Air Quality
Excellent
No health implications.
25
PM2.5
32
PM10
114
O3
0.8
CO
7
SO2
13
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
19 Apr
59
Good
Mon
20 Apr
75
Good
Tue
21 Apr
64
Good
Wed
22 Apr
63
Good
Thu
23 Apr
54
Good
Fri
24 Apr
58
Good
Sat
25 Apr
37
Excellent
Air quality in the last 12 months (Chao'an)
|
2026/03
|
23
|
51
|
28
|
34
|
35
|
27
|
45
|
35
|
36
|
37
|
42
|
53
|
45
|
43
|
38
|
40
|
36
|
46
|
50
|
35
|
38
|
42
|
43
|
40
|
55
|
37
|
39
|
33
|
40
|
47
|
44
|
|
2026/02
|
29
|
33
|
45
|
51
|
57
|
51
|
35
|
39
|
38
|
36
|
49
|
43
|
48
|
45
|
39
|
38
|
36
|
38
|
38
|
55
|
59
|
66
|
60
|
77
|
44
|
24
|
48
|
12
|
|||
|
2026/01
|
39
|
24
|
33
|
51
|
51
|
30
|
45
|
49
|
51
|
57
|
59
|
60
|
68
|
57
|
59
|
64
|
67
|
59
|
62
|
35
|
39
|
41
|
45
|
45
|
38
|
58
|
57
|
30
|
39
|
45
|
33
|
|
2025/12
|
35
|
44
|
43
|
49
|
42
|
41
|
51
|
55
|
49
|
43
|
49
|
47
|
44
|
36
|
45
|
53
|
61
|
53
|
58
|
50
|
78
|
40
|
40
|
44
|
31
|
27
|
35
|
44
|
46
|
52
|
40
|
|
2025/11
|
29
|
39
|
44
|
23
|
21
|
34
|
31
|
35
|
45
|
27
|
27
|
20
|
19
|
27
|
43
|
44
|
44
|
37
|
24
|
39
|
41
|
50
|
57
|
60
|
42
|
62
|
55
|
64
|
73
|
59
|
|
|
2025/10
|
23
|
23
|
28
|
30
|
19
|
20
|
35
|
33
|
33
|
27
|
28
|
25
|
19
|
23
|
25
|
34
|
36
|
38
|
32
|
23
|
15
|
19
|
25
|
34
|
34
|
47
|
44
|
41
|
29
|
38
|
39
|
|
2025/09
|
27
|
35
|
35
|
28
|
22
|
27
|
15
|
15
|
17
|
22
|
24
|
24
|
23
|
22
|
20
|
26
|
22
|
22
|
12
|
14
|
18
|
24
|
22
|
22
|
23
|
28
|
26
|
24
|
32
|
32
|
|
|
2025/08
|
24
|
21
|
17
|
11
|
13
|
26
|
38
|
39
|
21
|
16
|
13
|
22
|
32
|
12
|
22
|
26
|
20
|
14
|
13
|
28
|
29
|
35
|
28
|
20
|
27
|
22
|
22
|
23
|
24
|
17
|
30
|
|
2025/07
|
15
|
19
|
22
|
27
|
13
|
19
|
39
|
38
|
29
|
13
|
10
|
32
|
34
|
34
|
30
|
36
|
37
|
26
|
22
|
21
|
19
|
13
|
24
|
32
|
25
|
29
|
36
|
29
|
23
|
33
|
25
|
|
2025/06
|
37
|
27
|
20
|
19
|
33
|
31
|
34
|
24
|
22
|
17
|
21
|
23
|
16
|
27
|
26
|
15
|
17
|
24
|
14
|
13
|
14
|
17
|
21
|
18
|
19
|
15
|
13
|
13
|
11
|
13
|
|
|
2025/05
|
54
|
57
|
49
|
36
|
39
|
33
|
33
|
50
|
40
|
28
|
27
|
41
|
40
|
41
|
29
|
20
|
21
|
24
|
27
|
24
|
21
|
27
|
22
|
23
|
21
|
33
|
36
|
30
|
13
|
23
|
34
|
|
2025/04
|
23
|
40
|
51
|
55
|
38
|
50
|
66
|
68
|
63
|
41
|
49
|
47
|
121
|
101
|
101
|
79
|
62
|
57
|
36
|
40
|
36
|
32
|
33
|
33
|
15
|
20
|
36
|
49
|
40
|
45
|
|
|
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