Yunnan - China   2025-09-05   Friday   23.61N, 104.34E

Yanshan

Yunnan - China
2025-09-05

Air Quality

Excellent

No health implications.

9

PM2.5

29

PM10

46

O3

0.3

CO

4

SO2

9

NO2

No health implications.

Advise

Everyone can continue their outdoor activities normally.

Air Quality

Today

5 Sep

32 Excellent

Sat

6 Sep

36 Excellent

Sun

7 Sep

35 Excellent

Mon

8 Sep

35 Excellent

Tue

9 Sep

35 Excellent

Wed

10 Sep

33 Excellent

Thu

11 Sep

29 Excellent

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