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
1 Jan
Fri
2 Jan
Sat
3 Jan
Sun
4 Jan
Mon
5 Jan
Tue
6 Jan
Wed
7 Jan
城北区政府
7454 *
PM2.5
78
PM10
51
O3
1.2
CO
20
SO2
27
NO2
|
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
|
|||
|
2025/01
|
81
|
60
|
71
|
66
|
56
|
70
|
73
|
97
|
91
|
55
|
59
|
51
|
51
|
64
|
67
|
61
|
71
|
59
|
58
|
57
|
77
|
69
|
87
|
88
|
80
|
58
|
59
|
74
|
150
|
59
|
47
|
|
2024/12
|
61
|
58
|
79
|
63
|
72
|
88
|
66
|
70
|
82
|
66
|
92
|
62
|
62
|
101
|
103
|
61
|
71
|
78
|
86
|
103
|
111
|
132
|
129
|
117
|
115
|
104
|
58
|
81
|
85
|
90
|
64
|
|
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
|
*: primary pollution