Air Quality
Excellent
No health implications.
10
PM2.5
19
PM10
23
O3
0.5
CO
10
SO2
10
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
7 Jul
37
Excellent
Wed
8 Jul
38
Excellent
Thu
9 Jul
38
Excellent
Fri
10 Jul
39
Excellent
Sat
11 Jul
37
Excellent
Sun
12 Jul
37
Excellent
Mon
13 Jul
38
Excellent
Air quality in the last 12 months (Chengjiang)
|
2026/05
|
27
|
27
|
22
|
28
|
31
|
30
|
38
|
34
|
33
|
22
|
22
|
23
|
25
|
30
|
33
|
39
|
37
|
38
|
38
|
40
|
36
|
31
|
32
|
27
|
29
|
40
|
45
|
38
|
27
|
24
|
26
|
|
2026/04
|
41
|
42
|
39
|
40
|
39
|
40
|
39
|
48
|
38
|
35
|
39
|
42
|
47
|
59
|
70
|
63
|
60
|
56
|
58
|
43
|
47
|
53
|
52
|
57
|
41
|
44
|
42
|
37
|
31
|
31
|
|
|
2026/03
|
49
|
53
|
53
|
45
|
63
|
66
|
64
|
66
|
27
|
33
|
47
|
45
|
41
|
34
|
30
|
31
|
39
|
33
|
42
|
38
|
53
|
51
|
30
|
45
|
73
|
50
|
42
|
63
|
45
|
35
|
40
|
|
2026/02
|
30
|
31
|
34
|
39
|
39
|
40
|
41
|
42
|
31
|
30
|
29
|
26
|
26
|
33
|
38
|
50
|
69
|
49
|
34
|
29
|
22
|
25
|
34
|
39
|
42
|
36
|
31
|
42
|
|||
|
2026/01
|
38
|
29
|
21
|
19
|
28
|
28
|
31
|
29
|
29
|
25
|
44
|
31
|
50
|
33
|
51
|
26
|
34
|
34
|
32
|
28
|
24
|
28
|
29
|
31
|
27
|
35
|
32
|
35
|
32
|
33
|
41
|
|
2025/12
|
42
|
39
|
54
|
34
|
31
|
31
|
38
|
48
|
29
|
38
|
40
|
35
|
61
|
51
|
26
|
29
|
43
|
29
|
19
|
30
|
40
|
24
|
28
|
25
|
47
|
42
|
32
|
32
|
27
|
28
|
27
|
|
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
|
|
|
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