Air Quality
Excellent
No health implications.
20
PM2.5
27
PM10
86
O3
0.4
CO
6
SO2
15
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
7 May
56
Good
Thu
8 May
57
Good
Fri
9 May
64
Good
Sat
10 May
38
Excellent
Sun
11 May
63
Good
Mon
12 May
47
Excellent
Tue
13 May
20
Excellent
Air quality in the last 12 months (Guandu)
|
2025/02
|
46
|
49
|
27
|
40
|
48
|
49
|
33
|
39
|
47
|
34
|
36
|
54
|
55
|
54
|
55
|
64
|
38
|
41
|
48
|
51
|
58
|
53
|
58
|
33
|
32
|
29
|
35
|
39
|
|||
|
2025/01
|
36
|
43
|
46
|
41
|
39
|
49
|
34
|
29
|
43
|
27
|
20
|
45
|
40
|
43
|
72
|
74
|
43
|
37
|
66
|
48
|
42
|
36
|
33
|
22
|
23
|
32
|
42
|
55
|
76
|
33
|
30
|
|
2024/12
|
19
|
31
|
23
|
21
|
33
|
27
|
28
|
39
|
15
|
21
|
29
|
26
|
48
|
42
|
39
|
29
|
26
|
33
|
35
|
25
|
27
|
22
|
29
|
29
|
28
|
38
|
41
|
39
|
30
|
26
|
47
|
|
2024/11
|
27
|
30
|
51
|
37
|
45
|
51
|
39
|
21
|
23
|
37
|
30
|
20
|
24
|
33
|
41
|
33
|
39
|
37
|
36
|
29
|
16
|
24
|
18
|
15
|
23
|
34
|
27
|
34
|
25
|
18
|
|
|
2024/10
|
11
|
21
|
30
|
24
|
16
|
24
|
36
|
32
|
28
|
16
|
18
|
20
|
22
|
30
|
26
|
18
|
17
|
36
|
45
|
27
|
23
|
26
|
30
|
43
|
44
|
39
|
48
|
44
|
55
|
47
|
41
|
|
2024/09
|
27
|
29
|
24
|
23
|
19
|
38
|
32
|
13
|
11
|
13
|
18
|
21
|
33
|
40
|
35
|
21
|
21
|
22
|
28
|
36
|
34
|
20
|
25
|
43
|
37
|
40
|
28
|
18
|
19
|
25
|
|
|
2024/08
|
35
|
29
|
21
|
18
|
14
|
14
|
16
|
17
|
12
|
25
|
33
|
46
|
55
|
48
|
39
|
37
|
35
|
38
|
34
|
45
|
38
|
21
|
16
|
20
|
26
|
13
|
18
|
26
|
30
|
31
|
29
|
|
2024/07
|
13
|
22
|
11
|
8
|
12
|
12
|
11
|
11
|
15
|
14
|
11
|
12
|
13
|
12
|
17
|
15
|
17
|
16
|
16
|
17
|
12
|
11
|
20
|
23
|
21
|
24
|
31
|
24
|
23
|
16
|
21
|
|
2024/06
|
37
|
22
|
29
|
32
|
18
|
16
|
15
|
13
|
16
|
13
|
16
|
18
|
9
|
17
|
28
|
17
|
24
|
23
|
25
|
32
|
23
|
21
|
16
|
20
|
20
|
17
|
12
|
10
|
19
|
13
|
|
|
2024/05
|
53
|
45
|
27
|
52
|
49
|
37
|
40
|
44
|
23
|
22
|
23
|
30
|
23
|
31
|
28
|
21
|
27
|
31
|
26
|
21
|
31
|
35
|
33
|
31
|
21
|
8
|
11
|
15
|
16
|
27
|
20
|
|
2024/04
|
29
|
39
|
54
|
51
|
53
|
69
|
59
|
58
|
58
|
60
|
70
|
69
|
50
|
39
|
52
|
66
|
73
|
50
|
40
|
38
|
33
|
45
|
53
|
46
|
46
|
46
|
54
|
60
|
47
|
54
|
|
|
2024/03
|
45
|
52
|
32
|
39
|
26
|
29
|
34
|
55
|
43
|
52
|
36
|
65
|
55
|
51
|
53
|
53
|
65
|
47
|
55
|
59
|
52
|
36
|
23
|
30
|
32
|
46
|
51
|
47
|
48
|
56
|
50
|
|
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