Air Quality
Excellent
No health implications.
11
PM2.5
20
PM10
35
O3
0.6
CO
7
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
27 Nov
36
Excellent
Thu
28 Nov
36
Excellent
Fri
29 Nov
33
Excellent
Sat
30 Nov
34
Excellent
Sun
1 Dec
34
Excellent
Mon
2 Dec
39
Excellent
Tue
3 Dec
33
Excellent
Air quality in the last 12 months (Yanshan)
|
2024/10
|
12
|
16
|
28
|
26
|
31
|
36
|
43
|
59
|
43
|
38
|
42
|
48
|
60
|
38
|
30
|
13
|
15
|
27
|
33
|
24
|
30
|
29
|
25
|
42
|
42
|
34
|
43
|
49
|
43
|
30
|
32
|
|
2024/09
|
29
|
17
|
29
|
22
|
25
|
34
|
29
|
11
|
9
|
11
|
17
|
19
|
22
|
24
|
29
|
25
|
18
|
22
|
25
|
35
|
30
|
15
|
27
|
34
|
38
|
44
|
44
|
36
|
24
|
18
|
|
|
2024/08
|
12
|
14
|
12
|
12
|
12
|
15
|
16
|
16
|
14
|
19
|
23
|
34
|
29
|
37
|
45
|
33
|
35
|
46
|
29
|
32
|
20
|
12
|
11
|
17
|
14
|
13
|
15
|
23
|
29
|
25
|
22
|
|
2024/07
|
13
|
16
|
10
|
14
|
16
|
16
|
14
|
16
|
16
|
14
|
11
|
15
|
16
|
13
|
15
|
15
|
13
|
12
|
10
|
11
|
12
|
16
|
23
|
16
|
16
|
23
|
27
|
21
|
12
|
10
|
16
|
|
2024/06
|
22
|
23
|
20
|
22
|
11
|
11
|
12
|
12
|
12
|
14
|
15
|
17
|
15
|
15
|
16
|
15
|
23
|
26
|
28
|
26
|
20
|
22
|
21
|
17
|
23
|
11
|
10
|
14
|
13
|
14
|
|
|
2024/05
|
71
|
50
|
32
|
48
|
42
|
33
|
36
|
34
|
12
|
17
|
26
|
32
|
23
|
22
|
24
|
14
|
28
|
28
|
22
|
23
|
32
|
30
|
31
|
27
|
28
|
12
|
15
|
15
|
18
|
23
|
17
|
|
2024/04
|
60
|
56
|
69
|
80
|
84
|
91
|
79
|
53
|
36
|
47
|
52
|
61
|
71
|
60
|
88
|
101
|
89
|
53
|
59
|
44
|
45
|
54
|
50
|
49
|
45
|
51
|
58
|
65
|
71
|
59
|
|
|
2024/03
|
22
|
24
|
36
|
60
|
39
|
48
|
95
|
67
|
46
|
30
|
32
|
45
|
55
|
53
|
59
|
70
|
98
|
84
|
41
|
46
|
42
|
43
|
39
|
49
|
55
|
62
|
63
|
63
|
42
|
67
|
70
|
|
2024/02
|
31
|
36
|
49
|
47
|
47
|
51
|
54
|
50
|
38
|
70
|
63
|
39
|
50
|
45
|
54
|
42
|
47
|
44
|
44
|
47
|
49
|
63
|
63
|
38
|
26
|
35
|
30
|
35
|
27
|
||
|
2024/01
|
74
|
45
|
47
|
35
|
32
|
39
|
34
|
37
|
43
|
47
|
22
|
21
|
26
|
28
|
27
|
23
|
21
|
24
|
29
|
37
|
36
|
16
|
40
|
33
|
33
|
27
|
28
|
26
|
24
|
23
|
27
|
|
2023/12
|
52
|
19
|
16
|
18
|
23
|
29
|
40
|
35
|
30
|
31
|
35
|
37
|
31
|
36
|
33
|
46
|
34
|
24
|
25
|
36
|
58
|
63
|
65
|
83
|
84
|
70
|
76
|
75
|
66
|
69
|
60
|
|
2023/11
|
37
|
34
|
40
|
38
|
33
|
43
|
18
|
16
|
20
|
25
|
30
|
30
|
19
|
22
|
15
|
20
|
44
|
43
|
44
|
59
|
41
|
54
|
58
|
57
|
54
|
65
|
68
|
56
|
57
|
69
|
|
|
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