Air Quality
Excellent
No health implications.
18
PM2.5
23
PM10
32
O3
0.6
CO
3
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
8 Jan
34
Excellent
Fri
9 Jan
34
Excellent
Sat
10 Jan
32
Excellent
Sun
11 Jan
34
Excellent
Mon
12 Jan
39
Excellent
Tue
13 Jan
50
Excellent
Wed
14 Jan
22
Excellent
Chengjiang Air quality rank
Air quality in the last 12 months (Chengjiang)
|
2025/11
|
25
|
10
|
8
|
13
|
14
|
12
|
17
|
26
|
11
|
11
|
14
|
19
|
25
|
24
|
28
|
34
|
28
|
23
|
18
|
32
|
42
|
34
|
27
|
41
|
40
|
54
|
45
|
49
|
46
|
44
|
|
|
2025/10
|
8
|
11
|
13
|
13
|
15
|
21
|
8
|
8
|
12
|
15
|
19
|
19
|
23
|
29
|
24
|
16
|
15
|
21
|
24
|
29
|
15
|
18
|
18
|
31
|
31
|
24
|
25
|
28
|
23
|
28
|
37
|
|
2025/09
|
21
|
21
|
16
|
16
|
16
|
20
|
25
|
24
|
17
|
18
|
15
|
13
|
12
|
9
|
13
|
15
|
17
|
22
|
19
|
24
|
18
|
20
|
13
|
11
|
23
|
8
|
9
|
14
|
8
|
7
|
|
|
2025/08
|
31
|
29
|
18
|
16
|
29
|
26
|
14
|
8
|
12
|
15
|
16
|
19
|
16
|
34
|
30
|
11
|
12
|
19
|
26
|
19
|
10
|
8
|
9
|
14
|
12
|
9
|
9
|
14
|
12
|
13
|
19
|
|
2025/07
|
13
|
8
|
12
|
15
|
17
|
16
|
20
|
11
|
18
|
17
|
22
|
25
|
34
|
24
|
31
|
31
|
25
|
29
|
18
|
23
|
18
|
11
|
10
|
11
|
11
|
13
|
16
|
22
|
36
|
30
|
16
|
|
2025/06
|
12
|
15
|
16
|
18
|
24
|
31
|
32
|
33
|
24
|
32
|
34
|
36
|
42
|
39
|
16
|
21
|
12
|
9
|
13
|
13
|
17
|
9
|
12
|
9
|
10
|
12
|
15
|
13
|
12
|
14
|
|
|
2025/05
|
35
|
24
|
21
|
16
|
22
|
26
|
26
|
31
|
43
|
34
|
19
|
26
|
28
|
28
|
24
|
22
|
29
|
22
|
34
|
24
|
32
|
30
|
51
|
32
|
18
|
14
|
13
|
13
|
9
|
11
|
11
|
|
2025/04
|
31
|
56
|
85
|
84
|
89
|
75
|
70
|
64
|
58
|
67
|
56
|
43
|
73
|
58
|
51
|
22
|
22
|
29
|
32
|
35
|
30
|
25
|
38
|
48
|
48
|
57
|
61
|
59
|
30
|
31
|
|
|
2025/03
|
40
|
43
|
48
|
45
|
53
|
48
|
36
|
53
|
45
|
37
|
52
|
61
|
60
|
65
|
55
|
39
|
33
|
20
|
33
|
46
|
65
|
65
|
54
|
43
|
41
|
46
|
49
|
88
|
108
|
73
|
63
|
|
2025/02
|
44
|
48
|
28
|
40
|
49
|
47
|
32
|
39
|
45
|
34
|
39
|
46
|
54
|
54
|
57
|
57
|
42
|
40
|
42
|
49
|
58
|
49
|
53
|
27
|
29
|
24
|
28
|
38
|
|||
|
2025/01
|
31
|
35
|
45
|
38
|
36
|
49
|
38
|
36
|
43
|
27
|
23
|
44
|
35
|
44
|
78
|
71
|
48
|
35
|
64
|
44
|
45
|
38
|
32
|
23
|
25
|
29
|
42
|
52
|
72
|
32
|
31
|
|
2024/12
|
20
|
22
|
20
|
19
|
19
|
19
|
22
|
30
|
16
|
21
|
30
|
24
|
32
|
38
|
38
|
34
|
23
|
30
|
39
|
31
|
32
|
30
|
30
|
33
|
34
|
40
|
43
|
36
|
32
|
24
|
41
|
|
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