Air Quality
Excellent
No health implications.
2
PM2.5
8
PM10
62
O3
0.5
CO
4
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
29 May
39
Excellent
Fri
30 May
38
Excellent
Sat
31 May
38
Excellent
Sun
1 Jun
39
Excellent
Mon
2 Jun
58
Good
Tue
3 Jun
57
Good
Wed
4 Jun
16
Excellent
Air quality in the last 12 months (Yimen)
|
2025/04
|
44
|
62
|
74
|
76
|
76
|
65
|
69
|
62
|
62
|
61
|
49
|
37
|
57
|
43
|
33
|
20
|
18
|
24
|
27
|
31
|
28
|
26
|
34
|
48
|
51
|
60
|
63
|
62
|
39
|
27
|
|
|
2025/03
|
45
|
39
|
41
|
44
|
51
|
57
|
50
|
52
|
49
|
50
|
46
|
64
|
71
|
67
|
59
|
51
|
47
|
22
|
28
|
46
|
62
|
59
|
54
|
36
|
32
|
35
|
38
|
88
|
108
|
88
|
73
|
|
2025/02
|
49
|
51
|
35
|
40
|
50
|
52
|
42
|
42
|
40
|
34
|
43
|
47
|
55
|
58
|
58
|
66
|
48
|
45
|
48
|
53
|
55
|
52
|
53
|
32
|
30
|
26
|
31
|
43
|
|||
|
2025/01
|
43
|
34
|
44
|
40
|
36
|
48
|
39
|
38
|
38
|
40
|
25
|
39
|
43
|
41
|
73
|
64
|
48
|
41
|
48
|
45
|
44
|
39
|
35
|
25
|
27
|
32
|
40
|
60
|
72
|
39
|
34
|
|
2024/12
|
24
|
24
|
29
|
29
|
25
|
30
|
28
|
30
|
21
|
31
|
34
|
30
|
32
|
33
|
28
|
29
|
27
|
32
|
34
|
35
|
32
|
31
|
30
|
36
|
31
|
37
|
43
|
48
|
36
|
32
|
38
|
|
2024/11
|
34
|
35
|
43
|
45
|
47
|
54
|
29
|
20
|
17
|
27
|
25
|
24
|
22
|
27
|
26
|
31
|
34
|
35
|
33
|
33
|
25
|
20
|
22
|
19
|
28
|
33
|
26
|
21
|
20
|
14
|
|
|
2024/10
|
11
|
19
|
22
|
19
|
19
|
26
|
31
|
36
|
23
|
15
|
21
|
25
|
22
|
28
|
25
|
25
|
19
|
29
|
39
|
33
|
19
|
22
|
19
|
26
|
28
|
34
|
47
|
47
|
47
|
41
|
37
|
|
2024/09
|
22
|
25
|
23
|
23
|
16
|
30
|
32
|
15
|
12
|
14
|
17
|
20
|
28
|
30
|
31
|
21
|
22
|
19
|
28
|
33
|
35
|
19
|
22
|
38
|
38
|
40
|
29
|
19
|
19
|
25
|
|
|
2024/08
|
34
|
30
|
22
|
16
|
19
|
16
|
17
|
14
|
10
|
18
|
23
|
38
|
48
|
40
|
34
|
30
|
31
|
33
|
31
|
34
|
31
|
28
|
14
|
17
|
23
|
19
|
24
|
27
|
25
|
27
|
27
|
|
2024/07
|
11
|
17
|
14
|
11
|
12
|
15
|
12
|
11
|
13
|
12
|
10
|
12
|
15
|
12
|
14
|
16
|
18
|
18
|
18
|
13
|
15
|
16
|
20
|
18
|
24
|
24
|
32
|
29
|
26
|
16
|
18
|
|
2024/06
|
33
|
29
|
26
|
30
|
18
|
17
|
15
|
15
|
14
|
15
|
16
|
17
|
11
|
17
|
19
|
18
|
25
|
24
|
23
|
30
|
23
|
21
|
17
|
17
|
18
|
16
|
13
|
11
|
13
|
11
|
|
|
2024/05
|
50
|
46
|
30
|
50
|
48
|
39
|
32
|
38
|
29
|
23
|
24
|
31
|
26
|
31
|
34
|
19
|
24
|
27
|
32
|
18
|
32
|
36
|
35
|
25
|
28
|
11
|
13
|
17
|
16
|
34
|
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