Air Quality
Excellent
No health implications.
4
PM2.5
12
PM10
32
O3
0.5
CO
5
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 Oct
51
Good
Fri
24 Oct
48
Excellent
Sat
25 Oct
51
Good
Sun
26 Oct
49
Excellent
Mon
27 Oct
49
Excellent
Tue
28 Oct
22
Excellent
Wed
29 Oct
18
Excellent
Air quality in the last 12 months (Chao'an)
|
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
|
|
|
2025/03
|
103
|
42
|
34
|
32
|
15
|
17
|
22
|
30
|
38
|
44
|
59
|
84
|
65
|
25
|
46
|
14
|
41
|
56
|
47
|
51
|
56
|
54
|
65
|
74
|
69
|
49
|
27
|
52
|
30
|
12
|
12
|
|
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
|
|
|
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