Yunnan - China   2025-07-03   Thursday   24.67N, 102.92E

Chengjiang

Yunnan - China
2025-07-03

Air Quality

Excellent

No health implications.

4

PM2.5

11

PM10

42

O3

0.2

CO

3

SO2

6

NO2

No health implications.

Advise

Everyone can continue their outdoor activities normally.

Air Quality

Today

3 Jul

33 Excellent

Fri

4 Jul

35 Excellent

Sat

5 Jul

37 Excellent

Sun

6 Jul

48 Excellent

Mon

7 Jul

49 Excellent

Tue

8 Jul

48 Excellent

Wed

9 Jul

32 Excellent

Chengjiang Air quality rank

Monthly Average AQI (Chengjiang)

2020/06 - 2025/05

Air quality in the last 12 months (Chengjiang)

2025/05
35
24
21
16
22
26
26
31
43
34
19
26
28
28
24
22
29
22
34
24
32
30
51
32
18
14
13
13
9
11
11
2025/04
31
56
85
84
89
75
70
64
58
67
56
43
73
58
51
22
22
29
32
35
30
25
38
48
48
57
61
59
30
31
2025/03
40
43
48
45
53
48
36
53
45
37
52
61
60
65
55
39
33
20
33
46
65
65
54
43
41
46
49
88
108
73
63
2025/02
44
48
28
40
49
47
32
39
45
34
39
46
54
54
57
57
42
40
42
49
58
49
53
27
29
24
28
38
2025/01
31
35
45
38
36
49
38
36
43
27
23
44
35
44
78
71
48
35
64
44
45
38
32
23
25
29
42
52
72
32
31
2024/12
20
22
20
19
19
19
22
30
16
21
30
24
32
38
38
34
23
30
39
31
32
30
30
33
34
40
43
36
32
24
41
2024/11
28
33
44
42
43
49
32
26
22
30
23
20
20
25
26
26
31
30
33
32
18
25
20
19
20
32
19
25
22
18
2024/10
16
18
29
25
20
28
39
40
27
16
21
22
22
25
24
16
15
26
36
23
18
25
27
32
27
35
45
49
48
37
28
2024/09
24
22
26
18
18
31
28
10
10
10
14
13
26
29
32
24
20
22
24
31
27
17
22
39
37
36
28
20
20
22
2024/08
37
28
19
16
17
13
14
13
12
17
33
47
53
41
34
33
34
38
31
41
32
19
16
19
20
14
19
24
24
34
29
2024/07
11
18
14
9
15
15
12
13
13
13
10
13
13
14
16
14
17
15
15
16
12
11
18
23
17
21
26
24
22
14
20
2024/06
33
23
30
28
16
15
15
18
16
11
17
21
11
17
25
15
25
25
30
34
21
21
17
17
18
12
12
11
12
13
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