Some pollutants may slightly affect very few hypersensitive individuals.
PM2.5
PM10
O3
CO
SO2
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Only very few hypersensitive people should reduce outdoor activities.
Today
12 Feb
Fri
13 Feb
Sat
14 Feb
Sun
15 Feb
Mon
16 Feb
Tue
17 Feb
Wed
18 Feb
城北区政府
7857 *
PM2.5
96
PM10
33
O3
3.1
CO
18
SO2
30
NO2
世纪职校
5438 *
PM2.5
56
PM10
42
O3
1.1
CO
14
SO2
14
NO2
海晏路105号
6950 *
PM2.5
78
PM10
17
O3
1.3
CO
7
SO2
33
NO2
|
2026/01
|
78
|
79
|
94
|
106
|
88
|
81
|
59
|
55
|
54
|
43
|
49
|
46
|
50
|
108
|
58
|
64
|
54
|
77
|
60
|
60
|
58
|
69
|
69
|
70
|
236
|
177
|
143
|
115
|
107
|
93
|
95
|
|
2025/12
|
65
|
61
|
59
|
68
|
74
|
69
|
65
|
71
|
84
|
77
|
85
|
121
|
56
|
66
|
72
|
68
|
76
|
66
|
59
|
46
|
82
|
89
|
71
|
70
|
65
|
82
|
70
|
67
|
59
|
72
|
84
|
|
2025/11
|
62
|
55
|
57
|
67
|
67
|
35
|
45
|
82
|
81
|
58
|
65
|
58
|
62
|
56
|
63
|
66
|
50
|
52
|
66
|
55
|
66
|
70
|
67
|
63
|
55
|
62
|
40
|
50
|
54
|
58
|
|
|
2025/10
|
26
|
44
|
57
|
62
|
48
|
40
|
23
|
21
|
27
|
22
|
29
|
24
|
40
|
49
|
42
|
61
|
40
|
68
|
53
|
56
|
57
|
48
|
28
|
34
|
42
|
33
|
47
|
51
|
57
|
58
|
57
|
|
2025/09
|
46
|
21
|
41
|
48
|
33
|
63
|
61
|
38
|
54
|
54
|
50
|
34
|
54
|
81
|
88
|
109
|
34
|
30
|
40
|
40
|
34
|
39
|
36
|
52
|
36
|
48
|
39
|
40
|
45
|
44
|
|
|
2025/08
|
55
|
40
|
41
|
19
|
21
|
28
|
36
|
20
|
30
|
31
|
34
|
29
|
36
|
34
|
34
|
39
|
45
|
43
|
33
|
57
|
17
|
23
|
27
|
34
|
39
|
28
|
16
|
18
|
23
|
32
|
40
|
|
2025/07
|
33
|
34
|
38
|
22
|
29
|
34
|
44
|
42
|
43
|
44
|
42
|
38
|
38
|
41
|
56
|
27
|
23
|
36
|
35
|
21
|
30
|
37
|
46
|
35
|
28
|
33
|
41
|
32
|
33
|
37
|
84
|
|
2025/06
|
36
|
39
|
38
|
33
|
42
|
47
|
45
|
40
|
33
|
34
|
34
|
40
|
39
|
34
|
38
|
35
|
50
|
49
|
35
|
35
|
31
|
30
|
32
|
24
|
32
|
34
|
29
|
34
|
23
|
34
|
|
|
2025/05
|
43
|
81
|
188
|
76
|
67
|
122
|
124
|
57
|
45
|
36
|
46
|
47
|
56
|
33
|
41
|
43
|
68
|
38
|
47
|
46
|
48
|
54
|
50
|
32
|
32
|
47
|
40
|
44
|
76
|
63
|
71
|
|
2025/04
|
119
|
112
|
103
|
144
|
104
|
72
|
102
|
72
|
74
|
55
|
70
|
36
|
44
|
52
|
62
|
105
|
79
|
94
|
103
|
110
|
77
|
77
|
44
|
52
|
55
|
45
|
32
|
46
|
44
|
41
|
|
|
2025/03
|
76
|
57
|
66
|
66
|
56
|
74
|
73
|
56
|
56
|
59
|
207
|
144
|
100
|
49
|
59
|
49
|
49
|
47
|
55
|
61
|
61
|
69
|
58
|
55
|
46
|
367
|
106
|
60
|
75
|
124
|
91
|
|
2025/02
|
64
|
56
|
47
|
52
|
42
|
53
|
51
|
60
|
65
|
55
|
73
|
72
|
72
|
62
|
51
|
55
|
56
|
55
|
71
|
65
|
72
|
70
|
60
|
57
|
53
|
50
|
60
|
55
|
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30
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31
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*: primary pollution