Air Quality
Excellent
No health implications.
16
PM2.5
41
PM10
110
O3
0.6
CO
2
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
12 Sep
54
Good
Sun
13 Sep
52
Good
Mon
14 Sep
57
Good
Tue
15 Sep
57
Good
Wed
16 Sep
59
Good
Thu
17 Sep
61
Good
Fri
18 Sep
17
Excellent
Air quality in the last 12 months (Yanshan)
|
2026/08
|
19
|
20
|
19
|
19
|
20
|
26
|
38
|
34
|
33
|
32
|
35
|
33
|
21
|
23
|
25
|
27
|
31
|
38
|
32
|
27
|
32
|
33
|
27
|
23
|
23
|
23
|
29
|
23
|
32
|
24
|
30
|
|
2026/07
|
23
|
33
|
27
|
24
|
22
|
17
|
20
|
19
|
20
|
22
|
28
|
31
|
38
|
29
|
22
|
21
|
20
|
28
|
27
|
23
|
20
|
25
|
27
|
32
|
42
|
40
|
39
|
33
|
30
|
24
|
17
|
|
2026/06
|
41
|
36
|
36
|
34
|
28
|
31
|
25
|
21
|
29
|
33
|
42
|
49
|
37
|
26
|
34
|
37
|
35
|
22
|
23
|
29
|
27
|
27
|
31
|
19
|
22
|
29
|
34
|
43
|
31
|
26
|
|
|
2026/05
|
37
|
50
|
27
|
38
|
40
|
47
|
50
|
28
|
35
|
44
|
35
|
50
|
44
|
26
|
36
|
30
|
22
|
20
|
17
|
22
|
17
|
18
|
26
|
30
|
28
|
33
|
38
|
33
|
34
|
40
|
35
|
|
2026/04
|
37
|
49
|
43
|
38
|
63
|
86
|
24
|
48
|
56
|
61
|
69
|
44
|
34
|
28
|
26
|
33
|
26
|
39
|
52
|
45
|
21
|
21
|
25
|
35
|
47
|
53
|
52
|
27
|
28
|
31
|
|
|
2026/03
|
19
|
18
|
24
|
32
|
39
|
39
|
64
|
38
|
18
|
41
|
44
|
47
|
62
|
74
|
108
|
112
|
93
|
61
|
38
|
36
|
25
|
45
|
36
|
30
|
34
|
58
|
37
|
33
|
36
|
42
|
29
|
|
2026/02
|
52
|
53
|
74
|
122
|
132
|
79
|
52
|
38
|
59
|
46
|
27
|
38
|
45
|
60
|
54
|
37
|
37
|
54
|
71
|
40
|
71
|
91
|
82
|
51
|
40
|
61
|
18
|
20
|
|||
|
2026/01
|
30
|
21
|
39
|
60
|
20
|
41
|
45
|
48
|
52
|
55
|
60
|
80
|
93
|
92
|
93
|
108
|
93
|
81
|
59
|
11
|
22
|
26
|
40
|
57
|
93
|
49
|
36
|
60
|
65
|
42
|
23
|
|
2025/12
|
65
|
69
|
90
|
72
|
65
|
78
|
92
|
72
|
76
|
100
|
86
|
67
|
26
|
41
|
49
|
56
|
55
|
66
|
65
|
65
|
73
|
92
|
81
|
15
|
44
|
55
|
55
|
59
|
65
|
62
|
84
|
|
2025/11
|
35
|
26
|
12
|
11
|
16
|
30
|
33
|
10
|
8
|
10
|
12
|
46
|
28
|
37
|
46
|
52
|
59
|
25
|
26
|
29
|
31
|
42
|
56
|
57
|
50
|
50
|
60
|
71
|
64
|
61
|
|
|
2025/10
|
31
|
28
|
26
|
25
|
23
|
12
|
16
|
29
|
31
|
32
|
38
|
47
|
37
|
44
|
35
|
29
|
44
|
20
|
9
|
8
|
11
|
14
|
26
|
33
|
41
|
55
|
44
|
48
|
56
|
61
|
49
|
|
2025/09
|
25
|
22
|
20
|
23
|
23
|
26
|
30
|
26
|
8
|
14
|
17
|
14
|
26
|
27
|
24
|
24
|
17
|
23
|
35
|
21
|
11
|
10
|
15
|
9
|
7
|
9
|
15
|
27
|
30
|
28
|
|
|
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