Air Quality
Excellent
No health implications.
8
PM2.5
12
PM10
62
O3
0.6
CO
5
SO2
6
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 Nov
33
Excellent
Sun
24 Nov
31
Excellent
Mon
25 Nov
34
Excellent
Tue
26 Nov
33
Excellent
Wed
27 Nov
39
Excellent
Thu
28 Nov
34
Excellent
Fri
29 Nov
38
Excellent
Air quality in the last 12 months (Chengjiang)
|
2024/10
|
16
|
18
|
29
|
25
|
20
|
28
|
39
|
40
|
27
|
16
|
21
|
22
|
22
|
25
|
24
|
16
|
15
|
26
|
36
|
23
|
18
|
25
|
27
|
32
|
27
|
35
|
45
|
49
|
48
|
37
|
28
|
|
2024/09
|
24
|
22
|
26
|
18
|
18
|
31
|
28
|
10
|
10
|
10
|
14
|
13
|
26
|
29
|
32
|
24
|
20
|
22
|
24
|
31
|
27
|
17
|
22
|
39
|
37
|
36
|
28
|
20
|
20
|
22
|
|
|
2024/08
|
37
|
28
|
19
|
16
|
17
|
13
|
14
|
13
|
12
|
17
|
33
|
47
|
53
|
41
|
34
|
33
|
34
|
38
|
31
|
41
|
32
|
19
|
16
|
19
|
20
|
14
|
19
|
24
|
24
|
34
|
29
|
|
2024/07
|
11
|
18
|
14
|
9
|
15
|
15
|
12
|
13
|
13
|
13
|
10
|
13
|
13
|
14
|
16
|
14
|
17
|
15
|
15
|
16
|
12
|
11
|
18
|
23
|
17
|
21
|
26
|
24
|
22
|
14
|
20
|
|
2024/06
|
33
|
23
|
30
|
28
|
16
|
15
|
15
|
18
|
16
|
11
|
17
|
21
|
11
|
17
|
25
|
15
|
25
|
25
|
30
|
34
|
21
|
21
|
17
|
17
|
18
|
12
|
12
|
11
|
12
|
13
|
|
|
2024/05
|
54
|
47
|
29
|
50
|
45
|
35
|
34
|
38
|
24
|
21
|
25
|
31
|
22
|
31
|
26
|
17
|
29
|
31
|
26
|
20
|
31
|
33
|
39
|
29
|
21
|
10
|
12
|
18
|
19
|
28
|
21
|
|
2024/04
|
31
|
41
|
55
|
53
|
54
|
72
|
61
|
58
|
60
|
68
|
74
|
76
|
62
|
47
|
55
|
74
|
83
|
52
|
43
|
38
|
37
|
45
|
50
|
48
|
42
|
45
|
51
|
59
|
49
|
53
|
|
|
2024/03
|
43
|
50
|
38
|
37
|
26
|
30
|
36
|
59
|
52
|
51
|
35
|
66
|
58
|
54
|
56
|
56
|
75
|
53
|
54
|
60
|
54
|
37
|
25
|
32
|
31
|
45
|
52
|
49
|
48
|
62
|
59
|
|
2024/02
|
33
|
45
|
54
|
31
|
40
|
32
|
42
|
44
|
51
|
61
|
64
|
41
|
37
|
28
|
36
|
43
|
30
|
32
|
49
|
54
|
46
|
51
|
60
|
52
|
48
|
39
|
39
|
39
|
37
|
||
|
2024/01
|
32
|
28
|
47
|
32
|
24
|
33
|
30
|
29
|
34
|
41
|
38
|
37
|
40
|
39
|
38
|
21
|
22
|
25
|
28
|
36
|
33
|
24
|
40
|
40
|
31
|
21
|
31
|
29
|
28
|
28
|
25
|
|
2023/12
|
48
|
21
|
17
|
21
|
19
|
30
|
35
|
22
|
18
|
20
|
22
|
26
|
15
|
18
|
22
|
25
|
19
|
20
|
22
|
54
|
46
|
60
|
53
|
55
|
55
|
37
|
34
|
31
|
28
|
34
|
32
|
|
2023/11
|
38
|
25
|
25
|
27
|
25
|
37
|
28
|
21
|
24
|
28
|
26
|
30
|
34
|
20
|
18
|
29
|
48
|
45
|
42
|
48
|
32
|
40
|
43
|
42
|
26
|
41
|
50
|
54
|
43
|
51
|
|
|
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