Air Quality
Excellent
No health implications.
16
PM2.5
24
PM10
30
O3
0.9
CO
6
SO2
32
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
28 Apr
61
Good
Tue
29 Apr
85
Good
Wed
30 Apr
82
Good
Thu
1 May
70
Good
Fri
2 May
89
Good
Sat
3 May
78
Good
Sun
4 May
38
Excellent
Air quality in the last 12 months (Baiyun)
|
2025/02
|
33
|
34
|
11
|
34
|
40
|
47
|
21
|
55
|
31
|
49
|
49
|
44
|
44
|
48
|
32
|
62
|
42
|
56
|
46
|
46
|
36
|
35
|
20
|
33
|
45
|
45
|
55
|
38
|
|||
|
2025/01
|
70
|
72
|
60
|
64
|
86
|
85
|
77
|
72
|
66
|
49
|
42
|
48
|
63
|
73
|
63
|
57
|
53
|
60
|
64
|
61
|
75
|
55
|
64
|
43
|
30
|
19
|
28
|
41
|
61
|
54
|
30
|
|
2024/12
|
65
|
75
|
68
|
60
|
62
|
68
|
48
|
37
|
56
|
57
|
55
|
32
|
48
|
63
|
48
|
47
|
59
|
49
|
60
|
63
|
53
|
64
|
74
|
69
|
60
|
63
|
74
|
68
|
78
|
87
|
77
|
|
2024/11
|
48
|
36
|
47
|
49
|
40
|
55
|
46
|
45
|
50
|
53
|
47
|
42
|
39
|
26
|
16
|
14
|
25
|
26
|
21
|
23
|
24
|
34
|
35
|
40
|
25
|
25
|
36
|
43
|
41
|
52
|
|
|
2024/10
|
37
|
32
|
41
|
36
|
42
|
41
|
49
|
72
|
51
|
34
|
42
|
58
|
53
|
42
|
46
|
38
|
35
|
44
|
48
|
35
|
29
|
29
|
31
|
42
|
45
|
38
|
26
|
20
|
27
|
44
|
44
|
|
2024/09
|
35
|
40
|
34
|
37
|
27
|
12
|
18
|
18
|
21
|
31
|
50
|
52
|
38
|
37
|
22
|
27
|
36
|
20
|
34
|
28
|
17
|
18
|
21
|
19
|
39
|
47
|
43
|
51
|
44
|
39
|
|
|
2024/08
|
28
|
34
|
31
|
42
|
42
|
45
|
51
|
44
|
32
|
34
|
30
|
33
|
35
|
34
|
23
|
25
|
20
|
22
|
26
|
30
|
20
|
22
|
36
|
45
|
29
|
38
|
41
|
49
|
30
|
31
|
25
|
|
2024/07
|
40
|
27
|
18
|
18
|
27
|
20
|
16
|
22
|
24
|
19
|
19
|
20
|
18
|
27
|
21
|
21
|
20
|
18
|
17
|
21
|
23
|
23
|
21
|
26
|
36
|
38
|
22
|
15
|
17
|
15
|
19
|
|
2024/06
|
12
|
23
|
31
|
30
|
32
|
17
|
25
|
24
|
21
|
19
|
23
|
29
|
26
|
26
|
21
|
23
|
28
|
25
|
27
|
28
|
22
|
32
|
13
|
15
|
17
|
27
|
24
|
21
|
20
|
23
|
|
|
2024/05
|
22
|
26
|
41
|
26
|
31
|
43
|
37
|
27
|
45
|
46
|
42
|
33
|
40
|
49
|
52
|
56
|
57
|
41
|
30
|
18
|
15
|
27
|
39
|
19
|
25
|
21
|
24
|
21
|
27
|
36
|
18
|
|
2024/04
|
45
|
49
|
34
|
32
|
20
|
26
|
21
|
22
|
27
|
42
|
52
|
53
|
53
|
37
|
42
|
40
|
39
|
36
|
32
|
23
|
20
|
36
|
32
|
40
|
21
|
32
|
39
|
25
|
27
|
25
|
|
|
2024/03
|
24
|
28
|
47
|
46
|
35
|
41
|
35
|
44
|
47
|
19
|
21
|
37
|
59
|
60
|
58
|
67
|
57
|
54
|
24
|
70
|
58
|
55
|
49
|
43
|
40
|
48
|
42
|
46
|
53
|
39
|
42
|
|
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