Air Quality
Excellent
No health implications.
6
PM2.5
15
PM10
30
O3
0.5
CO
3
SO2
3
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
8 Sep
49
Excellent
Tue
9 Sep
51
Good
Wed
10 Sep
48
Excellent
Thu
11 Sep
59
Good
Fri
12 Sep
56
Good
Sat
13 Sep
58
Good
Sun
14 Sep
33
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