Air Quality
Excellent
No health implications.
11
PM2.5
20
PM10
25
O3
0.4
CO
7
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 Sep
40
Excellent
Fri
19 Sep
41
Excellent
Sat
20 Sep
37
Excellent
Sun
21 Sep
36
Excellent
Mon
22 Sep
34
Excellent
Tue
23 Sep
37
Excellent
Wed
24 Sep
17
Excellent
Air quality in the last 12 months (Kaiyang)
|
2025/08
|
27
|
29
|
31
|
35
|
32
|
20
|
21
|
18
|
22
|
27
|
17
|
20
|
28
|
23
|
16
|
14
|
20
|
21
|
15
|
18
|
16
|
12
|
20
|
22
|
21
|
19
|
22
|
21
|
30
|
35
|
31
|
|
2025/07
|
17
|
15
|
16
|
20
|
22
|
32
|
30
|
31
|
22
|
22
|
23
|
29
|
29
|
30
|
25
|
25
|
24
|
29
|
28
|
25
|
14
|
13
|
14
|
17
|
18
|
21
|
24
|
29
|
30
|
25
|
25
|
|
2025/06
|
21
|
18
|
26
|
29
|
34
|
38
|
44
|
47
|
39
|
32
|
35
|
34
|
37
|
27
|
30
|
35
|
29
|
23
|
15
|
23
|
29
|
18
|
24
|
15
|
16
|
16
|
19
|
20
|
19
|
16
|
|
|
2025/05
|
43
|
56
|
48
|
28
|
38
|
33
|
27
|
26
|
37
|
27
|
42
|
39
|
37
|
44
|
49
|
47
|
39
|
47
|
62
|
41
|
27
|
25
|
37
|
51
|
41
|
34
|
14
|
13
|
20
|
25
|
19
|
|
2025/04
|
34
|
46
|
55
|
63
|
59
|
60
|
64
|
68
|
74
|
60
|
57
|
122
|
201
|
94
|
75
|
65
|
56
|
54
|
20
|
25
|
37
|
23
|
39
|
23
|
39
|
30
|
20
|
31
|
42
|
18
|
|
|
2025/03
|
47
|
63
|
58
|
29
|
21
|
28
|
37
|
43
|
23
|
32
|
37
|
54
|
36
|
26
|
23
|
29
|
35
|
31
|
36
|
49
|
58
|
63
|
56
|
59
|
60
|
62
|
64
|
72
|
22
|
24
|
36
|
|
2025/02
|
25
|
16
|
30
|
37
|
40
|
25
|
27
|
50
|
55
|
49
|
37
|
50
|
45
|
20
|
31
|
43
|
33
|
29
|
20
|
17
|
21
|
16
|
23
|
32
|
29
|
44
|
35
|
41
|
|||
|
2025/01
|
92
|
90
|
86
|
84
|
86
|
83
|
64
|
49
|
29
|
41
|
52
|
57
|
50
|
65
|
62
|
70
|
60
|
55
|
56
|
74
|
76
|
82
|
81
|
57
|
21
|
22
|
43
|
42
|
94
|
44
|
38
|
|
2024/12
|
77
|
101
|
51
|
37
|
19
|
23
|
22
|
40
|
21
|
10
|
19
|
41
|
55
|
62
|
59
|
62
|
68
|
59
|
68
|
95
|
118
|
78
|
79
|
82
|
80
|
53
|
69
|
81
|
76
|
49
|
57
|
|
2024/11
|
50
|
32
|
55
|
48
|
46
|
56
|
50
|
51
|
44
|
37
|
38
|
40
|
50
|
47
|
63
|
56
|
33
|
11
|
13
|
16
|
16
|
25
|
32
|
17
|
13
|
18
|
28
|
33
|
41
|
52
|
|
|
2024/10
|
10
|
13
|
29
|
35
|
42
|
50
|
36
|
26
|
36
|
52
|
60
|
58
|
33
|
22
|
30
|
30
|
17
|
27
|
11
|
12
|
18
|
14
|
20
|
20
|
22
|
36
|
52
|
45
|
32
|
38
|
45
|
|
2024/09
|
26
|
20
|
16
|
18
|
28
|
33
|
27
|
17
|
14
|
21
|
25
|
27
|
35
|
30
|
23
|
35
|
25
|
23
|
27
|
35
|
27
|
18
|
31
|
36
|
42
|
50
|
50
|
40
|
26
|
14
|
|
|
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