Air Quality
Excellent
No health implications.
19
PM2.5
32
PM10
76
O3
0.7
CO
10
SO2
14
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
5 May
73
Good
Mon
6 May
79
Good
Tue
7 May
84
Good
Wed
8 May
86
Good
Thu
9 May
89
Good
Fri
10 May
82
Good
Sat
11 May
79
Good
Air quality in the last 12 months (Laohekou)
|
2024/02
|
74
|
53
|
55
|
73
|
96
|
101
|
95
|
105
|
100
|
136
|
131
|
106
|
103
|
95
|
56
|
61
|
58
|
90
|
306
|
25
|
36
|
42
|
36
|
48
|
71
|
91
|
73
|
67
|
72
|
||
|
2024/01
|
106
|
82
|
55
|
71
|
62
|
93
|
78
|
66
|
92
|
144
|
144
|
124
|
142
|
138
|
64
|
72
|
57
|
67
|
47
|
56
|
73
|
37
|
47
|
46
|
58
|
57
|
71
|
82
|
98
|
115
|
158
|
|
2023/12
|
47
|
55
|
73
|
72
|
77
|
69
|
63
|
65
|
90
|
53
|
28
|
44
|
36
|
23
|
42
|
42
|
46
|
49
|
60
|
120
|
73
|
54
|
74
|
86
|
102
|
124
|
142
|
139
|
155
|
147
|
88
|
|
2023/11
|
44
|
56
|
63
|
39
|
28
|
27
|
38
|
53
|
83
|
50
|
42
|
48
|
62
|
63
|
67
|
124
|
70
|
59
|
59
|
64
|
89
|
87
|
71
|
50
|
50
|
54
|
64
|
74
|
73
|
49
|
|
|
2023/10
|
45
|
27
|
23
|
29
|
42
|
30
|
29
|
28
|
37
|
51
|
48
|
54
|
44
|
41
|
34
|
45
|
65
|
66
|
21
|
28
|
41
|
41
|
67
|
53
|
57
|
45
|
70
|
60
|
43
|
38
|
39
|
|
2023/09
|
40
|
41
|
47
|
52
|
51
|
47
|
49
|
46
|
49
|
56
|
42
|
34
|
33
|
47
|
38
|
38
|
45
|
36
|
28
|
28
|
26
|
31
|
25
|
22
|
20
|
21
|
20
|
24
|
20
|
27
|
|
|
2023/08
|
30
|
27
|
30
|
35
|
36
|
29
|
39
|
41
|
43
|
51
|
48
|
36
|
29
|
37
|
39
|
38
|
43
|
49
|
57
|
47
|
36
|
32
|
43
|
34
|
47
|
32
|
27
|
26
|
33
|
38
|
38
|
|
2023/07
|
35
|
48
|
25
|
31
|
47
|
41
|
29
|
39
|
34
|
34
|
34
|
37
|
28
|
41
|
51
|
46
|
49
|
46
|
43
|
30
|
27
|
34
|
42
|
42
|
30
|
28
|
31
|
31
|
19
|
23
|
30
|
|
2023/06
|
48
|
53
|
30
|
25
|
21
|
33
|
35
|
42
|
48
|
49
|
53
|
39
|
37
|
46
|
49
|
40
|
30
|
29
|
30
|
44
|
50
|
39
|
38
|
45
|
52
|
42
|
41
|
31
|
25
|
32
|
|
|
2023/05
|
81
|
61
|
43
|
21
|
43
|
38
|
37
|
41
|
50
|
31
|
37
|
49
|
56
|
58
|
63
|
54
|
38
|
56
|
59
|
47
|
43
|
26
|
25
|
28
|
43
|
40
|
17
|
18
|
25
|
26
|
36
|
|
2023/04
|
63
|
57
|
32
|
23
|
34
|
87
|
109
|
85
|
74
|
72
|
141
|
309
|
161
|
73
|
66
|
73
|
75
|
76
|
87
|
76
|
64
|
40
|
22
|
22
|
30
|
46
|
44
|
64
|
122
|
83
|
|
|
2023/03
|
98
|
74
|
68
|
73
|
73
|
69
|
71
|
64
|
67
|
57
|
90
|
98
|
85
|
62
|
92
|
52
|
25
|
37
|
49
|
60
|
57
|
69
|
300
|
113
|
103
|
74
|
63
|
70
|
68
|
69
|
68
|
|
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