Air Quality
Excellent
No health implications.
22
PM2.5
37
PM10
2
O3
0.9
CO
4
SO2
56
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
22 May
56
Good
Fri
23 May
56
Good
Sat
24 May
49
Excellent
Sun
25 May
74
Good
Mon
26 May
72
Good
Tue
27 May
112
Light
Wed
28 May
48
Excellent
Air quality in the last 12 months (Huadu)
|
2025/04
|
29
|
44
|
72
|
68
|
50
|
68
|
86
|
71
|
65
|
55
|
48
|
54
|
235
|
169
|
106
|
109
|
74
|
67
|
43
|
39
|
36
|
41
|
42
|
22
|
14
|
32
|
37
|
23
|
44
|
55
|
|
|
2025/03
|
37
|
40
|
48
|
25
|
14
|
11
|
25
|
30
|
55
|
67
|
49
|
46
|
42
|
45
|
20
|
14
|
53
|
37
|
40
|
51
|
69
|
74
|
83
|
84
|
72
|
55
|
47
|
42
|
14
|
10
|
15
|
|
2025/02
|
61
|
41
|
10
|
32
|
41
|
39
|
21
|
51
|
26
|
46
|
53
|
61
|
38
|
54
|
48
|
57
|
40
|
47
|
51
|
55
|
27
|
35
|
16
|
30
|
50
|
56
|
65
|
59
|
|||
|
2025/01
|
78
|
71
|
60
|
65
|
80
|
80
|
76
|
67
|
62
|
43
|
36
|
45
|
65
|
72
|
59
|
57
|
51
|
59
|
60
|
64
|
77
|
65
|
73
|
43
|
32
|
19
|
27
|
47
|
68
|
100
|
55
|
|
2024/12
|
66
|
75
|
66
|
62
|
68
|
67
|
42
|
31
|
61
|
59
|
52
|
24
|
35
|
60
|
48
|
44
|
51
|
40
|
58
|
55
|
45
|
58
|
65
|
63
|
53
|
63
|
80
|
74
|
77
|
89
|
72
|
|
2024/11
|
41
|
37
|
44
|
50
|
36
|
52
|
39
|
39
|
46
|
52
|
40
|
34
|
41
|
28
|
15
|
21
|
25
|
19
|
16
|
23
|
28
|
30
|
32
|
42
|
25
|
16
|
31
|
37
|
35
|
45
|
|
|
2024/10
|
26
|
20
|
36
|
32
|
37
|
39
|
45
|
69
|
49
|
25
|
38
|
55
|
59
|
58
|
52
|
46
|
44
|
52
|
42
|
26
|
26
|
24
|
19
|
29
|
37
|
41
|
31
|
14
|
22
|
36
|
39
|
|
2024/09
|
32
|
46
|
33
|
31
|
28
|
13
|
14
|
17
|
19
|
27
|
46
|
43
|
33
|
28
|
14
|
25
|
33
|
24
|
40
|
28
|
18
|
14
|
17
|
16
|
31
|
37
|
40
|
42
|
45
|
37
|
|
|
2024/08
|
29
|
37
|
34
|
40
|
47
|
51
|
53
|
43
|
36
|
31
|
30
|
41
|
32
|
36
|
20
|
26
|
22
|
20
|
24
|
32
|
19
|
24
|
37
|
48
|
37
|
41
|
43
|
42
|
25
|
28
|
28
|
|
2024/07
|
29
|
27
|
20
|
25
|
28
|
24
|
20
|
26
|
23
|
24
|
27
|
23
|
18
|
35
|
25
|
25
|
27
|
29
|
26
|
26
|
25
|
29
|
36
|
32
|
40
|
38
|
20
|
16
|
19
|
16
|
21
|
|
2024/06
|
12
|
19
|
27
|
24
|
19
|
14
|
23
|
20
|
23
|
20
|
23
|
36
|
30
|
27
|
18
|
23
|
28
|
27
|
31
|
29
|
26
|
36
|
18
|
20
|
19
|
27
|
37
|
21
|
25
|
27
|
|
|
2024/05
|
16
|
24
|
34
|
26
|
33
|
48
|
34
|
26
|
45
|
51
|
47
|
31
|
30
|
61
|
53
|
62
|
66
|
36
|
21
|
13
|
12
|
23
|
30
|
16
|
26
|
24
|
29
|
24
|
21
|
34
|
20
|
|
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