Air Quality
Excellent
No health implications.
3
PM2.5
9
PM10
47
O3
0.7
CO
5
SO2
5
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
3 Mar
64
Good
Wed
4 Mar
67
Good
Thu
5 Mar
74
Good
Fri
6 Mar
61
Good
Sat
7 Mar
59
Good
Sun
8 Mar
27
Excellent
Mon
9 Mar
33
Excellent
Chaonan Air quality rank
Air quality in the last 12 months (Chaonan)
|
2026/01
|
39
|
28
|
38
|
54
|
63
|
34
|
48
|
56
|
57
|
70
|
71
|
66
|
79
|
64
|
58
|
62
|
66
|
62
|
53
|
33
|
48
|
47
|
52
|
50
|
36
|
48
|
56
|
36
|
33
|
56
|
42
|
|
2025/12
|
50
|
39
|
46
|
52
|
42
|
46
|
64
|
79
|
51
|
50
|
54
|
48
|
50
|
42
|
52
|
60
|
73
|
52
|
62
|
51
|
79
|
39
|
43
|
44
|
27
|
33
|
40
|
45
|
53
|
55
|
40
|
|
2025/11
|
32
|
44
|
49
|
33
|
26
|
36
|
32
|
38
|
50
|
31
|
34
|
21
|
16
|
30
|
46
|
46
|
45
|
43
|
29
|
58
|
50
|
55
|
69
|
66
|
45
|
66
|
67
|
70
|
90
|
82
|
|
|
2025/10
|
39
|
25
|
32
|
29
|
21
|
23
|
46
|
33
|
32
|
25
|
28
|
27
|
13
|
29
|
28
|
31
|
37
|
35
|
34
|
23
|
22
|
18
|
29
|
40
|
38
|
52
|
50
|
45
|
28
|
46
|
46
|
|
2025/09
|
26
|
27
|
30
|
25
|
26
|
32
|
11
|
15
|
15
|
20
|
23
|
29
|
21
|
19
|
19
|
28
|
23
|
25
|
11
|
14
|
17
|
33
|
23
|
27
|
25
|
31
|
25
|
28
|
39
|
36
|
|
|
2025/08
|
24
|
17
|
16
|
11
|
10
|
28
|
39
|
40
|
24
|
12
|
10
|
22
|
34
|
9
|
24
|
27
|
19
|
13
|
16
|
36
|
28
|
46
|
35
|
17
|
29
|
23
|
20
|
25
|
24
|
18
|
23
|
|
2025/07
|
17
|
24
|
26
|
29
|
10
|
22
|
38
|
30
|
24
|
17
|
12
|
35
|
37
|
34
|
30
|
29
|
34
|
25
|
20
|
21
|
22
|
15
|
25
|
31
|
31
|
32
|
35
|
22
|
22
|
33
|
20
|
|
2025/06
|
45
|
17
|
22
|
22
|
35
|
29
|
39
|
21
|
26
|
23
|
17
|
20
|
13
|
28
|
26
|
17
|
14
|
26
|
13
|
12
|
11
|
15
|
19
|
17
|
13
|
11
|
17
|
14
|
11
|
13
|
|
|
2025/05
|
49
|
66
|
53
|
45
|
36
|
28
|
36
|
58
|
48
|
34
|
30
|
44
|
42
|
41
|
26
|
20
|
19
|
18
|
23
|
17
|
18
|
22
|
19
|
26
|
27
|
41
|
32
|
27
|
21
|
21
|
37
|
|
2025/04
|
25
|
47
|
62
|
63
|
39
|
61
|
65
|
73
|
53
|
39
|
53
|
39
|
154
|
122
|
128
|
97
|
73
|
63
|
35
|
41
|
29
|
31
|
35
|
32
|
18
|
22
|
46
|
47
|
38
|
59
|
|
|
2025/03
|
74
|
44
|
39
|
32
|
20
|
22
|
30
|
37
|
44
|
50
|
59
|
66
|
56
|
30
|
33
|
13
|
52
|
55
|
53
|
59
|
66
|
65
|
66
|
72
|
62
|
44
|
34
|
46
|
46
|
12
|
14
|
|
2025/02
|
78
|
29
|
18
|
30
|
57
|
49
|
34
|
45
|
53
|
49
|
59
|
78
|
66
|
53
|
58
|
73
|
55
|
69
|
38
|
43
|
31
|
32
|
34
|
35
|
57
|
59
|
63
|
83
|
|||
|
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