Air Quality
Excellent
No health implications.
27
PM2.5
38
PM10
36
O3
0.7
CO
4
SO2
17
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
10 Jan
70
Good
Sat
11 Jan
56
Good
Sun
12 Jan
54
Good
Mon
13 Jan
53
Good
Tue
14 Jan
59
Good
Wed
15 Jan
57
Good
Thu
16 Jan
47
Excellent
Air quality in the last 12 months (Yanshan)
|
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
|
|
|
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
|
|
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