Air Quality
Excellent
No health implications.
24
PM2.5
45
PM10
91
O3
0.4
CO
5
SO2
18
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
2 May
110
Light
Sat
3 May
110
Light
Sun
4 May
85
Good
Mon
5 May
52
Good
Tue
6 May
90
Good
Wed
7 May
27
Excellent
Thu
8 May
33
Excellent
Air quality in the last 12 months (Tiantai)
|
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
|
|
|
2024/08
|
23
|
31
|
37
|
44
|
36
|
35
|
39
|
38
|
33
|
34
|
41
|
40
|
39
|
28
|
36
|
40
|
32
|
20
|
15
|
19
|
15
|
24
|
36
|
38
|
37
|
30
|
40
|
26
|
27
|
24
|
30
|
|
2024/07
|
36
|
29
|
24
|
26
|
31
|
25
|
27
|
24
|
30
|
35
|
42
|
43
|
33
|
27
|
24
|
17
|
26
|
28
|
29
|
22
|
24
|
17
|
18
|
18
|
20
|
15
|
18
|
19
|
16
|
15
|
18
|
|
2024/06
|
17
|
19
|
31
|
53
|
40
|
15
|
20
|
38
|
41
|
19
|
17
|
21
|
27
|
32
|
35
|
27
|
13
|
22
|
26
|
29
|
34
|
37
|
41
|
29
|
26
|
23
|
36
|
30
|
25
|
31
|
|
|
2024/05
|
18
|
39
|
37
|
34
|
45
|
38
|
50
|
54
|
33
|
33
|
40
|
37
|
50
|
49
|
54
|
36
|
31
|
40
|
37
|
34
|
27
|
36
|
38
|
41
|
20
|
20
|
25
|
18
|
27
|
38
|
39
|
|
2024/04
|
50
|
28
|
31
|
25
|
30
|
34
|
37
|
24
|
43
|
57
|
52
|
38
|
39
|
23
|
50
|
63
|
28
|
39
|
86
|
62
|
40
|
22
|
28
|
40
|
39
|
48
|
49
|
29
|
40
|
19
|
|
|
2024/03
|
27
|
51
|
55
|
56
|
44
|
30
|
74
|
62
|
65
|
58
|
45
|
66
|
61
|
71
|
58
|
36
|
58
|
57
|
52
|
72
|
69
|
66
|
61
|
55
|
54
|
23
|
40
|
33
|
41
|
51
|
56
|
|
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