Air Quality
Excellent
No health implications.
7
PM2.5
18
PM10
56
O3
0.5
CO
6
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
20 Apr
45
Excellent
Mon
21 Apr
57
Good
Tue
22 Apr
68
Good
Wed
23 Apr
69
Good
Thu
24 Apr
63
Good
Fri
25 Apr
67
Good
Sat
26 Apr
16
Excellent
Air quality in the last 12 months (Guidong)
|
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
|
|||
|
2025/01
|
94
|
79
|
99
|
105
|
125
|
101
|
77
|
78
|
58
|
45
|
44
|
53
|
53
|
51
|
74
|
60
|
55
|
55
|
61
|
60
|
65
|
63
|
67
|
120
|
60
|
19
|
39
|
53
|
101
|
67
|
54
|
|
2024/12
|
50
|
55
|
55
|
88
|
70
|
41
|
39
|
56
|
81
|
75
|
44
|
48
|
77
|
67
|
50
|
49
|
53
|
57
|
75
|
76
|
79
|
87
|
82
|
84
|
93
|
98
|
107
|
102
|
70
|
79
|
87
|
|
2024/11
|
46
|
58
|
54
|
56
|
61
|
53
|
43
|
44
|
48
|
60
|
47
|
49
|
53
|
53
|
34
|
40
|
33
|
16
|
21
|
33
|
41
|
42
|
43
|
49
|
51
|
27
|
36
|
37
|
39
|
49
|
|
|
2024/10
|
38
|
36
|
40
|
38
|
37
|
49
|
63
|
51
|
43
|
41
|
49
|
54
|
64
|
87
|
66
|
29
|
36
|
40
|
25
|
24
|
32
|
30
|
33
|
36
|
45
|
53
|
28
|
25
|
50
|
49
|
40
|
|
2024/09
|
33
|
36
|
36
|
31
|
33
|
24
|
18
|
19
|
17
|
26
|
34
|
40
|
35
|
41
|
26
|
29
|
38
|
41
|
40
|
28
|
28
|
33
|
36
|
35
|
29
|
31
|
38
|
38
|
36
|
36
|
|
|
2024/08
|
15
|
19
|
28
|
34
|
31
|
29
|
24
|
31
|
30
|
33
|
30
|
22
|
17
|
21
|
23
|
25
|
20
|
22
|
18
|
26
|
25
|
19
|
23
|
27
|
28
|
25
|
32
|
29
|
28
|
35
|
39
|
|
2024/07
|
16
|
16
|
18
|
14
|
14
|
16
|
15
|
16
|
20
|
21
|
19
|
19
|
17
|
18
|
19
|
15
|
12
|
13
|
16
|
15
|
17
|
21
|
22
|
30
|
33
|
24
|
15
|
11
|
13
|
15
|
13
|
|
2024/06
|
14
|
14
|
28
|
16
|
14
|
24
|
27
|
33
|
31
|
22
|
18
|
17
|
19
|
17
|
13
|
13
|
13
|
21
|
19
|
20
|
20
|
25
|
21
|
17
|
16
|
21
|
22
|
18
|
15
|
17
|
|
|
2024/05
|
16
|
24
|
30
|
27
|
19
|
26
|
44
|
48
|
50
|
52
|
32
|
36
|
65
|
53
|
49
|
53
|
51
|
46
|
28
|
20
|
21
|
23
|
21
|
22
|
20
|
21
|
16
|
28
|
30
|
33
|
18
|
|
2024/04
|
36
|
50
|
35
|
20
|
17
|
20
|
23
|
29
|
36
|
36
|
42
|
49
|
46
|
49
|
51
|
48
|
27
|
33
|
22
|
22
|
19
|
26
|
32
|
40
|
27
|
25
|
33
|
29
|
29
|
20
|
|
|
2024/03
|
48
|
43
|
37
|
30
|
32
|
66
|
56
|
53
|
46
|
48
|
34
|
40
|
52
|
37
|
32
|
36
|
46
|
23
|
36
|
59
|
64
|
44
|
38
|
34
|
33
|
26
|
41
|
27
|
34
|
38
|
31
|
|
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