Air Quality
Excellent
No health implications.
3
PM2.5
7
PM10
27
O3
0.4
CO
1
SO2
4
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
15 Nov
59
Good
Sat
16 Nov
64
Good
Sun
17 Nov
58
Good
Mon
18 Nov
58
Good
Tue
19 Nov
58
Good
Wed
20 Nov
58
Good
Air quality in the last 12 months (Chengxiang)
|
2024/10
|
10
|
8
|
13
|
10
|
9
|
16
|
15
|
10
|
27
|
42
|
41
|
33
|
23
|
34
|
24
|
22
|
32
|
37
|
29
|
14
|
23
|
24
|
28
|
31
|
16
|
13
|
18
|
12
|
32
|
35
|
18
|
|
2024/09
|
35
|
35
|
24
|
18
|
22
|
13
|
16
|
20
|
16
|
39
|
52
|
40
|
18
|
16
|
20
|
23
|
19
|
23
|
19
|
21
|
21
|
9
|
8
|
21
|
21
|
18
|
15
|
19
|
22
|
13
|
|
|
2024/08
|
31
|
47
|
57
|
51
|
43
|
29
|
35
|
44
|
47
|
51
|
50
|
51
|
34
|
24
|
21
|
20
|
20
|
23
|
23
|
12
|
21
|
30
|
33
|
42
|
40
|
42
|
63
|
50
|
42
|
46
|
40
|
|
2024/07
|
28
|
24
|
24
|
27
|
31
|
25
|
23
|
24
|
21
|
24
|
29
|
27
|
31
|
30
|
31
|
32
|
27
|
24
|
24
|
28
|
33
|
29
|
18
|
15
|
7
|
9
|
12
|
30
|
20
|
24
|
23
|
|
2024/06
|
13
|
8
|
14
|
25
|
23
|
13
|
27
|
30
|
31
|
28
|
25
|
29
|
29
|
29
|
24
|
15
|
25
|
27
|
36
|
22
|
27
|
35
|
32
|
25
|
27
|
28
|
29
|
23
|
21
|
25
|
|
|
2024/05
|
20
|
21
|
27
|
30
|
36
|
43
|
44
|
43
|
36
|
31
|
46
|
43
|
19
|
24
|
34
|
38
|
30
|
37
|
27
|
14
|
8
|
11
|
28
|
44
|
52
|
30
|
23
|
24
|
24
|
33
|
35
|
|
2024/04
|
33
|
53
|
46
|
37
|
16
|
31
|
20
|
40
|
22
|
47
|
47
|
66
|
53
|
56
|
67
|
60
|
50
|
32
|
60
|
63
|
30
|
40
|
41
|
28
|
54
|
52
|
44
|
30
|
48
|
36
|
|
|
2024/03
|
16
|
31
|
41
|
54
|
65
|
32
|
40
|
62
|
61
|
53
|
61
|
42
|
59
|
54
|
37
|
52
|
71
|
44
|
41
|
50
|
52
|
61
|
54
|
45
|
37
|
37
|
30
|
61
|
46
|
57
|
34
|
|
2024/02
|
61
|
25
|
24
|
23
|
27
|
23
|
18
|
25
|
64
|
91
|
49
|
49
|
62
|
103
|
97
|
24
|
36
|
88
|
62
|
47
|
57
|
28
|
17
|
29
|
44
|
32
|
28
|
44
|
61
|
||
|
2024/01
|
83
|
63
|
44
|
39
|
48
|
59
|
92
|
54
|
61
|
52
|
93
|
92
|
49
|
32
|
78
|
43
|
34
|
42
|
47
|
30
|
20
|
21
|
21
|
25
|
36
|
61
|
74
|
86
|
38
|
32
|
45
|
|
2023/12
|
41
|
34
|
26
|
24
|
31
|
32
|
34
|
46
|
58
|
59
|
86
|
31
|
19
|
31
|
82
|
31
|
24
|
22
|
21
|
17
|
38
|
39
|
22
|
29
|
39
|
41
|
36
|
36
|
37
|
60
|
73
|
|
2023/11
|
28
|
31
|
31
|
34
|
55
|
54
|
32
|
33
|
37
|
34
|
22
|
23
|
23
|
25
|
25
|
22
|
50
|
57
|
44
|
41
|
34
|
33
|
34
|
69
|
35
|
29
|
43
|
50
|
51
|
58
|
|
|
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