Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
46
PM2.5
81
*
PM10
77
O3
0.5
CO
7
SO2
26
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
20 Mar
103
Light
Sat
21 Mar
122
Light
Sun
22 Mar
91
Good
Mon
23 Mar
83
Good
Tue
24 Mar
99
Good
Wed
25 Mar
115
Light
Thu
26 Mar
42
Excellent
Air quality in the last 12 months (Yanshan)
|
2026/02
|
218
|
96
|
103
|
163
|
137
|
49
|
50
|
59
|
76
|
98
|
89
|
113
|
126
|
145
|
51
|
79
|
163
|
72
|
68
|
71
|
173
|
71
|
61
|
82
|
75
|
71
|
59
|
63
|
|||
|
2026/01
|
48
|
49
|
134
|
217
|
111
|
186
|
42
|
61
|
100
|
50
|
36
|
76
|
64
|
94
|
149
|
75
|
35
|
37
|
40
|
35
|
55
|
88
|
103
|
154
|
73
|
55
|
96
|
107
|
57
|
58
|
108
|
|
2025/12
|
65
|
32
|
46
|
56
|
64
|
133
|
123
|
39
|
104
|
157
|
69
|
24
|
60
|
92
|
98
|
132
|
81
|
128
|
223
|
62
|
39
|
60
|
67
|
53
|
27
|
58
|
99
|
156
|
119
|
85
|
31
|
|
2025/11
|
93
|
29
|
50
|
90
|
99
|
97
|
73
|
86
|
70
|
74
|
90
|
130
|
46
|
79
|
175
|
100
|
35
|
48
|
60
|
51
|
69
|
108
|
117
|
135
|
30
|
102
|
52
|
103
|
151
|
152
|
|
|
2025/10
|
75
|
29
|
20
|
36
|
22
|
23
|
38
|
30
|
12
|
19
|
25
|
29
|
35
|
48
|
68
|
48
|
39
|
25
|
35
|
33
|
45
|
53
|
64
|
69
|
85
|
65
|
59
|
147
|
114
|
102
|
65
|
|
2025/09
|
26
|
32
|
52
|
50
|
45
|
43
|
54
|
57
|
40
|
47
|
58
|
53
|
57
|
63
|
66
|
55
|
29
|
33
|
24
|
33
|
45
|
28
|
38
|
49
|
55
|
48
|
38
|
52
|
62
|
66
|
|
|
2025/08
|
31
|
27
|
37
|
30
|
35
|
34
|
36
|
30
|
23
|
31
|
38
|
38
|
40
|
60
|
40
|
11
|
16
|
22
|
37
|
34
|
26
|
23
|
29
|
22
|
29
|
32
|
39
|
14
|
25
|
20
|
21
|
|
2025/07
|
24
|
28
|
20
|
36
|
36
|
23
|
25
|
29
|
31
|
51
|
47
|
47
|
41
|
24
|
32
|
31
|
34
|
33
|
28
|
45
|
39
|
27
|
15
|
29
|
38
|
33
|
28
|
36
|
26
|
28
|
26
|
|
2025/06
|
60
|
54
|
37
|
32
|
57
|
69
|
67
|
53
|
67
|
34
|
54
|
69
|
67
|
57
|
31
|
25
|
43
|
44
|
29
|
36
|
44
|
49
|
43
|
49
|
57
|
53
|
53
|
64
|
50
|
26
|
|
|
2025/05
|
55
|
60
|
41
|
45
|
62
|
44
|
58
|
68
|
37
|
30
|
52
|
55
|
57
|
54
|
35
|
71
|
64
|
63
|
83
|
70
|
60
|
73
|
61
|
50
|
48
|
56
|
53
|
60
|
61
|
56
|
58
|
|
2025/04
|
67
|
31
|
52
|
78
|
40
|
68
|
87
|
76
|
51
|
72
|
81
|
167
|
55
|
59
|
51
|
78
|
87
|
56
|
37
|
67
|
66
|
77
|
70
|
50
|
64
|
70
|
51
|
54
|
62
|
73
|
|
|
2025/03
|
149
|
73
|
49
|
52
|
78
|
77
|
80
|
110
|
118
|
104
|
108
|
140
|
96
|
64
|
46
|
36
|
48
|
31
|
56
|
58
|
57
|
66
|
101
|
106
|
69
|
98
|
87
|
51
|
39
|
57
|
76
|
|
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