Air Quality
Excellent
No health implications.
22
PM2.5
33
PM10
16
O3
0.6
CO
6
SO2
15
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
26 Apr
48
Excellent
Sat
27 Apr
50
Excellent
Sun
28 Apr
53
Good
Mon
29 Apr
44
Excellent
Tue
30 Apr
39
Excellent
Wed
1 May
46
Excellent
Air quality in the last 12 months (Laifeng)
|
2024/02
|
39
|
23
|
25
|
28
|
42
|
45
|
55
|
71
|
78
|
163
|
78
|
63
|
66
|
73
|
56
|
38
|
47
|
59
|
76
|
37
|
18
|
26
|
34
|
25
|
35
|
54
|
63
|
65
|
70
|
||
|
2024/01
|
60
|
52
|
38
|
54
|
84
|
93
|
76
|
69
|
63
|
63
|
67
|
77
|
84
|
98
|
88
|
37
|
28
|
24
|
24
|
25
|
46
|
37
|
46
|
53
|
54
|
41
|
47
|
55
|
70
|
69
|
69
|
|
2023/12
|
38
|
34
|
40
|
42
|
48
|
54
|
55
|
68
|
87
|
88
|
34
|
24
|
17
|
23
|
21
|
34
|
36
|
33
|
42
|
48
|
74
|
78
|
72
|
71
|
75
|
80
|
83
|
106
|
146
|
94
|
67
|
|
2023/11
|
33
|
41
|
47
|
32
|
32
|
27
|
25
|
28
|
36
|
26
|
18
|
25
|
25
|
32
|
31
|
32
|
49
|
50
|
52
|
47
|
45
|
54
|
64
|
59
|
55
|
62
|
50
|
51
|
51
|
49
|
|
|
2023/10
|
19
|
18
|
15
|
16
|
22
|
24
|
21
|
22
|
27
|
31
|
35
|
40
|
40
|
35
|
33
|
36
|
43
|
49
|
61
|
23
|
30
|
38
|
44
|
52
|
33
|
18
|
20
|
25
|
27
|
25
|
29
|
|
2023/09
|
41
|
40
|
37
|
35
|
43
|
40
|
38
|
34
|
32
|
34
|
42
|
24
|
22
|
29
|
33
|
30
|
29
|
30
|
26
|
24
|
20
|
16
|
15
|
12
|
16
|
19
|
21
|
28
|
29
|
19
|
|
|
2023/08
|
21
|
18
|
19
|
22
|
20
|
19
|
22
|
25
|
25
|
25
|
29
|
31
|
23
|
23
|
27
|
28
|
30
|
36
|
35
|
33
|
31
|
28
|
32
|
38
|
37
|
31
|
18
|
20
|
23
|
29
|
34
|
|
2023/07
|
18
|
24
|
27
|
24
|
21
|
24
|
26
|
18
|
15
|
17
|
26
|
27
|
28
|
23
|
33
|
35
|
36
|
33
|
24
|
17
|
19
|
21
|
24
|
24
|
15
|
13
|
19
|
21
|
20
|
21
|
21
|
|
2023/06
|
24
|
29
|
41
|
45
|
20
|
17
|
20
|
23
|
30
|
36
|
41
|
35
|
30
|
26
|
28
|
25
|
17
|
16
|
19
|
25
|
21
|
28
|
22
|
26
|
31
|
30
|
25
|
19
|
22
|
20
|
|
|
2023/05
|
42
|
40
|
37
|
37
|
23
|
21
|
25
|
30
|
34
|
27
|
26
|
33
|
42
|
47
|
48
|
27
|
26
|
32
|
33
|
34
|
27
|
19
|
22
|
28
|
30
|
22
|
22
|
31
|
30
|
27
|
22
|
|
2023/04
|
38
|
51
|
39
|
24
|
21
|
25
|
40
|
64
|
66
|
61
|
57
|
73
|
70
|
53
|
49
|
46
|
49
|
48
|
33
|
41
|
41
|
24
|
19
|
17
|
24
|
28
|
32
|
34
|
52
|
54
|
|
|
2023/03
|
74
|
63
|
62
|
52
|
49
|
56
|
49
|
34
|
37
|
36
|
33
|
59
|
40
|
33
|
44
|
73
|
22
|
21
|
20
|
23
|
22
|
22
|
23
|
28
|
32
|
39
|
43
|
33
|
40
|
34
|
33
|
|
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