Air Quality
Excellent
No health implications.
10
PM2.5
27
PM10
103
O3
0.6
CO
7
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
21 Mar
60
Good
Sun
22 Mar
58
Good
Mon
23 Mar
58
Good
Tue
24 Mar
56
Good
Wed
25 Mar
58
Good
Thu
26 Mar
59
Good
Fri
27 Mar
44
Excellent
Air quality in the last 12 months (Yanyuan)
|
2026/02
|
45
|
38
|
38
|
36
|
32
|
38
|
42
|
32
|
35
|
36
|
36
|
37
|
38
|
31
|
33
|
40
|
74
|
47
|
38
|
39
|
39
|
44
|
37
|
42
|
42
|
44
|
43
|
36
|
|||
|
2026/01
|
53
|
39
|
32
|
38
|
41
|
38
|
36
|
40
|
64
|
57
|
43
|
44
|
54
|
52
|
50
|
49
|
59
|
71
|
64
|
65
|
67
|
57
|
63
|
59
|
56
|
58
|
69
|
69
|
47
|
39
|
41
|
|
2025/12
|
61
|
52
|
43
|
45
|
38
|
46
|
41
|
49
|
46
|
46
|
54
|
47
|
51
|
52
|
51
|
57
|
51
|
57
|
66
|
58
|
50
|
46
|
56
|
43
|
33
|
61
|
70
|
66
|
77
|
60
|
59
|
|
2025/11
|
18
|
17
|
17
|
36
|
42
|
32
|
28
|
31
|
30
|
23
|
25
|
27
|
29
|
39
|
34
|
37
|
36
|
37
|
23
|
39
|
30
|
40
|
37
|
39
|
37
|
44
|
44
|
47
|
56
|
61
|
|
|
2025/10
|
22
|
20
|
26
|
24
|
23
|
25
|
23
|
17
|
19
|
23
|
24
|
26
|
25
|
28
|
29
|
33
|
28
|
27
|
24
|
30
|
20
|
24
|
29
|
33
|
32
|
26
|
26
|
34
|
34
|
30
|
32
|
|
2025/09
|
28
|
27
|
24
|
25
|
25
|
23
|
24
|
25
|
25
|
32
|
27
|
26
|
26
|
34
|
35
|
26
|
24
|
22
|
21
|
23
|
25
|
25
|
21
|
23
|
37
|
32
|
31
|
28
|
22
|
26
|
|
|
2025/08
|
33
|
37
|
24
|
33
|
28
|
29
|
33
|
25
|
25
|
27
|
23
|
17
|
23
|
32
|
33
|
27
|
22
|
26
|
22
|
23
|
25
|
16
|
21
|
17
|
21
|
28
|
29
|
29
|
21
|
30
|
24
|
|
2025/07
|
30
|
24
|
24
|
19
|
19
|
19
|
26
|
25
|
19
|
27
|
26
|
21
|
28
|
31
|
31
|
35
|
36
|
40
|
21
|
26
|
22
|
27
|
25
|
24
|
21
|
21
|
27
|
21
|
29
|
32
|
20
|
|
2025/06
|
23
|
21
|
15
|
30
|
33
|
38
|
32
|
26
|
27
|
35
|
38
|
38
|
42
|
42
|
24
|
28
|
20
|
21
|
21
|
18
|
15
|
21
|
30
|
21
|
18
|
29
|
21
|
32
|
25
|
20
|
|
|
2025/05
|
34
|
29
|
28
|
22
|
25
|
23
|
22
|
27
|
30
|
32
|
31
|
36
|
31
|
26
|
27
|
28
|
21
|
31
|
31
|
25
|
27
|
33
|
31
|
27
|
34
|
32
|
21
|
16
|
21
|
23
|
18
|
|
2025/04
|
43
|
52
|
55
|
53
|
30
|
41
|
42
|
50
|
50
|
48
|
36
|
27
|
24
|
33
|
36
|
33
|
30
|
27
|
32
|
23
|
25
|
28
|
23
|
27
|
26
|
48
|
44
|
35
|
40
|
26
|
|
|
2025/03
|
40
|
39
|
28
|
40
|
35
|
27
|
37
|
54
|
52
|
49
|
45
|
49
|
61
|
50
|
34
|
26
|
23
|
17
|
30
|
45
|
58
|
62
|
41
|
30
|
31
|
30
|
33
|
56
|
62
|
60
|
54
|
|
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