
|
42
|
34
|
26
|
21
|
42
|
45
|
|
2025/04
|
39
|
48
|
65
|
51
|
49
|
62
|
55
|
55
|
59
|
47
|
51
|
78
|
97
|
89
|
58
|
58
|
59
|
56
|
45
|
63
|
49
|
31
|
30
|
40
|
33
|
39
|
41
|
42
|
41
|
39
|
|
|
2025/03
|
40
|
44
|
50
|
18
|
30
|
30
|
48
|
61
|
59
|
40
|
49
|
51
|
28
|
32
|
13
|
39
|
39
|
48
|
54
|
57
|
48
|
48
|
54
|
60
|
65
|
66
|
62
|
51
|
42
|
44
|
33
|
|
2025/02
|
23
|
31
|
68
|
58
|
43
|
53
|
56
|
34
|
38
|
52
|
42
|
61
|
82
|
51
|
60
|
56
|
64
|
32
|
54
|
38
|
20
|
40
|
54
|
97
|
94
|
87
|
74
|
45
|
|||
|
2025/01
|
67
|
62
|
63
|
59
|
72
|
79
|
83
|
85
|
54
|
38
|
59
|
65
|
67
|
63
|
70
|
48
|
64
|
64
|
58
|
82
|
113
|
79
|
50
|
47
|
43
|
41
|
37
|
38
|
82
|
52
|
39
|
|
2024/12
|
58
|
53
|
69
|
55
|
46
|
45
|
122
|
54
|
44
|
54
|
25
|
69
|
40
|
113
|
64
|
53
|
61
|
70
|
37
|
48
|
73
|
63
|
61
|
53
|
62
|
103
|
76
|
55
|
61
|
64
|
79
|
|
2024/11
|
8
|
21
|
50
|
61
|
40
|
34
|
30
|
36
|
39
|
29
|
32
|
43
|
42
|
39
|
24
|
21
|
15
|
22
|
29
|
37
|
49
|
64
|
56
|
38
|
38
|
29
|
45
|
51
|
49
|
48
|
|
|
2024/10
|
16
|
20
|
23
|
21
|
19
|
12
|
10
|
24
|
40
|
50
|
60
|
48
|
33
|
41
|
41
|
30
|
33
|
36
|
25
|
30
|
51
|
37
|
33
|
30
|
31
|
21
|
15
|
34
|
52
|
39
|
25
|
|
2024/09
|
38
|
40
|
35
|
26
|
24
|
29
|
34
|
24
|
25
|
37
|
19
|
31
|
17
|
22
|
22
|
20
|
17
|
19
|
13
|
18
|
23
|
24
|
21
|
25
|
30
|
34
|
22
|
33
|
34
|
22
|
|
|
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