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
23 Feb
Mon
24 Feb
Tue
25 Feb
Wed
26 Feb
Thu
27 Feb
Fri
28 Feb
Sat
1 Mar
城北区政府
518
PM2.5
52 *
PM10
93
O3
0.7
CO
12
SO2
23
NO2
世纪职校
6950 *
PM2.5
51
PM10
90
O3
0.7
CO
12
SO2
23
NO2
师大城西校区
5942 *
PM2.5
54
PM10
82
O3
0.8
CO
18
SO2
19
NO2
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
|
2024/11
|
58
|
50
|
61
|
55
|
57
|
67
|
56
|
53
|
72
|
67
|
64
|
60
|
59
|
77
|
91
|
52
|
55
|
56
|
74
|
76
|
77
|
73
|
84
|
44
|
37
|
72
|
52
|
54
|
84
|
94
|
|
2024/10
|
27
|
38
|
48
|
48
|
46
|
46
|
52
|
52
|
39
|
41
|
47
|
38
|
43
|
51
|
54
|
29
|
37
|
45
|
46
|
48
|
57
|
39
|
53
|
56
|
55
|
39
|
42
|
46
|
63
|
63
|
45
|
2024/09
|
41
|
40
|
38
|
17
|
17
|
22
|
25
|
46
|
19
|
26
|
27
|
30
|
17
|
29
|
41
|
23
|
28
|
36
|
42
|
21
|
26
|
39
|
33
|
46
|
47
|
38
|
63
|
55
|
25
|
19
|
|
2024/08
|
41
|
25
|
28
|
29
|
38
|
33
|
33
|
36
|
38
|
23
|
35
|
38
|
43
|
20
|
24
|
28
|
31
|
31
|
36
|
41
|
45
|
49
|
44
|
34
|
28
|
36
|
47
|
48
|
28
|
46
|
37
|
2024/07
|
22
|
29
|
27
|
35
|
42
|
52
|
52
|
40
|
49
|
50
|
46
|
45
|
43
|
29
|
45
|
42
|
34
|
35
|
29
|
42
|
168
|
49
|
44
|
63
|
52
|
58
|
48
|
27
|
24
|
33
|
31
|
2024/06
|
49
|
41
|
34
|
32
|
38
|
27
|
40
|
31
|
36
|
38
|
36
|
38
|
33
|
33
|
39
|
24
|
34
|
24
|
48
|
33
|
30
|
32
|
34
|
37
|
44
|
38
|
46
|
32
|
33
|
27
|
|
2024/05
|
43
|
37
|
42
|
36
|
56
|
61
|
59
|
55
|
51
|
48
|
26
|
37
|
42
|
45
|
168
|
78
|
73
|
60
|
65
|
43
|
53
|
55
|
65
|
119
|
42
|
44
|
44
|
34
|
19
|
30
|
41
|
2024/04
|
68
|
74
|
56
|
56
|
38
|
34
|
44
|
52
|
47
|
40
|
47
|
49
|
54
|
123
|
240
|
102
|
63
|
45
|
46
|
30
|
47
|
32
|
35
|
36
|
35
|
54
|
58
|
299
|
61
|
34
|
|
2024/03
|
65
|
69
|
67
|
83
|
63
|
69
|
77
|
87
|
74
|
57
|
47
|
57
|
58
|
60
|
113
|
190
|
75
|
88
|
59
|
56
|
55
|
68
|
80
|
39
|
45
|
45
|
55
|
42
|
42
|
141
|
83
|
2024/02
|
79
|
82
|
60
|
82
|
62
|
59
|
76
|
73
|
67
|
130
|
42
|
46
|
43
|
61
|
46
|
43
|
49
|
375
|
186
|
206
|
189
|
152
|
119
|
108
|
118
|
89
|
86
|
70
|
65
|
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23
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25
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26
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27
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28
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29
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30
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31
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*: primary pollution