Air Quality
Excellent
No health implications.
24
PM2.5
32
PM10
20
O3
0.7
CO
3
SO2
14
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
19 Apr
56
Good
Sun
20 Apr
58
Good
Mon
21 Apr
64
Good
Tue
22 Apr
57
Good
Wed
23 Apr
54
Good
Thu
24 Apr
57
Good
Fri
25 Apr
24
Excellent
Chao'an Air quality rank
Air quality in the last 12 months (Chao'an)
|
2025/02
|
59
|
24
|
13
|
29
|
54
|
41
|
21
|
37
|
43
|
37
|
50
|
66
|
64
|
40
|
51
|
85
|
55
|
54
|
29
|
30
|
27
|
25
|
35
|
29
|
51
|
59
|
68
|
106
|
|||
|
2025/01
|
53
|
63
|
62
|
51
|
58
|
60
|
56
|
56
|
59
|
51
|
48
|
44
|
51
|
56
|
76
|
92
|
57
|
50
|
60
|
58
|
56
|
65
|
66
|
34
|
32
|
29
|
27
|
39
|
60
|
44
|
47
|
|
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
|
|
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