Air Quality
Excellent
No health implications.
24
PM2.5
43
PM10
63
O3
0.3
CO
3
SO2
16
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
27 Nov
44
Excellent
Fri
28 Nov
51
Good
Sat
29 Nov
47
Excellent
Sun
30 Nov
50
Excellent
Mon
1 Dec
47
Excellent
Tue
2 Dec
49
Excellent
Wed
3 Dec
45
Excellent
Yanshan Air quality rank
Air quality in the last 12 months (Yanshan)
|
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
|
|
|
2025/05
|
37
|
43
|
29
|
18
|
28
|
33
|
39
|
41
|
40
|
21
|
18
|
21
|
28
|
41
|
24
|
19
|
20
|
19
|
18
|
18
|
26
|
27
|
34
|
38
|
24
|
16
|
16
|
15
|
14
|
13
|
12
|
|
2025/04
|
38
|
61
|
67
|
86
|
94
|
31
|
38
|
49
|
52
|
57
|
56
|
58
|
98
|
85
|
60
|
45
|
44
|
35
|
35
|
39
|
32
|
27
|
43
|
50
|
35
|
43
|
55
|
35
|
32
|
34
|
|
|
2025/03
|
35
|
39
|
55
|
63
|
81
|
43
|
46
|
43
|
44
|
35
|
44
|
46
|
44
|
52
|
57
|
27
|
31
|
19
|
32
|
42
|
56
|
80
|
82
|
73
|
61
|
56
|
62
|
83
|
85
|
38
|
26
|
|
2025/02
|
44
|
47
|
20
|
32
|
62
|
46
|
22
|
24
|
22
|
31
|
36
|
53
|
37
|
37
|
47
|
47
|
26
|
22
|
25
|
27
|
22
|
22
|
22
|
13
|
19
|
16
|
24
|
35
|
|||
|
2025/01
|
53
|
57
|
84
|
87
|
65
|
93
|
113
|
98
|
64
|
25
|
38
|
51
|
54
|
70
|
75
|
90
|
92
|
108
|
77
|
64
|
92
|
105
|
55
|
35
|
42
|
23
|
41
|
50
|
65
|
44
|
46
|
|
2024/12
|
44
|
59
|
48
|
46
|
44
|
20
|
23
|
20
|
16
|
26
|
36
|
29
|
34
|
36
|
74
|
72
|
51
|
51
|
70
|
77
|
79
|
78
|
79
|
72
|
80
|
92
|
74
|
44
|
46
|
59
|
41
|
|
2024/11
|
33
|
45
|
47
|
39
|
45
|
53
|
50
|
59
|
52
|
54
|
49
|
42
|
45
|
49
|
41
|
39
|
50
|
53
|
61
|
38
|
42
|
42
|
38
|
45
|
46
|
35
|
19
|
23
|
44
|
49
|
|
|
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