Air Quality
Excellent
No health implications.
16
PM2.5
39
PM10
111
O3
0.4
CO
3
SO2
4
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
8 Oct
38
Excellent
Fri
9 Oct
55
Good
Sat
10 Oct
58
Good
Sun
11 Oct
54
Good
Mon
12 Oct
62
Good
Tue
13 Oct
58
Good
Wed
14 Oct
47
Excellent
Air quality in the last 12 months (Chengmai)
|
2026/08
|
14
|
13
|
15
|
16
|
13
|
13
|
15
|
20
|
27
|
30
|
37
|
22
|
21
|
26
|
22
|
21
|
23
|
26
|
20
|
17
|
15
|
15
|
16
|
19
|
16
|
20
|
24
|
23
|
20
|
20
|
20
|
|
2026/07
|
17
|
16
|
15
|
15
|
20
|
15
|
14
|
15
|
24
|
17
|
21
|
18
|
21
|
21
|
22
|
22
|
22
|
25
|
36
|
39
|
36
|
36
|
29
|
33
|
32
|
25
|
24
|
18
|
16
|
14
|
13
|
|
2026/06
|
24
|
26
|
27
|
27
|
24
|
22
|
22
|
22
|
23
|
27
|
32
|
24
|
21
|
21
|
25
|
25
|
25
|
24
|
21
|
23
|
22
|
23
|
23
|
26
|
27
|
26
|
24
|
20
|
21
|
18
|
|
|
2026/05
|
31
|
25
|
28
|
23
|
28
|
23
|
20
|
20
|
17
|
22
|
24
|
22
|
25
|
28
|
26
|
19
|
18
|
18
|
18
|
17
|
19
|
18
|
21
|
23
|
23
|
27
|
25
|
25
|
28
|
28
|
20
|
|
2026/04
|
42
|
39
|
38
|
39
|
52
|
52
|
53
|
49
|
35
|
38
|
50
|
49
|
44
|
42
|
40
|
36
|
31
|
26
|
34
|
32
|
30
|
33
|
52
|
30
|
26
|
29
|
20
|
26
|
29
|
25
|
|
|
2026/03
|
15
|
23
|
25
|
12
|
19
|
29
|
32
|
35
|
30
|
24
|
31
|
35
|
40
|
42
|
38
|
35
|
28
|
26
|
26
|
23
|
24
|
27
|
30
|
28
|
26
|
27
|
32
|
37
|
34
|
28
|
35
|
|
2026/02
|
29
|
31
|
28
|
33
|
30
|
22
|
21
|
36
|
35
|
32
|
28
|
23
|
31
|
29
|
27
|
27
|
32
|
39
|
35
|
35
|
37
|
27
|
25
|
28
|
37
|
31
|
35
|
17
|
|||
|
2026/01
|
32
|
43
|
33
|
38
|
44
|
54
|
45
|
39
|
43
|
42
|
44
|
44
|
55
|
49
|
37
|
37
|
38
|
44
|
32
|
37
|
48
|
50
|
44
|
39
|
20
|
25
|
30
|
43
|
30
|
27
|
30
|
|
2025/12
|
41
|
23
|
33
|
54
|
43
|
54
|
40
|
60
|
51
|
43
|
48
|
34
|
35
|
27
|
50
|
40
|
46
|
47
|
44
|
36
|
32
|
40
|
34
|
32
|
32
|
36
|
39
|
39
|
40
|
36
|
46
|
|
2025/11
|
40
|
41
|
36
|
18
|
19
|
26
|
14
|
16
|
27
|
44
|
33
|
27
|
50
|
35
|
39
|
41
|
38
|
51
|
27
|
33
|
40
|
42
|
48
|
52
|
47
|
52
|
51
|
54
|
60
|
34
|
|
|
2025/10
|
15
|
14
|
12
|
15
|
16
|
13
|
17
|
16
|
20
|
24
|
22
|
15
|
9
|
11
|
15
|
21
|
23
|
30
|
33
|
31
|
22
|
20
|
22
|
25
|
39
|
42
|
35
|
36
|
36
|
20
|
41
|
|
2025/09
|
12
|
15
|
15
|
16
|
14
|
12
|
20
|
20
|
19
|
16
|
17
|
14
|
14
|
13
|
17
|
12
|
13
|
14
|
19
|
21
|
22
|
13
|
23
|
23
|
17
|
18
|
26
|
15
|
17
|
18
|
|
|
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