Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
36
*
PM2.5
46
PM10
35
O3
0.6
CO
8
SO2
14
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
7 Jan
34
Excellent
Thu
8 Jan
40
Excellent
Fri
9 Jan
41
Excellent
Sat
10 Jan
39
Excellent
Sun
11 Jan
46
Excellent
Mon
12 Jan
44
Excellent
Tue
13 Jan
47
Excellent
Yanshan Air quality rank
Air quality in the last 12 months (Yanshan)
|
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
|
|
|
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
|
|
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