Air Quality
Excellent
No health implications.
18
PM2.5
23
PM10
48
O3
0.8
CO
5
SO2
14
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
15 Jul
69
Good
Wed
16 Jul
71
Good
Thu
17 Jul
73
Good
Fri
18 Jul
70
Good
Sat
19 Jul
66
Good
Sun
20 Jul
66
Good
Mon
21 Jul
42
Excellent
Air quality in the last 12 months (Shimian)
|
2025/06
|
12
|
12
|
23
|
28
|
33
|
30
|
29
|
19
|
20
|
26
|
27
|
33
|
35
|
28
|
26
|
29
|
29
|
19
|
10
|
17
|
16
|
18
|
21
|
11
|
14
|
16
|
18
|
24
|
21
|
19
|
|
|
2025/05
|
27
|
29
|
24
|
24
|
16
|
11
|
19
|
22
|
35
|
49
|
47
|
41
|
38
|
28
|
23
|
18
|
18
|
22
|
24
|
27
|
33
|
34
|
20
|
22
|
31
|
35
|
18
|
13
|
21
|
20
|
13
|
|
2025/04
|
24
|
32
|
44
|
40
|
11
|
20
|
30
|
39
|
38
|
42
|
39
|
50
|
53
|
50
|
44
|
47
|
36
|
36
|
36
|
38
|
33
|
34
|
34
|
19
|
26
|
25
|
23
|
21
|
18
|
20
|
|
|
2025/03
|
44
|
38
|
23
|
26
|
17
|
10
|
17
|
20
|
31
|
38
|
37
|
54
|
54
|
38
|
13
|
14
|
12
|
12
|
23
|
28
|
30
|
34
|
33
|
33
|
34
|
36
|
44
|
86
|
44
|
35
|
31
|
|
2025/02
|
22
|
16
|
19
|
31
|
29
|
18
|
16
|
18
|
22
|
25
|
27
|
22
|
33
|
36
|
27
|
37
|
37
|
34
|
26
|
26
|
24
|
18
|
18
|
21
|
18
|
21
|
39
|
31
|
|||
|
2025/01
|
51
|
51
|
54
|
77
|
56
|
62
|
42
|
28
|
25
|
35
|
18
|
35
|
37
|
38
|
40
|
43
|
43
|
42
|
56
|
48
|
58
|
64
|
69
|
39
|
15
|
24
|
43
|
28
|
35
|
44
|
28
|
|
2024/12
|
38
|
39
|
42
|
42
|
27
|
39
|
29
|
22
|
17
|
21
|
27
|
35
|
24
|
24
|
31
|
43
|
56
|
48
|
74
|
66
|
46
|
28
|
32
|
28
|
30
|
31
|
50
|
35
|
50
|
26
|
37
|
|
2024/11
|
14
|
19
|
25
|
15
|
17
|
31
|
26
|
34
|
31
|
19
|
20
|
22
|
21
|
24
|
30
|
21
|
18
|
18
|
19
|
23
|
28
|
31
|
25
|
18
|
14
|
23
|
21
|
23
|
28
|
37
|
|
|
2024/10
|
10
|
16
|
15
|
19
|
16
|
15
|
16
|
24
|
21
|
10
|
17
|
17
|
19
|
25
|
27
|
28
|
15
|
24
|
16
|
18
|
16
|
19
|
23
|
33
|
23
|
13
|
11
|
21
|
34
|
27
|
26
|
|
2024/09
|
15
|
16
|
16
|
17
|
13
|
17
|
18
|
23
|
18
|
13
|
19
|
21
|
22
|
22
|
21
|
12
|
18
|
20
|
26
|
28
|
19
|
21
|
23
|
25
|
21
|
25
|
31
|
36
|
28
|
9
|
|
|
2024/08
|
25
|
29
|
26
|
19
|
19
|
22
|
29
|
26
|
21
|
20
|
47
|
28
|
29
|
37
|
37
|
17
|
23
|
22
|
25
|
28
|
32
|
36
|
39
|
37
|
38
|
32
|
34
|
35
|
37
|
34
|
25
|
|
2024/07
|
17
|
17
|
17
|
18
|
16
|
19
|
25
|
15
|
12
|
14
|
14
|
25
|
22
|
13
|
18
|
13
|
18
|
15
|
22
|
17
|
13
|
17
|
19
|
14
|
15
|
25
|
26
|
16
|
14
|
16
|
19
|
|
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