Air Quality
Excellent
No health implications.
21
PM2.5
31
PM10
68
O3
0.7
CO
5
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
19 Aug
49
Excellent
Thu
20 Aug
51
Good
Fri
21 Aug
48
Excellent
Sat
22 Aug
45
Excellent
Sun
23 Aug
44
Excellent
Mon
24 Aug
47
Excellent
Tue
25 Aug
23
Excellent
Air quality in the last 12 months (Guidong)
|
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
|
|
|
2025/08
|
29
|
22
|
15
|
19
|
14
|
11
|
14
|
17
|
25
|
33
|
30
|
28
|
26
|
22
|
12
|
21
|
22
|
18
|
14
|
17
|
20
|
20
|
22
|
19
|
17
|
19
|
23
|
22
|
23
|
22
|
23
|
|
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