Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
51
*
PM2.5
58
PM10
115
O3
0.6
CO
11
SO2
22
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
21 Dec
84
Good
Sun
22 Dec
82
Good
Mon
23 Dec
82
Good
Tue
24 Dec
83
Good
Wed
25 Dec
99
Good
Thu
26 Dec
80
Good
Fri
27 Dec
43
Excellent
Air quality in the last 12 months (Yanshan)
|
2024/11
|
39
|
70
|
86
|
69
|
60
|
67
|
46
|
43
|
45
|
58
|
61
|
53
|
66
|
60
|
45
|
38
|
31
|
14
|
12
|
14
|
26
|
37
|
33
|
50
|
46
|
20
|
27
|
36
|
40
|
59
|
|
|
2024/10
|
30
|
39
|
53
|
43
|
44
|
45
|
56
|
35
|
42
|
42
|
51
|
52
|
54
|
85
|
28
|
27
|
39
|
36
|
13
|
12
|
22
|
19
|
21
|
25
|
31
|
40
|
20
|
35
|
42
|
44
|
45
|
|
2024/09
|
21
|
16
|
16
|
22
|
40
|
30
|
10
|
11
|
16
|
15
|
22
|
33
|
30
|
32
|
35
|
24
|
29
|
31
|
40
|
31
|
24
|
25
|
30
|
38
|
50
|
37
|
29
|
34
|
35
|
33
|
|
|
2024/08
|
9
|
12
|
15
|
18
|
19
|
18
|
18
|
17
|
20
|
19
|
11
|
11
|
9
|
13
|
27
|
22
|
14
|
23
|
32
|
12
|
12
|
11
|
11
|
16
|
17
|
19
|
28
|
28
|
31
|
28
|
24
|
|
2024/07
|
13
|
16
|
15
|
16
|
14
|
11
|
14
|
16
|
16
|
19
|
17
|
18
|
23
|
13
|
11
|
13
|
10
|
10
|
9
|
14
|
16
|
12
|
11
|
16
|
21
|
28
|
34
|
9
|
11
|
8
|
8
|
|
2024/06
|
13
|
11
|
31
|
13
|
8
|
14
|
19
|
26
|
24
|
24
|
10
|
17
|
10
|
15
|
10
|
9
|
10
|
9
|
10
|
15
|
15
|
13
|
16
|
9
|
10
|
12
|
9
|
12
|
13
|
7
|
|
|
2024/05
|
10
|
21
|
18
|
24
|
11
|
22
|
26
|
48
|
43
|
41
|
23
|
30
|
56
|
44
|
41
|
47
|
51
|
49
|
10
|
18
|
17
|
35
|
31
|
27
|
28
|
14
|
14
|
21
|
32
|
31
|
8
|
|
2024/04
|
45
|
61
|
49
|
12
|
11
|
11
|
10
|
17
|
31
|
41
|
56
|
55
|
43
|
48
|
53
|
53
|
28
|
17
|
21
|
14
|
15
|
22
|
30
|
38
|
42
|
20
|
18
|
31
|
44
|
15
|
|
|
2024/03
|
53
|
43
|
46
|
39
|
28
|
55
|
40
|
47
|
53
|
43
|
23
|
38
|
34
|
36
|
22
|
30
|
51
|
14
|
34
|
73
|
73
|
51
|
32
|
40
|
30
|
20
|
60
|
30
|
31
|
53
|
35
|
|
2024/02
|
42
|
15
|
13
|
12
|
20
|
17
|
20
|
32
|
54
|
88
|
68
|
58
|
45
|
40
|
37
|
28
|
58
|
33
|
38
|
42
|
29
|
15
|
18
|
18
|
19
|
17
|
29
|
20
|
24
|
||
|
2024/01
|
116
|
28
|
37
|
51
|
77
|
82
|
67
|
23
|
28
|
63
|
67
|
77
|
78
|
70
|
88
|
125
|
103
|
92
|
27
|
14
|
25
|
26
|
40
|
36
|
37
|
47
|
46
|
64
|
43
|
27
|
34
|
|
2023/12
|
72
|
56
|
17
|
20
|
22
|
37
|
48
|
50
|
78
|
59
|
26
|
17
|
56
|
75
|
33
|
25
|
30
|
14
|
23
|
47
|
43
|
49
|
43
|
49
|
63
|
75
|
78
|
78
|
81
|
118
|
134
|
|
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