Air Quality
Excellent
No health implications.
18
PM2.5
32
PM10
35
O3
0.6
CO
4
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
24 Feb
53
Good
Wed
25 Feb
53
Good
Thu
26 Feb
52
Good
Fri
27 Feb
55
Good
Sat
28 Feb
55
Good
Sun
1 Mar
53
Good
Mon
2 Mar
35
Excellent
Air quality in the last 12 months (Guidong)
|
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
|
|
2025/07
|
15
|
15
|
24
|
28
|
31
|
30
|
34
|
32
|
30
|
19
|
17
|
17
|
26
|
24
|
23
|
24
|
29
|
28
|
27
|
17
|
14
|
15
|
17
|
21
|
26
|
29
|
22
|
21
|
23
|
22
|
23
|
|
2025/06
|
15
|
15
|
22
|
28
|
29
|
24
|
23
|
22
|
23
|
27
|
24
|
21
|
26
|
11
|
11
|
19
|
8
|
11
|
11
|
12
|
15
|
15
|
21
|
24
|
31
|
19
|
15
|
15
|
16
|
15
|
|
|
2025/05
|
46
|
50
|
46
|
37
|
20
|
29
|
52
|
27
|
23
|
43
|
36
|
37
|
36
|
32
|
29
|
21
|
16
|
12
|
14
|
14
|
17
|
19
|
20
|
39
|
49
|
44
|
43
|
21
|
13
|
23
|
16
|
|
2025/04
|
42
|
43
|
47
|
59
|
61
|
62
|
58
|
56
|
56
|
36
|
41
|
137
|
179
|
120
|
77
|
67
|
71
|
58
|
22
|
18
|
28
|
25
|
35
|
27
|
22
|
22
|
21
|
29
|
49
|
48
|
|
|
2025/03
|
29
|
25
|
25
|
16
|
17
|
22
|
40
|
37
|
37
|
39
|
40
|
42
|
34
|
20
|
15
|
33
|
48
|
34
|
38
|
41
|
43
|
46
|
56
|
61
|
64
|
59
|
52
|
66
|
35
|
14
|
32
|
|
2025/02
|
24
|
13
|
23
|
38
|
45
|
48
|
39
|
62
|
35
|
41
|
48
|
50
|
64
|
75
|
65
|
36
|
40
|
35
|
32
|
16
|
25
|
17
|
18
|
40
|
63
|
70
|
49
|
37
|
|||
|
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