Air Quality
Excellent
No health implications.
3
PM2.5
6
PM10
24
O3
0.4
CO
4
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
10 Aug
30
Excellent
Tue
11 Aug
32
Excellent
Wed
12 Aug
41
Excellent
Thu
13 Aug
54
Good
Fri
14 Aug
42
Excellent
Sat
15 Aug
27
Excellent
Sun
16 Aug
25
Excellent
Air quality in the last 12 months (Chengxiang)
|
2026/06
|
43
|
55
|
52
|
30
|
28
|
46
|
38
|
24
|
26
|
29
|
31
|
31
|
27
|
21
|
21
|
17
|
18
|
23
|
21
|
25
|
39
|
46
|
44
|
35
|
25
|
21
|
21
|
33
|
37
|
24
|
|
|
2026/05
|
33
|
45
|
39
|
28
|
31
|
31
|
36
|
36
|
31
|
30
|
40
|
40
|
26
|
22
|
26
|
31
|
30
|
33
|
35
|
41
|
31
|
37
|
47
|
69
|
40
|
39
|
43
|
29
|
36
|
46
|
44
|
|
2026/04
|
32
|
34
|
26
|
25
|
35
|
52
|
29
|
33
|
39
|
47
|
41
|
32
|
38
|
41
|
37
|
30
|
37
|
35
|
35
|
50
|
38
|
36
|
39
|
22
|
36
|
42
|
52
|
60
|
33
|
24
|
|
|
2026/03
|
40
|
92
|
22
|
26
|
21
|
33
|
42
|
35
|
34
|
40
|
43
|
43
|
42
|
39
|
35
|
32
|
42
|
55
|
31
|
42
|
31
|
38
|
42
|
30
|
47
|
36
|
33
|
31
|
46
|
60
|
53
|
|
2026/02
|
19
|
38
|
48
|
42
|
58
|
59
|
17
|
35
|
32
|
34
|
37
|
50
|
47
|
56
|
47
|
71
|
23
|
35
|
42
|
72
|
84
|
70
|
52
|
77
|
32
|
36
|
55
|
22
|
|||
|
2026/01
|
27
|
22
|
34
|
33
|
38
|
22
|
40
|
40
|
51
|
52
|
49
|
54
|
48
|
42
|
45
|
51
|
50
|
37
|
37
|
24
|
26
|
41
|
23
|
24
|
23
|
40
|
33
|
24
|
38
|
27
|
20
|
|
2025/12
|
39
|
38
|
49
|
39
|
28
|
29
|
31
|
35
|
45
|
32
|
39
|
50
|
35
|
30
|
36
|
39
|
37
|
59
|
54
|
48
|
80
|
25
|
34
|
45
|
22
|
34
|
26
|
25
|
28
|
36
|
37
|
|
2025/11
|
22
|
40
|
47
|
9
|
13
|
21
|
25
|
28
|
25
|
32
|
17
|
7
|
10
|
26
|
41
|
31
|
29
|
23
|
23
|
30
|
31
|
37
|
39
|
40
|
42
|
73
|
47
|
80
|
68
|
49
|
|
|
2025/10
|
31
|
21
|
25
|
27
|
38
|
42
|
26
|
26
|
29
|
26
|
25
|
30
|
40
|
36
|
22
|
25
|
27
|
25
|
18
|
17
|
14
|
14
|
24
|
22
|
24
|
37
|
38
|
21
|
25
|
29
|
25
|
|
2025/09
|
31
|
36
|
43
|
46
|
33
|
15
|
18
|
19
|
20
|
29
|
26
|
36
|
37
|
38
|
28
|
18
|
16
|
16
|
21
|
16
|
19
|
20
|
19
|
21
|
18
|
14
|
20
|
18
|
32
|
33
|
|
|
2025/08
|
32
|
30
|
29
|
21
|
18
|
30
|
41
|
51
|
42
|
29
|
24
|
32
|
25
|
24
|
13
|
13
|
16
|
23
|
24
|
25
|
20
|
31
|
44
|
35
|
19
|
14
|
13
|
16
|
13
|
15
|
21
|
|
2025/07
|
18
|
15
|
23
|
23
|
16
|
18
|
22
|
43
|
37
|
16
|
11
|
20
|
42
|
22
|
38
|
46
|
42
|
23
|
18
|
20
|
13
|
12
|
16
|
14
|
22
|
31
|
32
|
27
|
25
|
45
|
46
|
|
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