Air Quality
Excellent
No health implications.
5
PM2.5
12
PM10
34
O3
0.5
CO
6
SO2
4
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
24 Aug
40
Excellent
Tue
25 Aug
39
Excellent
Wed
26 Aug
52
Good
Thu
27 Aug
53
Good
Fri
28 Aug
44
Excellent
Sat
29 Aug
46
Excellent
Sun
30 Aug
17
Excellent
Air quality in the last 12 months (Tiantai)
|
2026/07
|
21
|
20
|
27
|
24
|
20
|
26
|
26
|
26
|
28
|
21
|
20
|
17
|
24
|
21
|
23
|
29
|
32
|
32
|
31
|
21
|
27
|
29
|
38
|
32
|
15
|
17
|
14
|
12
|
18
|
30
|
27
|
|
2026/06
|
40
|
62
|
49
|
36
|
39
|
29
|
34
|
29
|
26
|
36
|
38
|
36
|
30
|
28
|
32
|
25
|
33
|
35
|
20
|
26
|
31
|
32
|
26
|
31
|
22
|
30
|
42
|
38
|
26
|
21
|
|
|
2026/05
|
39
|
37
|
37
|
34
|
40
|
39
|
42
|
32
|
29
|
37
|
37
|
35
|
37
|
24
|
25
|
27
|
28
|
32
|
30
|
36
|
39
|
51
|
31
|
40
|
34
|
31
|
40
|
38
|
52
|
43
|
43
|
|
2026/04
|
34
|
39
|
39
|
33
|
46
|
47
|
40
|
36
|
38
|
47
|
46
|
33
|
55
|
38
|
48
|
25
|
50
|
45
|
53
|
58
|
29
|
26
|
19
|
37
|
50
|
57
|
50
|
57
|
29
|
32
|
|
|
2026/03
|
26
|
18
|
29
|
28
|
25
|
46
|
48
|
41
|
36
|
41
|
39
|
41
|
53
|
46
|
48
|
40
|
43
|
49
|
32
|
60
|
31
|
31
|
34
|
28
|
45
|
47
|
32
|
42
|
46
|
33
|
31
|
|
2026/02
|
41
|
46
|
71
|
51
|
62
|
49
|
23
|
51
|
34
|
33
|
58
|
77
|
64
|
45
|
37
|
24
|
45
|
58
|
57
|
42
|
29
|
47
|
108
|
31
|
22
|
26
|
11
|
24
|
|||
|
2026/01
|
24
|
50
|
70
|
69
|
71
|
83
|
55
|
57
|
69
|
62
|
75
|
68
|
64
|
59
|
56
|
71
|
78
|
64
|
35
|
14
|
38
|
55
|
61
|
84
|
86
|
58
|
28
|
60
|
43
|
36
|
13
|
|
2025/12
|
81
|
68
|
55
|
51
|
54
|
57
|
60
|
75
|
48
|
50
|
60
|
44
|
38
|
47
|
59
|
55
|
79
|
97
|
57
|
80
|
51
|
39
|
52
|
48
|
43
|
42
|
47
|
53
|
53
|
82
|
35
|
|
2025/11
|
47
|
58
|
34
|
39
|
36
|
39
|
32
|
41
|
18
|
41
|
26
|
23
|
25
|
47
|
51
|
49
|
37
|
30
|
41
|
57
|
61
|
72
|
60
|
59
|
84
|
91
|
92
|
129
|
84
|
72
|
|
|
2025/10
|
27
|
24
|
21
|
29
|
26
|
35
|
42
|
27
|
23
|
28
|
35
|
47
|
42
|
37
|
31
|
29
|
24
|
25
|
20
|
23
|
26
|
28
|
31
|
37
|
41
|
43
|
45
|
32
|
30
|
33
|
18
|
|
2025/09
|
21
|
18
|
19
|
27
|
24
|
17
|
27
|
20
|
26
|
17
|
27
|
27
|
25
|
17
|
28
|
19
|
19
|
25
|
15
|
23
|
20
|
26
|
19
|
14
|
18
|
22
|
31
|
27
|
38
|
30
|
|
|
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
|
|
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