Air Quality
Excellent
No health implications.
7
PM2.5
14
PM10
32
O3
0.4
CO
5
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
20 May
50
Excellent
Wed
21 May
50
Excellent
Thu
22 May
51
Good
Fri
23 May
45
Excellent
Sat
24 May
57
Good
Sun
25 May
72
Good
Mon
26 May
31
Excellent
Air quality in the last 12 months (Kaihua)
|
2025/04
|
36
|
41
|
60
|
66
|
56
|
56
|
56
|
55
|
58
|
46
|
49
|
105
|
141
|
95
|
56
|
45
|
56
|
58
|
49
|
50
|
52
|
15
|
39
|
31
|
25
|
38
|
29
|
34
|
51
|
54
|
|
|
2025/03
|
40
|
43
|
32
|
14
|
31
|
40
|
54
|
54
|
70
|
81
|
79
|
51
|
15
|
28
|
14
|
35
|
35
|
38
|
44
|
32
|
42
|
43
|
51
|
57
|
59
|
66
|
58
|
65
|
38
|
55
|
40
|
|
2025/02
|
16
|
14
|
51
|
47
|
41
|
49
|
61
|
41
|
34
|
45
|
55
|
56
|
100
|
105
|
74
|
43
|
55
|
28
|
39
|
17
|
16
|
22
|
30
|
54
|
76
|
55
|
48
|
37
|
|||
|
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
|
|
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