Air Quality
Excellent
No health implications.
20
PM2.5
30
PM10
67
O3
0.8
CO
6
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
13 Apr
59
Good
Tue
14 Apr
57
Good
Wed
15 Apr
49
Excellent
Thu
16 Apr
39
Excellent
Fri
17 Apr
34
Excellent
Sat
18 Apr
36
Excellent
Sun
19 Apr
25
Excellent
Yanshan Air quality rank
Air quality in the last 12 months (Yanshan)
|
2026/03
|
19
|
18
|
24
|
32
|
39
|
39
|
64
|
38
|
18
|
41
|
44
|
47
|
62
|
74
|
108
|
112
|
93
|
61
|
38
|
36
|
25
|
45
|
36
|
30
|
34
|
58
|
37
|
33
|
36
|
42
|
29
|
|
2026/02
|
52
|
53
|
74
|
122
|
132
|
79
|
52
|
38
|
59
|
46
|
27
|
38
|
45
|
60
|
54
|
37
|
37
|
54
|
71
|
40
|
71
|
91
|
82
|
51
|
40
|
61
|
18
|
20
|
|||
|
2026/01
|
30
|
21
|
39
|
60
|
20
|
41
|
45
|
48
|
52
|
55
|
60
|
80
|
93
|
92
|
93
|
108
|
93
|
81
|
59
|
11
|
22
|
26
|
40
|
57
|
93
|
49
|
36
|
60
|
65
|
42
|
23
|
|
2025/12
|
65
|
69
|
90
|
72
|
65
|
78
|
92
|
72
|
76
|
100
|
86
|
67
|
26
|
41
|
49
|
56
|
55
|
66
|
65
|
65
|
73
|
92
|
81
|
15
|
44
|
55
|
55
|
59
|
65
|
62
|
84
|
|
2025/11
|
35
|
26
|
12
|
11
|
16
|
30
|
33
|
10
|
8
|
10
|
12
|
46
|
28
|
37
|
46
|
52
|
59
|
25
|
26
|
29
|
31
|
42
|
56
|
57
|
50
|
50
|
60
|
71
|
64
|
61
|
|
|
2025/10
|
31
|
28
|
26
|
25
|
23
|
12
|
16
|
29
|
31
|
32
|
38
|
47
|
37
|
44
|
35
|
29
|
44
|
20
|
9
|
8
|
11
|
14
|
26
|
33
|
41
|
55
|
44
|
48
|
56
|
61
|
49
|
|
2025/09
|
25
|
22
|
20
|
23
|
23
|
26
|
30
|
26
|
8
|
14
|
17
|
14
|
26
|
27
|
24
|
24
|
17
|
23
|
35
|
21
|
11
|
10
|
15
|
9
|
7
|
9
|
15
|
27
|
30
|
28
|
|
|
2025/08
|
23
|
18
|
16
|
19
|
20
|
9
|
11
|
18
|
29
|
24
|
28
|
32
|
34
|
29
|
8
|
19
|
10
|
12
|
9
|
18
|
19
|
16
|
20
|
24
|
18
|
18
|
22
|
19
|
24
|
13
|
22
|
|
2025/07
|
12
|
10
|
13
|
18
|
24
|
23
|
26
|
24
|
27
|
20
|
17
|
26
|
18
|
17
|
18
|
18
|
21
|
25
|
24
|
20
|
11
|
8
|
10
|
18
|
21
|
25
|
24
|
19
|
27
|
26
|
18
|
|
2025/06
|
19
|
14
|
22
|
40
|
40
|
30
|
23
|
19
|
10
|
15
|
26
|
18
|
17
|
10
|
15
|
17
|
10
|
7
|
10
|
14
|
11
|
12
|
15
|
15
|
18
|
17
|
14
|
12
|
9
|
12
|
|
|
2025/05
|
41
|
55
|
42
|
23
|
25
|
27
|
30
|
23
|
18
|
38
|
28
|
32
|
38
|
56
|
38
|
13
|
15
|
8
|
8
|
13
|
15
|
16
|
15
|
38
|
43
|
29
|
27
|
21
|
12
|
20
|
21
|
|
2025/04
|
41
|
54
|
70
|
120
|
132
|
75
|
101
|
124
|
123
|
72
|
48
|
144
|
334
|
141
|
84
|
81
|
83
|
79
|
56
|
21
|
33
|
24
|
43
|
21
|
15
|
25
|
21
|
25
|
43
|
46
|
|
|
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