Air Quality
Excellent
No health implications.
31
PM2.5
50
PM10
103
O3
0.6
CO
4
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
26 Apr
59
Good
Mon
27 Apr
54
Good
Tue
28 Apr
39
Excellent
Wed
29 Apr
46
Excellent
Thu
30 Apr
56
Good
Fri
1 May
54
Good
Sat
2 May
32
Excellent
Air quality in the last 12 months (Yimen)
|
2026/03
|
51
|
53
|
53
|
54
|
66
|
75
|
66
|
76
|
42
|
28
|
48
|
46
|
31
|
28
|
28
|
32
|
40
|
35
|
45
|
35
|
54
|
48
|
34
|
44
|
64
|
45
|
39
|
59
|
39
|
33
|
38
|
|
2026/02
|
35
|
35
|
39
|
41
|
38
|
45
|
54
|
49
|
35
|
32
|
32
|
28
|
29
|
38
|
45
|
65
|
115
|
55
|
47
|
33
|
27
|
28
|
41
|
44
|
47
|
41
|
36
|
46
|
|||
|
2026/01
|
50
|
36
|
30
|
24
|
31
|
32
|
29
|
32
|
29
|
31
|
40
|
32
|
46
|
38
|
41
|
36
|
38
|
35
|
34
|
32
|
27
|
33
|
35
|
37
|
31
|
34
|
36
|
38
|
33
|
37
|
42
|
|
2025/12
|
40
|
38
|
46
|
37
|
33
|
31
|
38
|
40
|
30
|
35
|
35
|
34
|
49
|
52
|
35
|
29
|
40
|
34
|
27
|
32
|
39
|
26
|
31
|
31
|
40
|
42
|
34
|
34
|
29
|
30
|
31
|
|
2025/11
|
25
|
10
|
8
|
16
|
15
|
13
|
22
|
21
|
10
|
14
|
20
|
22
|
25
|
27
|
30
|
30
|
32
|
24
|
13
|
26
|
29
|
31
|
24
|
36
|
36
|
46
|
39
|
45
|
44
|
47
|
|
|
2025/10
|
10
|
13
|
12
|
17
|
21
|
21
|
9
|
9
|
14
|
16
|
18
|
21
|
24
|
26
|
25
|
16
|
12
|
15
|
20
|
26
|
17
|
17
|
18
|
33
|
31
|
19
|
20
|
27
|
20
|
24
|
29
|
|
2025/09
|
22
|
21
|
17
|
17
|
17
|
20
|
20
|
21
|
16
|
17
|
14
|
14
|
13
|
11
|
16
|
15
|
17
|
21
|
20
|
20
|
20
|
20
|
13
|
12
|
21
|
11
|
15
|
19
|
10
|
9
|
|
|
2025/08
|
20
|
25
|
22
|
16
|
18
|
22
|
14
|
13
|
13
|
16
|
16
|
15
|
16
|
25
|
29
|
15
|
14
|
20
|
26
|
19
|
12
|
9
|
10
|
13
|
14
|
14
|
13
|
16
|
16
|
21
|
22
|
|
2025/07
|
20
|
14
|
13
|
13
|
14
|
15
|
18
|
13
|
15
|
17
|
15
|
18
|
25
|
25
|
28
|
28
|
25
|
19
|
15
|
22
|
22
|
12
|
11
|
13
|
14
|
17
|
21
|
23
|
31
|
31
|
17
|
|
2025/06
|
11
|
11
|
12
|
16
|
20
|
31
|
28
|
31
|
22
|
31
|
32
|
35
|
41
|
37
|
21
|
22
|
15
|
9
|
10
|
14
|
21
|
12
|
12
|
11
|
14
|
15
|
15
|
17
|
14
|
16
|
|
|
2025/05
|
32
|
25
|
17
|
14
|
20
|
26
|
23
|
25
|
37
|
37
|
16
|
30
|
26
|
25
|
21
|
21
|
26
|
20
|
23
|
25
|
27
|
27
|
50
|
24
|
14
|
13
|
13
|
13
|
12
|
11
|
10
|
|
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
|
|
|
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