Air Quality
Excellent
No health implications.
25
PM2.5
32
PM10
9
O3
0.5
CO
5
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
21 Feb
44
Excellent
Sun
22 Feb
55
Good
Mon
23 Feb
49
Excellent
Tue
24 Feb
43
Excellent
Wed
25 Feb
43
Excellent
Thu
26 Feb
34
Excellent
Fri
27 Feb
15
Excellent
Air quality in the last 12 months (Kaihua)
|
2026/01
|
22
|
29
|
60
|
73
|
52
|
53
|
51
|
47
|
49
|
52
|
57
|
59
|
57
|
52
|
52
|
62
|
88
|
97
|
61
|
14
|
40
|
56
|
67
|
69
|
77
|
81
|
23
|
67
|
74
|
36
|
13
|
|
2025/12
|
61
|
108
|
56
|
58
|
59
|
64
|
71
|
79
|
69
|
61
|
64
|
76
|
39
|
41
|
49
|
54
|
67
|
125
|
96
|
75
|
57
|
44
|
53
|
34
|
41
|
56
|
51
|
52
|
54
|
75
|
56
|
|
2025/11
|
42
|
51
|
60
|
41
|
33
|
35
|
32
|
41
|
12
|
42
|
39
|
28
|
45
|
47
|
68
|
64
|
50
|
30
|
36
|
39
|
47
|
56
|
58
|
55
|
70
|
80
|
85
|
85
|
63
|
55
|
|
|
2025/10
|
37
|
37
|
39
|
35
|
34
|
34
|
41
|
47
|
39
|
38
|
41
|
49
|
49
|
33
|
39
|
32
|
34
|
26
|
16
|
25
|
26
|
29
|
33
|
35
|
43
|
50
|
37
|
51
|
43
|
34
|
29
|
|
2025/09
|
26
|
25
|
28
|
32
|
34
|
28
|
26
|
26
|
21
|
19
|
21
|
23
|
24
|
22
|
28
|
33
|
29
|
28
|
23
|
23
|
22
|
29
|
29
|
18
|
24
|
24
|
33
|
36
|
39
|
37
|
|
|
2025/08
|
31
|
36
|
29
|
26
|
20
|
14
|
16
|
20
|
25
|
34
|
34
|
27
|
16
|
14
|
14
|
17
|
19
|
21
|
23
|
23
|
22
|
20
|
20
|
29
|
27
|
25
|
23
|
18
|
20
|
26
|
29
|
|
2025/07
|
15
|
20
|
24
|
30
|
26
|
18
|
17
|
17
|
17
|
30
|
28
|
16
|
16
|
23
|
27
|
31
|
30
|
27
|
18
|
13
|
12
|
14
|
17
|
18
|
23
|
14
|
15
|
14
|
21
|
20
|
19
|
|
2025/06
|
29
|
17
|
19
|
35
|
32
|
29
|
34
|
31
|
19
|
20
|
15
|
21
|
19
|
18
|
17
|
24
|
31
|
20
|
19
|
18
|
17
|
17
|
13
|
13
|
23
|
22
|
23
|
18
|
21
|
26
|
|
|
2025/05
|
43
|
47
|
52
|
54
|
28
|
54
|
104
|
49
|
18
|
41
|
37
|
44
|
42
|
43
|
61
|
38
|
23
|
39
|
36
|
20
|
15
|
28
|
11
|
45
|
59
|
59
|
60
|
44
|
21
|
29
|
39
|
|
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
|
|||
|
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