Yunnan - China   2025-09-26   Friday   23.61N, 104.34E

Yanshan

Yunnan - China
2025-09-26

Air Quality

Excellent

No health implications.

6

PM2.5

13

PM10

40

O3

0.5

CO

5

SO2

10

NO2

No health implications.

Advise

Everyone can continue their outdoor activities normally.

Air Quality

Today

26 Sep

37 Excellent

Sat

27 Sep

38 Excellent

Sun

28 Sep

34 Excellent

Mon

29 Sep

35 Excellent

Tue

30 Sep

34 Excellent

Wed

1 Oct

32 Excellent

Thu

2 Oct

22 Excellent

Yanshan Air quality rank

Monthly Average AQI (Yanshan)

2020/09 - 2025/08

Air quality in the last 12 months (Yanshan)

2025/08
21
31
23
22
28
34
16
16
17
21
19
23
27
42
27
13
13
26
19
16
15
15
15
18
21
13
15
13
16
18
19
2025/07
13
12
12
12
16
22
22
22
24
19
21
25
23
25
18
19
17
28
21
25
21
15
11
10
11
13
18
28
33
28
20
2025/06
19
23
20
21
19
29
29
24
24
29
39
25
29
30
21
17
17
15
16
15
17
13
13
13
13
14
13
20
12
13
2025/05
37
43
29
18
28
33
39
41
40
21
18
21
28
41
24
19
20
19
18
18
26
27
34
38
24
16
16
15
14
13
12
2025/04
38
61
67
86
94
31
38
49
52
57
56
58
98
85
60
45
44
35
35
39
32
27
43
50
35
43
55
35
32
34
2025/03
35
39
55
63
81
43
46
43
44
35
44
46
44
52
57
27
31
19
32
42
56
80
82
73
61
56
62
83
85
38
26
2025/02
44
47
20
32
62
46
22
24
22
31
36
53
37
37
47
47
26
22
25
27
22
22
22
13
19
16
24
35
2025/01
53
57
84
87
65
93
113
98
64
25
38
51
54
70
75
90
92
108
77
64
92
105
55
35
42
23
41
50
65
44
46
2024/12
44
59
48
46
44
20
23
20
16
26
36
29
34
36
74
72
51
51
70
77
79
78
79
72
80
92
74
44
46
59
41
2024/11
33
45
47
39
45
53
50
59
52
54
49
42
45
49
41
39
50
53
61
38
42
42
38
45
46
35
19
23
44
49
2024/10
12
16
28
26
31
36
43
59
43
38
42
48
60
38
30
13
15
27
33
24
30
29
25
42
42
34
43
49
43
30
32
2024/09
29
17
29
22
25
34
29
11
9
11
17
19
22
24
29
25
18
22
25
35
30
15
27
34
38
44
44
36
24
18
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