Air Quality
Excellent
No health implications.
6
PM2.5
19
PM10
23
O3
0.4
CO
3
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
17 Jun
47
Excellent
Thu
18 Jun
45
Excellent
Fri
19 Jun
59
Good
Sat
20 Jun
50
Excellent
Sun
21 Jun
45
Excellent
Mon
22 Jun
20
Excellent
Tue
23 Jun
29
Excellent
Air quality in the last 12 months (Chengxiang)
|
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
|
|
2025/06
|
49
|
49
|
16
|
21
|
29
|
33
|
35
|
41
|
33
|
31
|
24
|
14
|
16
|
18
|
22
|
30
|
28
|
32
|
21
|
24
|
22
|
32
|
41
|
32
|
31
|
25
|
24
|
26
|
28
|
19
|
|
|
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