Air Quality
Excellent
No health implications.
5
PM2.5
7
PM10
31
O3
0.6
CO
6
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
13 Nov
51
Good
Fri
14 Nov
55
Good
Sat
15 Nov
55
Good
Sun
16 Nov
52
Good
Mon
17 Nov
49
Excellent
Tue
18 Nov
30
Excellent
Wed
19 Nov
19
Excellent
Air quality in the last 12 months (Chao'an)
|
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
|
|
|
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
|
|
|
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