Air Quality
Excellent
No health implications.
22
PM2.5
38
PM10
27
O3
0.7
CO
10
SO2
20
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
26 Oct
100
Good
Mon
27 Oct
98
Good
Tue
28 Oct
99
Good
Wed
29 Oct
104
Light
Thu
30 Oct
102
Light
Fri
31 Oct
98
Good
Sat
1 Nov
50
Excellent
Air quality in the last 12 months (Laohekou)
|
2025/08
|
32
|
33
|
34
|
42
|
40
|
38
|
28
|
29
|
20
|
16
|
19
|
23
|
15
|
22
|
24
|
18
|
23
|
24
|
30
|
21
|
25
|
28
|
26
|
27
|
26
|
30
|
33
|
29
|
20
|
20
|
15
|
|
2025/07
|
21
|
22
|
18
|
23
|
22
|
26
|
20
|
31
|
29
|
27
|
45
|
46
|
35
|
28
|
28
|
35
|
25
|
29
|
32
|
30
|
28
|
29
|
14
|
19
|
25
|
28
|
28
|
24
|
26
|
27
|
31
|
|
2025/06
|
28
|
29
|
39
|
39
|
39
|
39
|
33
|
24
|
31
|
41
|
40
|
34
|
39
|
34
|
44
|
52
|
43
|
24
|
11
|
20
|
26
|
32
|
30
|
28
|
22
|
14
|
24
|
27
|
21
|
25
|
|
|
2025/05
|
80
|
79
|
62
|
41
|
57
|
299
|
176
|
56
|
67
|
41
|
40
|
55
|
58
|
43
|
54
|
49
|
82
|
139
|
88
|
72
|
62
|
55
|
59
|
66
|
62
|
53
|
52
|
48
|
46
|
35
|
19
|
|
2025/04
|
62
|
63
|
60
|
67
|
79
|
75
|
68
|
60
|
64
|
53
|
52
|
236
|
142
|
76
|
58
|
69
|
68
|
73
|
57
|
53
|
46
|
103
|
101
|
75
|
69
|
62
|
59
|
49
|
52
|
57
|
|
|
2025/03
|
85
|
24
|
27
|
30
|
41
|
55
|
65
|
74
|
65
|
70
|
77
|
88
|
82
|
47
|
42
|
41
|
37
|
40
|
39
|
37
|
42
|
51
|
56
|
59
|
48
|
55
|
114
|
74
|
67
|
66
|
62
|
|
2025/02
|
72
|
69
|
61
|
50
|
49
|
40
|
94
|
51
|
58
|
69
|
84
|
79
|
73
|
75
|
62
|
65
|
75
|
62
|
83
|
81
|
82
|
82
|
90
|
94
|
66
|
74
|
86
|
97
|
|||
|
2025/01
|
109
|
129
|
123
|
129
|
58
|
67
|
63
|
56
|
59
|
62
|
65
|
72
|
85
|
83
|
64
|
56
|
67
|
84
|
86
|
91
|
125
|
184
|
118
|
55
|
46
|
51
|
63
|
90
|
187
|
144
|
110
|
|
2024/12
|
55
|
61
|
63
|
57
|
49
|
51
|
53
|
63
|
63
|
67
|
63
|
99
|
58
|
45
|
48
|
64
|
77
|
76
|
51
|
60
|
66
|
58
|
56
|
65
|
68
|
98
|
134
|
42
|
74
|
73
|
72
|
|
2024/11
|
58
|
46
|
48
|
49
|
56
|
64
|
68
|
74
|
57
|
60
|
73
|
78
|
58
|
57
|
48
|
20
|
15
|
28
|
29
|
22
|
31
|
45
|
74
|
62
|
31
|
35
|
45
|
46
|
40
|
51
|
|
|
2024/10
|
35
|
51
|
51
|
48
|
62
|
45
|
41
|
60
|
58
|
51
|
67
|
66
|
56
|
54
|
54
|
86
|
49
|
22
|
29
|
32
|
32
|
23
|
32
|
50
|
55
|
55
|
39
|
56
|
68
|
65
|
55
|
|
2024/09
|
35
|
47
|
38
|
45
|
47
|
31
|
42
|
47
|
46
|
49
|
31
|
32
|
30
|
44
|
33
|
41
|
32
|
33
|
22
|
26
|
25
|
31
|
45
|
56
|
58
|
59
|
61
|
57
|
50
|
13
|
|
|
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