Air Quality
Excellent
No health implications.
28
PM2.5
35
PM10
72
O3
0.5
CO
2
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 Feb
52
Good
Mon
24 Feb
66
Good
Tue
25 Feb
63
Good
Wed
26 Feb
66
Good
Thu
27 Feb
67
Good
Fri
28 Feb
65
Good
Sat
1 Mar
22
Excellent
Air quality in the last 12 months (Kaihua)
|
2025/01
|
84
|
75
|
80
|
77
|
79
|
73
|
78
|
85
|
70
|
34
|
44
|
57
|
58
|
60
|
81
|
50
|
51
|
58
|
53
|
57
|
73
|
69
|
62
|
59
|
45
|
24
|
39
|
66
|
166
|
62
|
48
|
|
2024/12
|
46
|
51
|
67
|
87
|
53
|
40
|
82
|
78
|
51
|
56
|
20
|
61
|
69
|
78
|
60
|
52
|
63
|
66
|
50
|
49
|
66
|
68
|
61
|
69
|
79
|
100
|
132
|
92
|
64
|
69
|
71
|
|
2024/11
|
13
|
28
|
41
|
58
|
68
|
48
|
32
|
38
|
38
|
39
|
40
|
46
|
45
|
46
|
24
|
23
|
22
|
26
|
35
|
31
|
39
|
46
|
75
|
45
|
32
|
27
|
41
|
45
|
47
|
47
|
|
|
2024/10
|
23
|
28
|
28
|
29
|
33
|
30
|
16
|
21
|
42
|
45
|
57
|
58
|
47
|
42
|
47
|
14
|
26
|
33
|
22
|
23
|
40
|
41
|
36
|
45
|
37
|
36
|
18
|
26
|
57
|
46
|
36
|
|
2024/09
|
34
|
40
|
48
|
39
|
32
|
32
|
40
|
37
|
30
|
36
|
27
|
27
|
32
|
34
|
33
|
27
|
17
|
22
|
26
|
31
|
15
|
24
|
23
|
26
|
36
|
48
|
26
|
30
|
41
|
37
|
|
|
2024/08
|
20
|
27
|
31
|
32
|
29
|
30
|
33
|
33
|
36
|
39
|
40
|
28
|
20
|
21
|
28
|
39
|
41
|
38
|
24
|
21
|
20
|
34
|
36
|
38
|
40
|
49
|
45
|
24
|
37
|
35
|
31
|
|
2024/07
|
19
|
22
|
20
|
24
|
23
|
24
|
24
|
26
|
28
|
31
|
28
|
30
|
28
|
27
|
34
|
33
|
28
|
23
|
23
|
26
|
30
|
28
|
30
|
23
|
20
|
13
|
12
|
16
|
17
|
20
|
20
|
|
2024/06
|
11
|
20
|
26
|
47
|
31
|
16
|
21
|
26
|
33
|
22
|
16
|
18
|
27
|
25
|
24
|
28
|
18
|
22
|
24
|
23
|
27
|
28
|
27
|
17
|
11
|
18
|
11
|
18
|
20
|
25
|
|
|
2024/05
|
14
|
37
|
46
|
28
|
15
|
22
|
35
|
51
|
53
|
55
|
44
|
41
|
58
|
45
|
51
|
50
|
48
|
49
|
50
|
46
|
29
|
29
|
34
|
27
|
33
|
25
|
24
|
18
|
32
|
43
|
32
|
|
2024/04
|
31
|
21
|
20
|
21
|
38
|
35
|
23
|
19
|
32
|
50
|
53
|
34
|
40
|
24
|
43
|
51
|
22
|
21
|
35
|
25
|
26
|
18
|
34
|
58
|
53
|
39
|
38
|
44
|
25
|
16
|
|
|
2024/03
|
37
|
49
|
38
|
42
|
31
|
22
|
53
|
51
|
58
|
62
|
59
|
63
|
82
|
67
|
67
|
58
|
54
|
44
|
44
|
57
|
46
|
47
|
51
|
41
|
32
|
19
|
40
|
28
|
41
|
44
|
31
|
|
2024/02
|
29
|
17
|
14
|
16
|
19
|
26
|
35
|
61
|
99
|
175
|
73
|
54
|
47
|
41
|
33
|
22
|
27
|
40
|
43
|
35
|
19
|
11
|
17
|
20
|
38
|
66
|
74
|
51
|
26
|
||
|
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