Air Quality
Excellent
No health implications.
17
PM2.5
27
PM10
37
O3
1.0
CO
8
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
13 Apr
52
Good
Tue
14 Apr
55
Good
Wed
15 Apr
54
Good
Thu
16 Apr
52
Good
Fri
17 Apr
57
Good
Sat
18 Apr
53
Good
Sun
19 Apr
24
Excellent
Air quality in the last 12 months (Guidong)
|
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
|
|
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
|
|
|
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