Air Quality
Excellent
No health implications.
6
PM2.5
12
PM10
45
O3
0.4
CO
4
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
16 May
52
Good
Sun
17 May
53
Good
Mon
18 May
55
Good
Tue
19 May
59
Good
Wed
20 May
54
Good
Thu
21 May
52
Good
Fri
22 May
26
Excellent
Air quality in the last 12 months (Guidong)
|
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
|
|
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
|
|
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