Air Quality
Excellent
No health implications.
8
PM2.5
18
PM10
57
O3
0.5
CO
5
SO2
4
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 May
57
Good
Mon
19 May
45
Excellent
Tue
20 May
41
Excellent
Wed
21 May
45
Excellent
Thu
22 May
46
Excellent
Fri
23 May
46
Excellent
Sat
24 May
23
Excellent
Air quality in the last 12 months (Wan'an)
|
2025/02
|
24
|
15
|
28
|
42
|
40
|
46
|
44
|
60
|
32
|
39
|
47
|
52
|
60
|
63
|
56
|
35
|
44
|
42
|
38
|
18
|
22
|
17
|
23
|
35
|
48
|
55
|
40
|
37
|
|||
|
2025/01
|
95
|
73
|
78
|
94
|
107
|
99
|
70
|
66
|
60
|
39
|
38
|
51
|
56
|
52
|
65
|
55
|
48
|
51
|
55
|
55
|
57
|
55
|
54
|
69
|
49
|
17
|
44
|
54
|
71
|
57
|
46
|
|
2024/12
|
43
|
49
|
51
|
74
|
77
|
48
|
49
|
66
|
71
|
69
|
44
|
48
|
72
|
63
|
51
|
46
|
50
|
60
|
69
|
68
|
73
|
86
|
82
|
78
|
90
|
85
|
99
|
94
|
71
|
70
|
78
|
|
2024/11
|
32
|
44
|
46
|
55
|
64
|
50
|
45
|
44
|
47
|
52
|
43
|
46
|
50
|
50
|
30
|
26
|
36
|
23
|
33
|
42
|
46
|
39
|
46
|
59
|
53
|
27
|
38
|
34
|
38
|
44
|
|
|
2024/10
|
41
|
39
|
39
|
33
|
37
|
43
|
52
|
40
|
35
|
40
|
51
|
54
|
62
|
76
|
86
|
38
|
38
|
42
|
26
|
27
|
33
|
40
|
36
|
38
|
53
|
53
|
27
|
21
|
46
|
55
|
43
|
|
2024/09
|
40
|
44
|
41
|
36
|
36
|
25
|
20
|
22
|
20
|
29
|
35
|
36
|
40
|
42
|
33
|
31
|
35
|
40
|
36
|
22
|
29
|
36
|
35
|
38
|
32
|
29
|
42
|
40
|
31
|
33
|
|
|
2024/08
|
19
|
24
|
32
|
39
|
26
|
31
|
28
|
32
|
33
|
38
|
34
|
24
|
21
|
22
|
29
|
27
|
18
|
21
|
21
|
26
|
23
|
20
|
27
|
31
|
29
|
27
|
36
|
28
|
26
|
36
|
43
|
|
2024/07
|
21
|
18
|
21
|
17
|
18
|
20
|
16
|
18
|
25
|
26
|
26
|
24
|
21
|
19
|
21
|
18
|
14
|
15
|
17
|
17
|
17
|
21
|
26
|
35
|
35
|
24
|
15
|
13
|
16
|
18
|
15
|
|
2024/06
|
15
|
16
|
25
|
17
|
15
|
25
|
29
|
33
|
28
|
23
|
21
|
20
|
22
|
20
|
16
|
14
|
16
|
25
|
24
|
22
|
23
|
27
|
28
|
19
|
17
|
24
|
25
|
23
|
17
|
20
|
|
|
2024/05
|
16
|
30
|
32
|
28
|
19
|
27
|
43
|
47
|
48
|
51
|
34
|
33
|
69
|
50
|
49
|
54
|
50
|
50
|
35
|
21
|
17
|
19
|
22
|
23
|
18
|
22
|
20
|
26
|
33
|
35
|
17
|
|
2024/04
|
31
|
49
|
31
|
22
|
21
|
20
|
31
|
29
|
37
|
37
|
43
|
52
|
53
|
55
|
54
|
51
|
28
|
32
|
22
|
22
|
22
|
25
|
29
|
41
|
30
|
28
|
35
|
28
|
32
|
21
|
|
|
2024/03
|
42
|
45
|
39
|
41
|
36
|
42
|
51
|
53
|
49
|
52
|
38
|
46
|
56
|
44
|
34
|
36
|
46
|
24
|
36
|
63
|
65
|
51
|
43
|
42
|
36
|
25
|
43
|
30
|
37
|
42
|
29
|
|
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