Air Quality
Excellent
No health implications.
35
PM2.5
43
PM10
98
O3
0.7
CO
7
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
19 Sep
68
Good
Sun
20 Sep
65
Good
Mon
21 Sep
80
Good
Tue
22 Sep
77
Good
Wed
23 Sep
75
Good
Thu
24 Sep
71
Good
Fri
25 Sep
50
Excellent
Air quality in the last 12 months (Guidong)
|
2026/08
|
20
|
18
|
18
|
25
|
33
|
41
|
34
|
35
|
30
|
29
|
25
|
25
|
23
|
19
|
21
|
29
|
35
|
35
|
31
|
31
|
31
|
29
|
28
|
18
|
20
|
22
|
29
|
33
|
31
|
19
|
20
|
|
2026/07
|
24
|
23
|
21
|
18
|
19
|
17
|
15
|
16
|
22
|
27
|
36
|
41
|
39
|
26
|
17
|
19
|
21
|
24
|
23
|
22
|
27
|
35
|
35
|
42
|
46
|
25
|
21
|
19
|
21
|
20
|
21
|
|
2026/06
|
51
|
45
|
32
|
28
|
25
|
26
|
30
|
24
|
26
|
34
|
34
|
38
|
28
|
21
|
32
|
38
|
37
|
17
|
17
|
19
|
24
|
26
|
28
|
23
|
25
|
31
|
32
|
42
|
25
|
23
|
|
|
2026/05
|
32
|
30
|
29
|
36
|
39
|
33
|
28
|
35
|
39
|
43
|
43
|
47
|
38
|
26
|
35
|
19
|
20
|
24
|
22
|
16
|
19
|
17
|
19
|
23
|
24
|
32
|
36
|
38
|
43
|
47
|
52
|
|
2026/04
|
27
|
35
|
24
|
39
|
48
|
34
|
25
|
36
|
41
|
43
|
44
|
33
|
38
|
36
|
25
|
32
|
32
|
37
|
44
|
52
|
27
|
18
|
22
|
33
|
39
|
49
|
58
|
45
|
24
|
27
|
|
|
2026/03
|
17
|
19
|
28
|
50
|
48
|
48
|
52
|
62
|
25
|
53
|
42
|
44
|
48
|
51
|
71
|
82
|
58
|
39
|
27
|
27
|
29
|
48
|
49
|
25
|
40
|
41
|
29
|
29
|
42
|
32
|
24
|
|
2026/02
|
36
|
45
|
55
|
62
|
73
|
75
|
44
|
50
|
52
|
55
|
40
|
53
|
61
|
59
|
52
|
36
|
57
|
60
|
51
|
33
|
51
|
61
|
53
|
37
|
35
|
27
|
16
|
22
|
|||
|
2026/01
|
39
|
32
|
43
|
58
|
44
|
54
|
51
|
49
|
52
|
57
|
64
|
69
|
76
|
66
|
77
|
82
|
94
|
96
|
76
|
24
|
34
|
45
|
60
|
53
|
75
|
70
|
71
|
55
|
53
|
56
|
26
|
|
2025/12
|
60
|
78
|
81
|
65
|
66
|
71
|
72
|
75
|
80
|
87
|
74
|
87
|
24
|
37
|
46
|
50
|
56
|
74
|
65
|
54
|
103
|
77
|
65
|
36
|
43
|
51
|
53
|
55
|
60
|
72
|
96
|
|
2025/11
|
44
|
44
|
28
|
21
|
26
|
28
|
43
|
26
|
14
|
14
|
38
|
48
|
38
|
46
|
48
|
50
|
65
|
31
|
31
|
34
|
40
|
51
|
58
|
57
|
52
|
62
|
61
|
69
|
64
|
57
|
|
|
2025/10
|
48
|
33
|
26
|
39
|
27
|
18
|
30
|
37
|
40
|
44
|
46
|
52
|
70
|
45
|
55
|
51
|
55
|
44
|
21
|
12
|
17
|
24
|
36
|
44
|
48
|
72
|
72
|
66
|
70
|
77
|
55
|
|
2025/09
|
24
|
25
|
27
|
27
|
26
|
27
|
38
|
18
|
11
|
15
|
15
|
20
|
24
|
32
|
33
|
23
|
25
|
34
|
31
|
16
|
19
|
22
|
29
|
17
|
18
|
21
|
28
|
40
|
39
|
46
|
|
|
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