Air Quality
Excellent
No health implications.
17
PM2.5
20
PM10
32
O3
0.8
CO
6
SO2
14
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
10 Jan
36
Excellent
Sat
11 Jan
36
Excellent
Sun
12 Jan
40
Excellent
Mon
13 Jan
39
Excellent
Tue
14 Jan
33
Excellent
Wed
15 Jan
36
Excellent
Thu
16 Jan
46
Excellent
Air quality in the last 12 months (Chengjiang)
|
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
|
|
2024/11
|
28
|
33
|
44
|
42
|
43
|
49
|
32
|
26
|
22
|
30
|
23
|
20
|
20
|
25
|
26
|
26
|
31
|
30
|
33
|
32
|
18
|
25
|
20
|
19
|
20
|
32
|
19
|
25
|
22
|
18
|
|
|
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
|
|
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