Air Quality
Excellent
No health implications.
21
PM2.5
43
PM10
111
O3
0.6
CO
6
SO2
15
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
13 Apr
66
Good
Tue
14 Apr
72
Good
Wed
15 Apr
70
Good
Thu
16 Apr
68
Good
Fri
17 Apr
70
Good
Sat
18 Apr
70
Good
Sun
19 Apr
28
Excellent
Yanyuan Air quality rank
Air quality in the last 12 months (Yanyuan)
|
2026/03
|
40
|
35
|
34
|
29
|
42
|
58
|
64
|
52
|
29
|
28
|
37
|
51
|
34
|
28
|
21
|
31
|
33
|
30
|
33
|
34
|
39
|
41
|
31
|
31
|
33
|
32
|
31
|
36
|
32
|
29
|
27
|
|
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
|
|
|
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