Air Quality
Excellent
No health implications.
18
PM2.5
26
PM10
98
O3
0.6
CO
8
SO2
13
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
9 Jun
52
Good
Tue
10 Jun
56
Good
Wed
11 Jun
63
Good
Thu
12 Jun
64
Good
Fri
13 Jun
66
Good
Sat
14 Jun
61
Good
Sun
15 Jun
29
Excellent
Air quality in the last 12 months (Yanyuan)
|
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
|
|
2025/02
|
40
|
35
|
23
|
38
|
49
|
36
|
29
|
30
|
32
|
34
|
28
|
30
|
37
|
38
|
26
|
38
|
30
|
36
|
35
|
29
|
33
|
34
|
32
|
37
|
33
|
30
|
31
|
33
|
|||
|
2025/01
|
54
|
49
|
53
|
54
|
50
|
56
|
45
|
31
|
35
|
38
|
28
|
43
|
46
|
42
|
44
|
60
|
51
|
55
|
53
|
58
|
56
|
51
|
53
|
48
|
32
|
26
|
38
|
45
|
34
|
42
|
34
|
|
2024/12
|
43
|
42
|
41
|
46
|
42
|
41
|
39
|
40
|
37
|
39
|
44
|
51
|
41
|
36
|
40
|
53
|
53
|
49
|
43
|
45
|
47
|
39
|
43
|
50
|
49
|
53
|
53
|
57
|
56
|
51
|
51
|
|
2024/11
|
37
|
27
|
36
|
31
|
25
|
39
|
25
|
17
|
24
|
32
|
32
|
33
|
31
|
35
|
42
|
45
|
40
|
35
|
38
|
36
|
40
|
29
|
25
|
31
|
33
|
32
|
33
|
33
|
33
|
37
|
|
|
2024/10
|
13
|
22
|
26
|
33
|
24
|
18
|
15
|
20
|
25
|
23
|
27
|
30
|
28
|
24
|
24
|
23
|
27
|
35
|
39
|
34
|
26
|
27
|
31
|
28
|
37
|
28
|
17
|
39
|
45
|
36
|
35
|
|
2024/09
|
24
|
21
|
24
|
24
|
17
|
20
|
26
|
27
|
27
|
17
|
20
|
21
|
29
|
32
|
35
|
19
|
19
|
27
|
36
|
36
|
38
|
31
|
30
|
32
|
28
|
29
|
39
|
26
|
29
|
24
|
|
|
2024/08
|
30
|
42
|
38
|
28
|
28
|
29
|
25
|
26
|
26
|
17
|
32
|
33
|
33
|
41
|
42
|
33
|
31
|
25
|
31
|
28
|
34
|
42
|
41
|
37
|
37
|
34
|
31
|
41
|
40
|
44
|
27
|
|
2024/07
|
27
|
27
|
26
|
20
|
21
|
24
|
22
|
22
|
22
|
28
|
19
|
22
|
27
|
25
|
24
|
26
|
25
|
26
|
24
|
21
|
27
|
31
|
34
|
29
|
22
|
32
|
36
|
33
|
20
|
12
|
27
|
|
2024/06
|
33
|
36
|
27
|
25
|
23
|
31
|
25
|
22
|
19
|
23
|
25
|
20
|
26
|
23
|
23
|
34
|
20
|
22
|
23
|
22
|
33
|
29
|
25
|
17
|
24
|
37
|
31
|
24
|
28
|
31
|
|
|
2024/05
|
37
|
40
|
38
|
34
|
46
|
46
|
44
|
38
|
37
|
36
|
29
|
19
|
26
|
32
|
22
|
32
|
35
|
34
|
29
|
25
|
30
|
33
|
28
|
36
|
33
|
23
|
22
|
31
|
26
|
23
|
24
|
|
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