Air Quality
Excellent
No health implications.
21
PM2.5
39
PM10
94
O3
0.6
CO
9
SO2
17
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
20 Jan
76
Good
Wed
21 Jan
56
Good
Thu
22 Jan
70
Good
Fri
23 Jan
66
Good
Sat
24 Jan
56
Good
Sun
25 Jan
55
Good
Mon
26 Jan
29
Excellent
Chaonan Air quality rank
Air quality in the last 12 months (Chaonan)
|
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
|
|||
|
2025/01
|
59
|
63
|
63
|
54
|
71
|
74
|
60
|
63
|
59
|
62
|
49
|
47
|
59
|
58
|
63
|
92
|
61
|
53
|
93
|
58
|
62
|
63
|
69
|
36
|
35
|
37
|
31
|
54
|
70
|
60
|
72
|
|
2024/12
|
71
|
76
|
70
|
42
|
48
|
49
|
53
|
43
|
44
|
36
|
50
|
38
|
37
|
59
|
55
|
56
|
62
|
52
|
56
|
50
|
54
|
60
|
61
|
42
|
58
|
52
|
59
|
86
|
67
|
74
|
87
|
|
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