Air Quality
Excellent
No health implications.
11
PM2.5
18
PM10
24
O3
0.6
CO
3
SO2
8
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
4 Feb
58
Good
Wed
5 Feb
62
Good
Thu
6 Feb
57
Good
Fri
7 Feb
55
Good
Sat
8 Feb
52
Good
Sun
9 Feb
58
Good
Mon
10 Feb
64
Good
Air quality in the last 12 months (Chao'an)
|
2024/12
|
55
|
64
|
60
|
42
|
42
|
39
|
46
|
36
|
42
|
34
|
42
|
32
|
32
|
51
|
50
|
51
|
56
|
53
|
52
|
48
|
48
|
61
|
54
|
45
|
41
|
46
|
59
|
81
|
64
|
62
|
75
|
|
2024/11
|
26
|
19
|
30
|
43
|
43
|
42
|
31
|
34
|
30
|
34
|
40
|
35
|
24
|
25
|
40
|
24
|
28
|
23
|
15
|
11
|
14
|
27
|
31
|
29
|
29
|
20
|
30
|
33
|
37
|
50
|
|
|
2024/10
|
20
|
21
|
30
|
26
|
26
|
35
|
31
|
22
|
31
|
35
|
44
|
40
|
35
|
35
|
29
|
28
|
30
|
41
|
46
|
24
|
24
|
36
|
31
|
34
|
38
|
37
|
48
|
25
|
26
|
47
|
39
|
|
2024/09
|
31
|
40
|
39
|
31
|
26
|
14
|
15
|
13
|
18
|
30
|
53
|
38
|
31
|
33
|
23
|
27
|
29
|
25
|
30
|
18
|
14
|
17
|
13
|
15
|
26
|
32
|
32
|
22
|
35
|
34
|
|
|
2024/08
|
25
|
28
|
33
|
39
|
40
|
35
|
37
|
41
|
40
|
32
|
32
|
33
|
30
|
24
|
28
|
25
|
14
|
19
|
13
|
11
|
14
|
27
|
25
|
27
|
42
|
37
|
44
|
41
|
37
|
24
|
21
|
|
2024/07
|
23
|
20
|
13
|
17
|
15
|
16
|
15
|
14
|
16
|
19
|
18
|
20
|
19
|
18
|
16
|
16
|
14
|
15
|
16
|
19
|
16
|
17
|
34
|
31
|
35
|
12
|
19
|
18
|
20
|
17
|
21
|
|
2024/06
|
19
|
11
|
17
|
25
|
24
|
33
|
17
|
20
|
23
|
20
|
16
|
24
|
22
|
24
|
26
|
17
|
17
|
16
|
15
|
15
|
19
|
26
|
24
|
12
|
15
|
17
|
17
|
18
|
18
|
29
|
|
|
2024/05
|
30
|
20
|
25
|
29
|
25
|
37
|
38
|
44
|
43
|
33
|
43
|
40
|
30
|
34
|
39
|
52
|
32
|
45
|
38
|
21
|
15
|
13
|
15
|
14
|
20
|
25
|
23
|
25
|
29
|
27
|
31
|
|
2024/04
|
26
|
43
|
31
|
42
|
31
|
23
|
18
|
41
|
20
|
40
|
44
|
53
|
51
|
36
|
47
|
48
|
33
|
26
|
41
|
46
|
27
|
36
|
28
|
30
|
27
|
26
|
19
|
22
|
32
|
20
|
|
|
2024/03
|
16
|
22
|
37
|
45
|
85
|
64
|
28
|
55
|
55
|
45
|
44
|
33
|
63
|
72
|
83
|
85
|
91
|
50
|
56
|
56
|
57
|
56
|
60
|
39
|
38
|
43
|
39
|
53
|
55
|
55
|
31
|
|
2024/02
|
58
|
37
|
33
|
32
|
33
|
26
|
23
|
10
|
24
|
69
|
70
|
56
|
61
|
75
|
65
|
44
|
34
|
43
|
39
|
35
|
20
|
24
|
23
|
38
|
43
|
42
|
36
|
36
|
56
|
||
|
2024/01
|
70
|
61
|
53
|
38
|
57
|
72
|
68
|
65
|
55
|
44
|
65
|
78
|
66
|
47
|
63
|
42
|
36
|
49
|
59
|
45
|
27
|
24
|
17
|
32
|
44
|
55
|
66
|
60
|
72
|
60
|
65
|
|
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