Air Quality
Excellent
No health implications.
16
PM2.5
21
PM10
50
O3
0.3
CO
6
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 Mar
43
Excellent
Wed
19 Mar
52
Good
Thu
20 Mar
50
Excellent
Fri
21 Mar
52
Good
Sat
22 Mar
57
Good
Sun
23 Mar
58
Good
Mon
24 Mar
47
Excellent
Air quality in the last 12 months (Kaiyang)
|
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
|
|
|
2024/08
|
12
|
9
|
12
|
10
|
16
|
19
|
18
|
18
|
19
|
19
|
33
|
52
|
49
|
37
|
32
|
32
|
27
|
25
|
32
|
30
|
28
|
20
|
13
|
14
|
11
|
17
|
21
|
25
|
28
|
30
|
25
|
|
2024/07
|
17
|
23
|
13
|
11
|
13
|
13
|
15
|
15
|
18
|
18
|
15
|
17
|
17
|
13
|
11
|
14
|
13
|
11
|
9
|
11
|
10
|
14
|
13
|
13
|
23
|
31
|
29
|
28
|
14
|
12
|
12
|
|
2024/06
|
23
|
22
|
9
|
11
|
20
|
19
|
11
|
8
|
8
|
11
|
21
|
15
|
24
|
25
|
29
|
26
|
12
|
14
|
16
|
20
|
19
|
14
|
19
|
21
|
18
|
9
|
12
|
16
|
9
|
22
|
|
|
2024/05
|
15
|
17
|
9
|
13
|
32
|
39
|
20
|
31
|
30
|
25
|
18
|
17
|
28
|
36
|
37
|
40
|
41
|
21
|
20
|
27
|
13
|
24
|
36
|
35
|
35
|
19
|
28
|
31
|
22
|
13
|
25
|
|
2024/04
|
43
|
46
|
34
|
14
|
15
|
13
|
16
|
19
|
30
|
37
|
33
|
36
|
51
|
58
|
65
|
56
|
32
|
21
|
18
|
21
|
34
|
46
|
27
|
36
|
29
|
37
|
25
|
36
|
48
|
12
|
|
|
2024/03
|
48
|
58
|
43
|
36
|
30
|
22
|
56
|
57
|
42
|
53
|
53
|
45
|
33
|
37
|
29
|
29
|
27
|
11
|
35
|
64
|
63
|
56
|
37
|
48
|
30
|
25
|
42
|
30
|
42
|
45
|
52
|
|
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