Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
40
*
PM2.5
59
PM10
47
O3
0.7
CO
4
SO2
21
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
9 Feb
57
Good
Tue
10 Feb
71
Good
Wed
11 Feb
63
Good
Thu
12 Feb
100
Good
Fri
13 Feb
78
Good
Sat
14 Feb
76
Good
Sun
15 Feb
25
Excellent
Air quality in the last 12 months (Yanshan)
|
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
|
|
|
2025/03
|
42
|
39
|
55
|
13
|
14
|
21
|
43
|
43
|
32
|
16
|
34
|
45
|
24
|
15
|
10
|
38
|
33
|
29
|
43
|
49
|
52
|
70
|
79
|
85
|
86
|
66
|
62
|
69
|
11
|
15
|
22
|
|
2025/02
|
13
|
14
|
29
|
59
|
58
|
42
|
29
|
68
|
35
|
52
|
112
|
91
|
74
|
96
|
70
|
26
|
30
|
33
|
19
|
11
|
22
|
14
|
19
|
69
|
69
|
49
|
28
|
46
|
|||
|
1
|
2
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3
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4
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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