Air Quality
Excellent
No health implications.
6
PM2.5
10
PM10
85
O3
0.5
CO
5
SO2
18
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
21 May
61
Good
Thu
22 May
87
Good
Fri
23 May
48
Excellent
Sat
24 May
62
Good
Sun
25 May
85
Good
Mon
26 May
96
Good
Tue
27 May
21
Excellent
Air quality in the last 12 months (Jiashan)
|
2025/04
|
44
|
67
|
60
|
47
|
62
|
66
|
63
|
64
|
70
|
76
|
70
|
122
|
105
|
86
|
54
|
57
|
62
|
61
|
65
|
59
|
40
|
45
|
53
|
80
|
60
|
42
|
41
|
55
|
42
|
45
|
|
|
2025/03
|
37
|
50
|
30
|
23
|
27
|
35
|
55
|
79
|
38
|
47
|
53
|
29
|
31
|
40
|
23
|
48
|
41
|
51
|
51
|
59
|
54
|
62
|
66
|
60
|
76
|
82
|
65
|
63
|
64
|
47
|
35
|
|
2025/02
|
28
|
58
|
73
|
64
|
44
|
47
|
57
|
36
|
42
|
53
|
31
|
78
|
53
|
38
|
74
|
78
|
74
|
41
|
50
|
38
|
32
|
63
|
79
|
80
|
111
|
106
|
109
|
49
|
|||
|
2025/01
|
73
|
50
|
61
|
49
|
80
|
94
|
75
|
70
|
39
|
45
|
68
|
71
|
93
|
101
|
53
|
56
|
73
|
83
|
101
|
147
|
146
|
64
|
38
|
40
|
28
|
47
|
52
|
43
|
83
|
61
|
41
|
|
2024/12
|
61
|
70
|
86
|
44
|
50
|
112
|
160
|
37
|
47
|
37
|
45
|
64
|
66
|
83
|
57
|
63
|
76
|
87
|
38
|
51
|
84
|
56
|
49
|
50
|
78
|
147
|
55
|
62
|
66
|
74
|
86
|
|
2024/11
|
22
|
52
|
74
|
76
|
36
|
29
|
30
|
30
|
35
|
39
|
47
|
39
|
46
|
36
|
41
|
42
|
24
|
28
|
28
|
30
|
52
|
83
|
25
|
27
|
27
|
29
|
51
|
65
|
51
|
59
|
|
|
2024/10
|
21
|
29
|
23
|
22
|
18
|
13
|
11
|
37
|
36
|
63
|
64
|
57
|
22
|
41
|
53
|
36
|
27
|
35
|
24
|
39
|
29
|
40
|
40
|
29
|
33
|
16
|
15
|
54
|
26
|
31
|
25
|
|
2024/09
|
32
|
38
|
30
|
22
|
24
|
37
|
47
|
32
|
19
|
34
|
17
|
25
|
16
|
22
|
24
|
15
|
16
|
22
|
21
|
17
|
21
|
32
|
29
|
32
|
56
|
24
|
24
|
37
|
35
|
32
|
|
|
2024/08
|
28
|
35
|
40
|
34
|
39
|
33
|
40
|
43
|
39
|
45
|
46
|
39
|
31
|
24
|
25
|
34
|
25
|
20
|
17
|
21
|
18
|
30
|
33
|
32
|
31
|
28
|
40
|
33
|
18
|
23
|
27
|
|
2024/07
|
36
|
19
|
27
|
30
|
36
|
37
|
38
|
36
|
33
|
38
|
27
|
26
|
37
|
42
|
45
|
21
|
31
|
36
|
33
|
32
|
36
|
28
|
20
|
21
|
27
|
25
|
23
|
21
|
19
|
20
|
26
|
|
2024/06
|
33
|
18
|
36
|
56
|
39
|
18
|
20
|
35
|
24
|
24
|
19
|
39
|
49
|
35
|
31
|
27
|
19
|
18
|
21
|
16
|
36
|
32
|
22
|
27
|
23
|
21
|
12
|
19
|
30
|
27
|
|
|
2024/05
|
38
|
34
|
32
|
31
|
30
|
39
|
69
|
46
|
24
|
36
|
54
|
56
|
68
|
48
|
53
|
42
|
48
|
41
|
36
|
33
|
30
|
42
|
27
|
28
|
20
|
32
|
28
|
21
|
26
|
42
|
48
|
|
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