Air Quality
Excellent
No health implications.
6
PM2.5
10
PM10
58
O3
0.5
CO
4
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
14 Mar
55
Good
Sat
15 Mar
55
Good
Sun
16 Mar
54
Good
Mon
17 Mar
56
Good
Tue
18 Mar
61
Good
Wed
19 Mar
51
Good
Thu
20 Mar
81
Good
Air quality in the last 12 months (Chao'an)
|
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
|
|
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
|
||
|
1
|
2
|
3
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4
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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