Air Quality
Excellent
No health implications.
13
PM2.5
22
PM10
74
O3
0.3
CO
11
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
25 Jun
37
Excellent
Fri
26 Jun
38
Excellent
Sat
27 Jun
36
Excellent
Sun
28 Jun
38
Excellent
Mon
29 Jun
39
Excellent
Tue
30 Jun
37
Excellent
Wed
1 Jul
29
Excellent
Air quality in the last 12 months (Yanshan)
|
2026/05
|
29
|
26
|
23
|
30
|
31
|
37
|
34
|
41
|
41
|
17
|
18
|
21
|
24
|
27
|
31
|
39
|
31
|
25
|
25
|
25
|
23
|
22
|
25
|
22
|
25
|
35
|
37
|
36
|
26
|
23
|
30
|
|
2026/04
|
42
|
49
|
53
|
51
|
62
|
59
|
58
|
57
|
41
|
41
|
41
|
48
|
56
|
77
|
105
|
96
|
79
|
63
|
50
|
55
|
59
|
64
|
45
|
42
|
28
|
35
|
40
|
40
|
27
|
25
|
|
|
2026/03
|
49
|
59
|
58
|
44
|
47
|
30
|
37
|
23
|
16
|
24
|
39
|
47
|
46
|
55
|
30
|
32
|
46
|
38
|
48
|
55
|
56
|
29
|
28
|
47
|
59
|
68
|
85
|
107
|
69
|
48
|
51
|
|
2026/02
|
23
|
19
|
24
|
37
|
39
|
44
|
47
|
24
|
14
|
24
|
22
|
25
|
26
|
31
|
34
|
44
|
54
|
36
|
17
|
18
|
26
|
34
|
32
|
41
|
33
|
26
|
30
|
38
|
|||
|
2026/01
|
54
|
20
|
15
|
18
|
18
|
18
|
38
|
60
|
41
|
43
|
66
|
70
|
86
|
72
|
80
|
50
|
48
|
46
|
51
|
46
|
43
|
26
|
23
|
21
|
29
|
31
|
30
|
35
|
40
|
40
|
42
|
|
2025/12
|
51
|
60
|
67
|
56
|
46
|
38
|
40
|
47
|
43
|
44
|
46
|
46
|
44
|
34
|
31
|
38
|
41
|
25
|
26
|
44
|
49
|
39
|
39
|
37
|
33
|
36
|
35
|
37
|
34
|
40
|
38
|
|
2025/11
|
17
|
12
|
11
|
15
|
14
|
16
|
17
|
13
|
11
|
10
|
18
|
28
|
31
|
29
|
30
|
36
|
32
|
15
|
18
|
35
|
43
|
44
|
36
|
41
|
47
|
52
|
48
|
48
|
48
|
48
|
|
|
2025/10
|
11
|
14
|
18
|
18
|
22
|
18
|
10
|
13
|
15
|
21
|
28
|
32
|
33
|
25
|
14
|
12
|
18
|
23
|
28
|
27
|
17
|
17
|
23
|
26
|
14
|
16
|
19
|
20
|
25
|
24
|
29
|
|
2025/09
|
17
|
17
|
18
|
22
|
25
|
24
|
28
|
28
|
19
|
15
|
14
|
13
|
13
|
19
|
21
|
18
|
19
|
14
|
16
|
20
|
25
|
29
|
18
|
15
|
17
|
10
|
12
|
21
|
12
|
10
|
|
|
2025/08
|
21
|
31
|
23
|
22
|
28
|
34
|
16
|
16
|
17
|
21
|
19
|
23
|
27
|
42
|
27
|
13
|
13
|
26
|
19
|
16
|
15
|
15
|
15
|
18
|
21
|
13
|
15
|
13
|
16
|
18
|
19
|
|
2025/07
|
13
|
12
|
12
|
12
|
16
|
22
|
22
|
22
|
24
|
19
|
21
|
25
|
23
|
25
|
18
|
19
|
17
|
28
|
21
|
25
|
21
|
15
|
11
|
10
|
11
|
13
|
18
|
28
|
33
|
28
|
20
|
|
2025/06
|
19
|
23
|
20
|
21
|
19
|
29
|
29
|
24
|
24
|
29
|
39
|
25
|
29
|
30
|
21
|
17
|
17
|
15
|
16
|
15
|
17
|
13
|
13
|
13
|
13
|
14
|
13
|
20
|
12
|
13
|
|
|
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