Air Quality
Excellent
No health implications.
9
PM2.5
24
PM10
55
O3
0.8
CO
5
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
29 Jan
81
Good
Fri
30 Jan
67
Good
Sat
31 Jan
71
Good
Sun
1 Feb
73
Good
Mon
2 Feb
71
Good
Tue
3 Feb
76
Good
Wed
4 Feb
50
Excellent
Air quality in the last 12 months (Laifeng)
|
2025/12
|
83
|
101
|
74
|
71
|
78
|
68
|
79
|
64
|
77
|
96
|
93
|
126
|
30
|
43
|
53
|
59
|
68
|
75
|
91
|
85
|
36
|
38
|
24
|
39
|
48
|
49
|
62
|
66
|
86
|
116
|
53
|
|
2025/11
|
34
|
32
|
29
|
29
|
31
|
19
|
16
|
15
|
16
|
39
|
44
|
38
|
33
|
42
|
48
|
50
|
43
|
19
|
24
|
30
|
37
|
48
|
57
|
40
|
51
|
51
|
55
|
67
|
77
|
82
|
|
|
2025/10
|
21
|
25
|
26
|
23
|
26
|
29
|
29
|
33
|
34
|
31
|
39
|
44
|
20
|
10
|
15
|
9
|
11
|
10
|
8
|
11
|
13
|
18
|
23
|
30
|
42
|
33
|
27
|
32
|
39
|
35
|
28
|
|
2025/09
|
24
|
23
|
24
|
22
|
26
|
31
|
25
|
27
|
17
|
14
|
15
|
23
|
13
|
12
|
18
|
22
|
24
|
17
|
16
|
13
|
24
|
25
|
18
|
14
|
19
|
16
|
19
|
23
|
29
|
27
|
|
|
2025/08
|
24
|
26
|
25
|
25
|
26
|
24
|
20
|
15
|
20
|
21
|
11
|
8
|
9
|
17
|
14
|
15
|
17
|
22
|
21
|
13
|
14
|
16
|
17
|
19
|
16
|
18
|
22
|
24
|
25
|
26
|
23
|
|
2025/07
|
15
|
17
|
14
|
14
|
15
|
17
|
24
|
24
|
24
|
22
|
24
|
29
|
27
|
21
|
22
|
20
|
20
|
20
|
22
|
24
|
17
|
15
|
10
|
11
|
13
|
17
|
20
|
16
|
18
|
19
|
20
|
|
2025/06
|
11
|
18
|
26
|
32
|
31
|
38
|
28
|
21
|
20
|
27
|
35
|
34
|
31
|
27
|
29
|
31
|
24
|
17
|
10
|
11
|
11
|
17
|
16
|
24
|
15
|
14
|
18
|
17
|
15
|
18
|
|
|
2025/05
|
46
|
62
|
54
|
49
|
35
|
44
|
56
|
26
|
26
|
31
|
40
|
37
|
40
|
51
|
38
|
40
|
40
|
41
|
43
|
41
|
42
|
20
|
38
|
52
|
46
|
38
|
39
|
28
|
35
|
34
|
22
|
|
2025/04
|
47
|
53
|
53
|
55
|
59
|
58
|
53
|
53
|
52
|
43
|
43
|
71
|
152
|
98
|
68
|
64
|
59
|
60
|
38
|
35
|
30
|
37
|
47
|
40
|
49
|
46
|
37
|
37
|
34
|
26
|
|
|
2025/03
|
59
|
69
|
19
|
23
|
30
|
30
|
39
|
47
|
48
|
52
|
59
|
60
|
55
|
42
|
25
|
35
|
42
|
33
|
36
|
47
|
50
|
63
|
56
|
53
|
48
|
58
|
85
|
62
|
41
|
41
|
45
|
|
2025/02
|
38
|
32
|
42
|
47
|
54
|
60
|
53
|
75
|
56
|
44
|
54
|
73
|
62
|
45
|
44
|
49
|
42
|
42
|
48
|
61
|
80
|
55
|
54
|
84
|
70
|
52
|
54
|
63
|
|||
|
2025/01
|
111
|
123
|
135
|
157
|
91
|
74
|
68
|
68
|
64
|
82
|
88
|
79
|
97
|
95
|
66
|
70
|
85
|
117
|
96
|
96
|
110
|
167
|
174
|
88
|
27
|
35
|
53
|
80
|
160
|
73
|
72
|
|
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