Air Quality
Excellent
No health implications.
23
PM2.5
32
PM10
61
O3
0.7
CO
9
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
17 May
45
Excellent
Mon
18 May
48
Excellent
Tue
19 May
52
Good
Wed
20 May
67
Good
Thu
21 May
65
Good
Fri
22 May
44
Excellent
Sat
23 May
27
Excellent
Air quality in the last 12 months (Laohekou)
|
2026/04
|
51
|
47
|
45
|
76
|
75
|
79
|
77
|
51
|
31
|
51
|
61
|
51
|
42
|
44
|
49
|
38
|
55
|
61
|
75
|
115
|
44
|
22
|
30
|
44
|
44
|
58
|
58
|
56
|
42
|
43
|
|
|
2026/03
|
34
|
37
|
53
|
70
|
89
|
85
|
88
|
74
|
86
|
113
|
114
|
189
|
97
|
97
|
30
|
43
|
69
|
53
|
80
|
78
|
74
|
71
|
92
|
77
|
65
|
78
|
51
|
50
|
59
|
41
|
56
|
|
2026/02
|
99
|
93
|
102
|
139
|
134
|
112
|
88
|
95
|
82
|
93
|
98
|
90
|
95
|
101
|
85
|
37
|
95
|
64
|
70
|
60
|
61
|
101
|
145
|
74
|
48
|
30
|
55
|
57
|
|||
|
2026/01
|
50
|
82
|
117
|
95
|
64
|
44
|
50
|
59
|
66
|
73
|
76
|
77
|
104
|
110
|
84
|
90
|
121
|
88
|
53
|
60
|
68
|
77
|
82
|
99
|
113
|
124
|
118
|
141
|
111
|
105
|
88
|
|
2025/12
|
123
|
127
|
81
|
76
|
86
|
92
|
89
|
83
|
105
|
133
|
160
|
94
|
56
|
61
|
65
|
83
|
105
|
122
|
123
|
100
|
49
|
70
|
65
|
84
|
72
|
74
|
83
|
97
|
95
|
116
|
115
|
|
2025/11
|
42
|
58
|
95
|
119
|
109
|
102
|
27
|
28
|
54
|
73
|
68
|
66
|
73
|
96
|
94
|
76
|
31
|
24
|
31
|
47
|
56
|
63
|
59
|
79
|
58
|
74
|
137
|
93
|
76
|
77
|
|
|
2025/10
|
19
|
9
|
18
|
19
|
16
|
13
|
21
|
25
|
27
|
18
|
20
|
24
|
16
|
28
|
26
|
33
|
16
|
28
|
48
|
38
|
35
|
49
|
59
|
92
|
61
|
39
|
54
|
64
|
102
|
80
|
51
|
|
2025/09
|
20
|
27
|
36
|
27
|
19
|
25
|
32
|
14
|
20
|
27
|
12
|
13
|
22
|
30
|
27
|
32
|
15
|
12
|
11
|
18
|
26
|
19
|
10
|
15
|
25
|
14
|
12
|
15
|
14
|
16
|
|
|
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
|
|
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