Air Quality
Excellent
No health implications.
18
PM2.5
33
PM10
119
O3
0.3
CO
7
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
10 Jan
81
Good
Sun
11 Jan
76
Good
Mon
12 Jan
79
Good
Tue
13 Jan
78
Good
Wed
14 Jan
76
Good
Thu
15 Jan
74
Good
Fri
16 Jan
32
Excellent
Chengmai Air quality rank
Air quality in the last 12 months (Chengmai)
|
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
|
|
|
2025/08
|
28
|
31
|
33
|
30
|
26
|
31
|
28
|
24
|
25
|
23
|
18
|
20
|
19
|
18
|
16
|
12
|
15
|
8
|
15
|
21
|
20
|
15
|
14
|
18
|
14
|
15
|
14
|
16
|
15
|
15
|
14
|
|
2025/07
|
15
|
14
|
11
|
15
|
16
|
19
|
16
|
22
|
24
|
25
|
21
|
20
|
25
|
27
|
27
|
26
|
21
|
23
|
16
|
13
|
8
|
15
|
18
|
15
|
16
|
17
|
19
|
15
|
20
|
17
|
20
|
|
2025/06
|
20
|
20
|
27
|
27
|
15
|
16
|
20
|
23
|
20
|
23
|
18
|
13
|
10
|
11
|
16
|
17
|
21
|
17
|
15
|
16
|
17
|
13
|
14
|
14
|
11
|
10
|
13
|
15
|
16
|
16
|
|
|
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
|
|
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