Air Quality
Excellent
No health implications.
4
PM2.5
13
PM10
32
O3
0.3
CO
5
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
27 Apr
40
Excellent
Mon
28 Apr
56
Good
Tue
29 Apr
41
Excellent
Wed
30 Apr
65
Good
Thu
1 May
86
Good
Fri
2 May
16
Excellent
Sat
3 May
46
Excellent
Air quality in the last 12 months (Baiyun)
|
2025/02
|
19
|
16
|
27
|
34
|
37
|
18
|
22
|
49
|
59
|
39
|
29
|
44
|
39
|
20
|
30
|
52
|
30
|
29
|
16
|
15
|
15
|
11
|
16
|
20
|
22
|
43
|
29
|
36
|
|||
|
2025/01
|
60
|
76
|
69
|
66
|
65
|
63
|
57
|
39
|
28
|
29
|
42
|
49
|
42
|
61
|
58
|
76
|
63
|
56
|
49
|
75
|
73
|
76
|
58
|
45
|
14
|
20
|
39
|
42
|
55
|
47
|
35
|
|
2024/12
|
60
|
85
|
44
|
34
|
16
|
18
|
23
|
38
|
14
|
12
|
20
|
36
|
43
|
63
|
55
|
57
|
57
|
49
|
63
|
86
|
113
|
65
|
70
|
58
|
55
|
33
|
52
|
74
|
58
|
30
|
42
|
|
2024/11
|
38
|
22
|
48
|
49
|
43
|
49
|
50
|
41
|
46
|
34
|
30
|
26
|
33
|
41
|
44
|
44
|
39
|
11
|
11
|
13
|
15
|
26
|
29
|
29
|
8
|
20
|
26
|
27
|
34
|
42
|
|
|
2024/10
|
6
|
12
|
31
|
37
|
43
|
49
|
24
|
23
|
30
|
48
|
50
|
43
|
24
|
18
|
29
|
24
|
12
|
20
|
15
|
13
|
20
|
13
|
27
|
23
|
19
|
32
|
43
|
35
|
27
|
35
|
41
|
|
2024/09
|
19
|
15
|
13
|
16
|
21
|
29
|
18
|
10
|
12
|
20
|
18
|
23
|
23
|
26
|
18
|
24
|
14
|
17
|
21
|
25
|
23
|
17
|
31
|
30
|
41
|
42
|
37
|
36
|
19
|
11
|
|
|
2024/08
|
9
|
7
|
8
|
9
|
14
|
14
|
15
|
16
|
16
|
16
|
34
|
52
|
47
|
33
|
29
|
27
|
22
|
24
|
33
|
27
|
22
|
14
|
10
|
17
|
9
|
12
|
16
|
17
|
27
|
24
|
17
|
|
2024/07
|
15
|
20
|
12
|
10
|
11
|
11
|
14
|
13
|
15
|
15
|
12
|
13
|
14
|
11
|
9
|
12
|
10
|
9
|
6
|
8
|
9
|
10
|
10
|
11
|
17
|
26
|
28
|
26
|
11
|
11
|
10
|
|
2024/06
|
25
|
25
|
11
|
12
|
23
|
19
|
12
|
10
|
9
|
13
|
19
|
13
|
21
|
23
|
28
|
25
|
9
|
21
|
14
|
19
|
19
|
9
|
15
|
19
|
18
|
9
|
8
|
10
|
8
|
24
|
|
|
2024/05
|
17
|
15
|
13
|
13
|
28
|
30
|
16
|
22
|
18
|
16
|
15
|
13
|
21
|
30
|
39
|
35
|
28
|
12
|
20
|
22
|
16
|
24
|
32
|
27
|
27
|
15
|
28
|
24
|
17
|
13
|
24
|
|
2024/04
|
43
|
42
|
42
|
19
|
16
|
15
|
17
|
21
|
32
|
38
|
37
|
39
|
53
|
53
|
59
|
61
|
44
|
24
|
21
|
19
|
27
|
45
|
24
|
35
|
30
|
41
|
28
|
44
|
52
|
16
|
|
|
2024/03
|
36
|
55
|
33
|
34
|
33
|
24
|
57
|
51
|
37
|
49
|
46
|
43
|
37
|
43
|
27
|
34
|
40
|
17
|
37
|
65
|
60
|
51
|
40
|
48
|
32
|
37
|
49
|
27
|
40
|
45
|
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