Air Quality
Excellent
No health implications.
3
PM2.5
7
PM10
38
O3
0.6
CO
7
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 Sep
38
Excellent
Sat
19 Sep
37
Excellent
Sun
20 Sep
40
Excellent
Mon
21 Sep
39
Excellent
Tue
22 Sep
40
Excellent
Wed
23 Sep
30
Excellent
Thu
24 Sep
46
Excellent
Air quality in the last 12 months (Weishan)
|
2026/08
|
16
|
15
|
13
|
18
|
23
|
23
|
27
|
19
|
16
|
19
|
23
|
25
|
25
|
23
|
23
|
18
|
15
|
15
|
17
|
20
|
23
|
22
|
20
|
21
|
22
|
26
|
22
|
22
|
20
|
18
|
21
|
|
2026/07
|
21
|
16
|
16
|
14
|
15
|
13
|
15
|
14
|
16
|
13
|
15
|
20
|
21
|
20
|
17
|
15
|
13
|
13
|
22
|
26
|
26
|
27
|
20
|
27
|
25
|
22
|
17
|
22
|
15
|
13
|
15
|
|
2026/06
|
18
|
17
|
17
|
21
|
25
|
29
|
28
|
25
|
19
|
20
|
21
|
15
|
14
|
16
|
17
|
15
|
16
|
16
|
15
|
15
|
17
|
18
|
16
|
16
|
17
|
17
|
17
|
16
|
17
|
18
|
|
|
2026/05
|
27
|
26
|
23
|
24
|
31
|
31
|
29
|
29
|
30
|
26
|
21
|
25
|
27
|
27
|
26
|
28
|
33
|
35
|
37
|
34
|
36
|
32
|
27
|
28
|
34
|
36
|
34
|
48
|
49
|
23
|
18
|
|
2026/04
|
36
|
36
|
39
|
38
|
39
|
35
|
34
|
38
|
30
|
30
|
37
|
37
|
52
|
60
|
66
|
53
|
43
|
51
|
52
|
41
|
47
|
49
|
48
|
46
|
59
|
50
|
39
|
27
|
24
|
25
|
|
|
2026/03
|
48
|
53
|
48
|
51
|
61
|
80
|
76
|
70
|
55
|
33
|
46
|
62
|
40
|
28
|
27
|
35
|
37
|
34
|
43
|
34
|
39
|
36
|
28
|
31
|
33
|
34
|
40
|
54
|
32
|
32
|
34
|
|
2026/02
|
27
|
26
|
28
|
28
|
26
|
26
|
29
|
30
|
29
|
28
|
22
|
22
|
25
|
24
|
40
|
52
|
78
|
45
|
36
|
30
|
29
|
31
|
36
|
39
|
48
|
54
|
43
|
48
|
|||
|
2026/01
|
38
|
27
|
25
|
21
|
23
|
27
|
26
|
26
|
31
|
31
|
36
|
30
|
32
|
38
|
31
|
27
|
33
|
33
|
32
|
32
|
27
|
26
|
29
|
30
|
29
|
28
|
30
|
33
|
35
|
27
|
29
|
|
2025/12
|
35
|
30
|
32
|
26
|
27
|
26
|
30
|
27
|
29
|
29
|
31
|
31
|
33
|
35
|
32
|
27
|
28
|
27
|
28
|
32
|
29
|
30
|
32
|
28
|
32
|
30
|
30
|
31
|
29
|
26
|
30
|
|
2025/11
|
19
|
19
|
11
|
14
|
12
|
14
|
16
|
20
|
18
|
18
|
17
|
18
|
20
|
24
|
25
|
25
|
25
|
22
|
17
|
17
|
17
|
17
|
21
|
22
|
33
|
39
|
33
|
34
|
35
|
35
|
|
|
2025/10
|
12
|
12
|
15
|
16
|
19
|
19
|
17
|
13
|
15
|
14
|
16
|
16
|
17
|
17
|
20
|
19
|
15
|
14
|
13
|
15
|
18
|
19
|
24
|
22
|
20
|
21
|
22
|
23
|
24
|
25
|
22
|
|
2025/09
|
19
|
17
|
17
|
19
|
20
|
21
|
18
|
18
|
19
|
18
|
17
|
15
|
14
|
14
|
16
|
11
|
15
|
15
|
18
|
18
|
18
|
20
|
17
|
13
|
20
|
18
|
12
|
15
|
13
|
11
|
|
|
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