Air Quality
Excellent
No health implications.
17
PM2.5
35
PM10
5
O3
0.8
CO
7
SO2
29
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
10 May
53
Good
Sun
11 May
67
Good
Mon
12 May
90
Good
Tue
13 May
76
Good
Wed
14 May
57
Good
Thu
15 May
16
Excellent
Fri
16 May
15
Excellent
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