Air Quality
Excellent
No health implications.
10
PM2.5
16
PM10
36
O3
0.5
CO
3
SO2
20
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
27 Apr
47
Excellent
Sun
28 Apr
36
Excellent
Mon
29 Apr
38
Excellent
Tue
30 Apr
44
Excellent
Wed
1 May
45
Excellent
Thu
2 May
42
Excellent
Air quality in the last 12 months (Siming)
|
2024/02
|
35
|
29
|
24
|
22
|
30
|
26
|
19
|
24
|
46
|
134
|
54
|
44
|
54
|
57
|
46
|
31
|
32
|
51
|
38
|
28
|
17
|
23
|
22
|
26
|
45
|
39
|
31
|
39
|
60
|
||
|
2024/01
|
68
|
57
|
53
|
42
|
62
|
63
|
74
|
61
|
56
|
53
|
76
|
90
|
59
|
40
|
76
|
48
|
45
|
55
|
51
|
44
|
27
|
27
|
20
|
28
|
43
|
59
|
69
|
85
|
63
|
48
|
53
|
|
2023/12
|
45
|
41
|
29
|
29
|
38
|
38
|
44
|
57
|
63
|
67
|
61
|
43
|
28
|
43
|
54
|
23
|
26
|
25
|
34
|
14
|
25
|
52
|
29
|
37
|
51
|
54
|
58
|
53
|
43
|
55
|
74
|
|
2023/11
|
29
|
32
|
42
|
48
|
60
|
55
|
43
|
43
|
52
|
41
|
20
|
21
|
33
|
31
|
28
|
30
|
51
|
61
|
53
|
49
|
43
|
40
|
50
|
63
|
42
|
29
|
52
|
56
|
59
|
62
|
|
|
2023/10
|
34
|
38
|
37
|
54
|
33
|
23
|
26
|
21
|
25
|
22
|
32
|
29
|
28
|
35
|
49
|
47
|
52
|
50
|
76
|
54
|
27
|
26
|
26
|
29
|
40
|
28
|
36
|
28
|
35
|
37
|
31
|
|
2023/09
|
20
|
19
|
11
|
10
|
14
|
16
|
21
|
23
|
28
|
29
|
29
|
25
|
30
|
24
|
21
|
36
|
47
|
18
|
23
|
30
|
35
|
28
|
24
|
24
|
26
|
28
|
32
|
32
|
27
|
27
|
|
|
2023/08
|
29
|
37
|
37
|
43
|
37
|
41
|
45
|
38
|
34
|
27
|
26
|
14
|
23
|
28
|
32
|
38
|
25
|
29
|
28
|
21
|
28
|
22
|
29
|
26
|
24
|
34
|
31
|
27
|
25
|
23
|
22
|
|
2023/07
|
11
|
13
|
17
|
18
|
22
|
28
|
28
|
37
|
40
|
33
|
19
|
14
|
20
|
38
|
32
|
23
|
19
|
16
|
14
|
22
|
21
|
19
|
14
|
19
|
28
|
30
|
23
|
15
|
18
|
17
|
31
|
|
2023/06
|
40
|
39
|
40
|
40
|
28
|
22
|
30
|
33
|
22
|
12
|
29
|
28
|
33
|
45
|
33
|
22
|
16
|
30
|
21
|
25
|
28
|
32
|
15
|
14
|
14
|
19
|
22
|
28
|
15
|
12
|
|
|
2023/05
|
58
|
50
|
47
|
22
|
22
|
24
|
22
|
26
|
37
|
36
|
47
|
50
|
45
|
51
|
64
|
46
|
24
|
34
|
45
|
31
|
23
|
23
|
53
|
62
|
64
|
52
|
47
|
31
|
31
|
31
|
29
|
|
2023/04
|
29
|
40
|
40
|
45
|
38
|
42
|
21
|
55
|
34
|
46
|
49
|
58
|
82
|
69
|
53
|
41
|
51
|
29
|
29
|
44
|
30
|
49
|
63
|
60
|
44
|
31
|
39
|
58
|
50
|
38
|
|
|
2023/03
|
55
|
70
|
55
|
65
|
54
|
60
|
57
|
61
|
66
|
59
|
57
|
66
|
61
|
51
|
56
|
57
|
38
|
44
|
33
|
48
|
51
|
35
|
35
|
45
|
27
|
26
|
37
|
43
|
44
|
42
|
34
|
|
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