Air Quality
Excellent
No health implications.
17
PM2.5
22
PM10
54
O3
0.8
CO
5
SO2
16
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
26 Aug
54
Good
Thu
27 Aug
57
Good
Fri
28 Aug
61
Good
Sat
29 Aug
56
Good
Sun
30 Aug
59
Good
Mon
31 Aug
56
Good
Tue
1 Sep
29
Excellent
Air quality in the last 12 months (Chaonan)
|
2026/07
|
19
|
21
|
19
|
18
|
17
|
14
|
16
|
17
|
24
|
34
|
34
|
35
|
18
|
15
|
18
|
18
|
18
|
28
|
30
|
35
|
43
|
45
|
46
|
45
|
35
|
21
|
18
|
15
|
20
|
24
|
25
|
|
2026/06
|
46
|
44
|
28
|
28
|
34
|
37
|
21
|
20
|
22
|
23
|
34
|
40
|
30
|
16
|
17
|
18
|
17
|
17
|
20
|
20
|
21
|
25
|
22
|
30
|
26
|
22
|
29
|
23
|
17
|
20
|
|
|
2026/05
|
43
|
53
|
42
|
26
|
29
|
41
|
42
|
47
|
35
|
41
|
48
|
68
|
43
|
16
|
23
|
26
|
30
|
39
|
45
|
26
|
22
|
26
|
25
|
27
|
30
|
26
|
28
|
36
|
35
|
47
|
52
|
|
2026/04
|
33
|
32
|
58
|
44
|
28
|
32
|
36
|
41
|
50
|
25
|
28
|
27
|
22
|
21
|
28
|
32
|
32
|
53
|
47
|
40
|
32
|
29
|
27
|
21
|
29
|
48
|
49
|
40
|
32
|
21
|
|
|
2026/03
|
27
|
60
|
27
|
37
|
41
|
30
|
49
|
38
|
35
|
46
|
45
|
49
|
47
|
48
|
44
|
46
|
42
|
43
|
49
|
37
|
42
|
45
|
53
|
39
|
61
|
36
|
49
|
36
|
41
|
38
|
41
|
|
2026/02
|
32
|
36
|
48
|
54
|
59
|
56
|
30
|
43
|
42
|
44
|
61
|
47
|
51
|
48
|
44
|
49
|
39
|
42
|
43
|
65
|
70
|
80
|
62
|
86
|
73
|
27
|
50
|
12
|
|||
|
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
|
|
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