Air Quality
Excellent
No health implications.
3
PM2.5
8
PM10
49
O3
0.3
CO
4
SO2
2
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
13 Jun
22
Excellent
Sat
14 Jun
29
Excellent
Sun
15 Jun
28
Excellent
Mon
16 Jun
30
Excellent
Tue
17 Jun
29
Excellent
Wed
18 Jun
28
Excellent
Thu
19 Jun
20
Excellent
Air quality in the last 12 months (Chengmai)
|
2025/05
|
23
|
21
|
27
|
26
|
21
|
25
|
23
|
18
|
23
|
18
|
24
|
38
|
24
|
14
|
12
|
16
|
14
|
18
|
18
|
18
|
18
|
16
|
18
|
15
|
27
|
37
|
29
|
20
|
16
|
13
|
12
|
|
2025/04
|
21
|
33
|
30
|
32
|
34
|
20
|
35
|
33
|
39
|
37
|
35
|
36
|
145
|
166
|
133
|
106
|
84
|
51
|
37
|
30
|
25
|
29
|
27
|
31
|
32
|
24
|
18
|
27
|
28
|
26
|
|
|
2025/03
|
29
|
27
|
33
|
33
|
32
|
14
|
12
|
15
|
32
|
39
|
33
|
25
|
20
|
23
|
29
|
17
|
33
|
39
|
48
|
49
|
43
|
42
|
37
|
43
|
43
|
41
|
43
|
40
|
18
|
9
|
15
|
|
2025/02
|
30
|
19
|
30
|
25
|
26
|
35
|
42
|
32
|
53
|
42
|
30
|
19
|
28
|
23
|
18
|
22
|
32
|
45
|
43
|
33
|
36
|
22
|
22
|
27
|
23
|
31
|
35
|
28
|
|||
|
2025/01
|
66
|
48
|
60
|
50
|
58
|
71
|
46
|
52
|
62
|
65
|
49
|
45
|
42
|
33
|
41
|
56
|
58
|
49
|
51
|
56
|
42
|
52
|
43
|
38
|
28
|
30
|
30
|
32
|
47
|
44
|
41
|
|
2024/12
|
39
|
34
|
34
|
31
|
35
|
37
|
51
|
39
|
38
|
29
|
33
|
47
|
42
|
43
|
58
|
44
|
38
|
48
|
48
|
51
|
50
|
50
|
54
|
55
|
55
|
45
|
63
|
64
|
59
|
44
|
57
|
|
2024/11
|
48
|
43
|
33
|
28
|
42
|
47
|
51
|
47
|
51
|
47
|
46
|
42
|
49
|
52
|
40
|
35
|
28
|
28
|
26
|
8
|
16
|
28
|
30
|
29
|
23
|
27
|
34
|
38
|
40
|
44
|
|
|
2024/10
|
30
|
31
|
42
|
47
|
39
|
41
|
29
|
54
|
63
|
54
|
38
|
31
|
29
|
19
|
16
|
11
|
11
|
15
|
18
|
26
|
29
|
35
|
30
|
34
|
38
|
45
|
22
|
28
|
17
|
30
|
42
|
|
2024/09
|
14
|
16
|
16
|
24
|
28
|
18
|
14
|
26
|
22
|
16
|
12
|
19
|
23
|
21
|
26
|
27
|
21
|
21
|
15
|
11
|
15
|
12
|
12
|
14
|
21
|
30
|
27
|
21
|
21
|
22
|
|
|
2024/08
|
20
|
21
|
18
|
20
|
21
|
22
|
22
|
23
|
22
|
25
|
24
|
24
|
21
|
21
|
21
|
20
|
16
|
16
|
22
|
19
|
19
|
19
|
19
|
21
|
17
|
20
|
17
|
20
|
24
|
22
|
15
|
|
2024/07
|
18
|
19
|
16
|
12
|
12
|
12
|
12
|
13
|
15
|
18
|
17
|
16
|
14
|
14
|
14
|
14
|
11
|
12
|
14
|
14
|
13
|
10
|
13
|
17
|
15
|
15
|
22
|
23
|
18
|
16
|
18
|
|
2024/06
|
18
|
22
|
18
|
20
|
21
|
21
|
19
|
22
|
20
|
18
|
20
|
20
|
21
|
22
|
24
|
27
|
23
|
23
|
23
|
21
|
19
|
12
|
11
|
12
|
17
|
11
|
11
|
16
|
14
|
20
|
|
|
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