Air Quality
Excellent
No health implications.
15
PM2.5
38
PM10
70
O3
0.6
CO
4
SO2
14
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
27 Jan
47
Excellent
Wed
28 Jan
47
Excellent
Thu
29 Jan
53
Good
Fri
30 Jan
43
Excellent
Sat
31 Jan
45
Excellent
Sun
1 Feb
43
Excellent
Mon
2 Feb
25
Excellent
Air quality in the last 12 months (Tengchong)
|
2025/12
|
43
|
41
|
41
|
39
|
34
|
37
|
34
|
37
|
39
|
39
|
39
|
38
|
41
|
39
|
36
|
34
|
37
|
35
|
37
|
36
|
40
|
40
|
48
|
39
|
37
|
41
|
40
|
40
|
39
|
37
|
41
|
|
2025/11
|
32
|
22
|
16
|
16
|
19
|
16
|
23
|
30
|
29
|
23
|
22
|
23
|
26
|
25
|
29
|
29
|
29
|
29
|
29
|
23
|
25
|
24
|
24
|
27
|
31
|
30
|
35
|
37
|
41
|
42
|
|
|
2025/10
|
15
|
15
|
20
|
18
|
22
|
20
|
20
|
18
|
23
|
24
|
21
|
20
|
22
|
24
|
28
|
27
|
21
|
20
|
18
|
19
|
25
|
24
|
26
|
28
|
24
|
27
|
27
|
30
|
31
|
29
|
36
|
|
2025/09
|
24
|
24
|
24
|
24
|
23
|
21
|
21
|
26
|
28
|
27
|
24
|
21
|
15
|
15
|
16
|
15
|
18
|
23
|
26
|
28
|
25
|
26
|
26
|
23
|
28
|
32
|
25
|
25
|
25
|
18
|
|
|
2025/08
|
21
|
21
|
19
|
20
|
21
|
24
|
18
|
16
|
18
|
20
|
23
|
21
|
23
|
20
|
23
|
23
|
23
|
21
|
20
|
18
|
16
|
17
|
17
|
17
|
18
|
25
|
26
|
25
|
17
|
24
|
23
|
|
2025/07
|
18
|
19
|
19
|
18
|
13
|
14
|
16
|
15
|
18
|
20
|
21
|
23
|
26
|
19
|
17
|
18
|
18
|
23
|
19
|
25
|
19
|
24
|
29
|
23
|
15
|
16
|
16
|
24
|
24
|
20
|
16
|
|
2025/06
|
18
|
13
|
31
|
52
|
46
|
38
|
33
|
29
|
35
|
20
|
32
|
38
|
41
|
33
|
23
|
23
|
14
|
14
|
16
|
22
|
23
|
17
|
15
|
16
|
17
|
18
|
19
|
18
|
16
|
21
|
|
|
2025/05
|
36
|
23
|
29
|
26
|
32
|
37
|
39
|
40
|
46
|
54
|
58
|
51
|
39
|
43
|
38
|
40
|
37
|
34
|
40
|
35
|
38
|
34
|
40
|
37
|
17
|
17
|
25
|
18
|
16
|
19
|
16
|
|
2025/04
|
113
|
94
|
80
|
97
|
91
|
83
|
70
|
92
|
88
|
80
|
69
|
55
|
37
|
38
|
47
|
40
|
30
|
37
|
39
|
39
|
41
|
43
|
55
|
62
|
67
|
72
|
73
|
63
|
48
|
48
|
|
|
2025/03
|
54
|
57
|
51
|
48
|
58
|
62
|
70
|
79
|
71
|
59
|
68
|
85
|
90
|
61
|
57
|
52
|
58
|
74
|
67
|
68
|
79
|
70
|
61
|
55
|
47
|
45
|
60
|
103
|
126
|
108
|
103
|
|
2025/02
|
73
|
70
|
59
|
61
|
65
|
70
|
61
|
49
|
53
|
52
|
44
|
47
|
48
|
61
|
54
|
65
|
54
|
54
|
57
|
61
|
58
|
58
|
54
|
55
|
54
|
48
|
43
|
52
|
|||
|
2025/01
|
44
|
43
|
42
|
42
|
46
|
45
|
42
|
39
|
36
|
41
|
42
|
48
|
45
|
46
|
46
|
46
|
46
|
43
|
44
|
40
|
42
|
44
|
51
|
43
|
45
|
67
|
47
|
59
|
113
|
68
|
61
|
|
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