Yunnan - China   2025-10-21   Tuesday   24.89N, 102.80E

Chenggong

Yunnan - China
2025-10-21

Air Quality

Excellent

No health implications.

9

PM2.5

15

PM10

30

O3

0.7

CO

4

SO2

11

NO2

No health implications.

Advise

Everyone can continue their outdoor activities normally.

Air Quality

Today

21 Oct

34 Excellent

Wed

22 Oct

33 Excellent

Thu

23 Oct

35 Excellent

Fri

24 Oct

34 Excellent

Sat

25 Oct

38 Excellent

Sun

26 Oct

35 Excellent

Mon

27 Oct

42 Excellent

Chenggong Air quality rank

Monthly Average AQI (Chenggong)

2020/09 - 2025/08

Air quality in the last 12 months (Chenggong)

2025/08
30
31
18
18
33
29
14
9
13
14
13
15
20
41
30
11
12
21
29
22
10
8
10
11
11
12
15
16
15
14
22
2025/07
12
9
16
16
16
17
22
10
16
20
21
28
37
25
33
34
27
27
15
23
19
16
11
11
16
15
17
26
41
29
19
2025/06
13
18
18
22
25
32
31
35
29
32
32
39
45
43
15
21
14
8
11
17
21
10
15
8
9
14
15
17
16
16
2025/05
40
25
25
21
25
28
29
34
46
36
26
31
30
31
28
26
34
30
37
29
37
32
52
31
20
18
17
17
15
15
12
2025/04
33
53
89
84
93
79
77
68
63
71
58
49
70
60
55
27
26
33
34
38
33
29
40
50
50
62
65
63
33
33
2025/03
45
47
51
49
52
51
39
55
49
44
53
64
67
72
63
41
32
25
38
47
66
64
53
49
41
46
46
89
119
73
64
2025/02
49
51
31
43
51
52
33
43
49
35
41
55
58
59
60
62
41
39
47
54
63
56
61
32
33
31
32
43
2025/01
31
40
46
37
35
48
35
31
47
23
22
47
39
43
78
72
42
31
73
45
42
34
32
25
28
32
43
54
70
33
32
2024/12
18
28
17
22
26
24
26
40
16
23
29
26
48
42
38
26
25
29
37
29
29
23
30
29
29
40
40
35
31
24
47
2024/11
30
32
48
36
44
47
30
22
22
37
27
20
20
25
35
28
37
32
32
29
17
26
18
17
19
34
25
32
22
18
2024/10
13
21
30
26
21
26
44
36
31
16
19
22
23
29
25
19
17
31
40
30
21
29
30
36
38
36
49
45
53
44
36
2024/09
26
26
25
21
20
36
34
18
14
15
19
21
32
38
35
27
24
24
27
36
33
22
25
44
42
40
30
22
23
26
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