Air Quality
Excellent
No health implications.
7
PM2.5
9
PM10
36
O3
0.3
CO
8
SO2
23
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
25 Sep
54
Good
Sat
26 Sep
50
Excellent
Sun
27 Sep
60
Good
Mon
28 Sep
62
Good
Tue
29 Sep
60
Good
Wed
30 Sep
33
Excellent
Thu
1 Oct
39
Excellent
Air quality in the last 12 months (Chengguan)
|
2026/08
|
25
|
32
|
34
|
26
|
36
|
35
|
32
|
38
|
33
|
38
|
28
|
26
|
31
|
29
|
23
|
23
|
24
|
25
|
29
|
22
|
19
|
20
|
23
|
20
|
23
|
26
|
21
|
23
|
26
|
25
|
25
|
|
2026/07
|
46
|
46
|
39
|
39
|
34
|
32
|
29
|
30
|
25
|
24
|
25
|
27
|
22
|
21
|
21
|
20
|
24
|
30
|
34
|
40
|
40
|
37
|
26
|
27
|
24
|
32
|
35
|
27
|
28
|
22
|
24
|
|
2026/06
|
38
|
39
|
40
|
45
|
43
|
42
|
36
|
37
|
37
|
38
|
40
|
41
|
36
|
33
|
34
|
35
|
35
|
42
|
40
|
39
|
32
|
33
|
38
|
39
|
37
|
35
|
37
|
41
|
43
|
40
|
|
|
2026/05
|
38
|
34
|
36
|
40
|
34
|
40
|
42
|
40
|
37
|
32
|
38
|
35
|
34
|
35
|
42
|
37
|
43
|
37
|
30
|
32
|
33
|
33
|
31
|
34
|
39
|
38
|
39
|
46
|
40
|
36
|
41
|
|
2026/04
|
33
|
33
|
29
|
26
|
27
|
38
|
37
|
39
|
41
|
56
|
48
|
43
|
43
|
37
|
39
|
44
|
32
|
34
|
32
|
31
|
35
|
39
|
34
|
31
|
31
|
38
|
32
|
32
|
35
|
31
|
|
|
2026/03
|
41
|
36
|
32
|
30
|
28
|
31
|
26
|
28
|
27
|
27
|
29
|
27
|
27
|
29
|
32
|
36
|
38
|
36
|
29
|
29
|
31
|
34
|
35
|
33
|
41
|
38
|
33
|
31
|
32
|
26
|
27
|
|
2026/02
|
29
|
30
|
22
|
19
|
14
|
19
|
19
|
19
|
20
|
32
|
26
|
15
|
15
|
24
|
16
|
29
|
26
|
36
|
19
|
20
|
17
|
17
|
14
|
13
|
17
|
16
|
34
|
44
|
|||
|
2026/01
|
25
|
26
|
24
|
19
|
25
|
40
|
47
|
29
|
37
|
51
|
41
|
20
|
27
|
39
|
30
|
22
|
30
|
37
|
36
|
28
|
33
|
26
|
29
|
27
|
21
|
26
|
21
|
36
|
15
|
23
|
23
|
|
2025/12
|
34
|
39
|
44
|
36
|
35
|
34
|
36
|
44
|
35
|
33
|
32
|
36
|
31
|
39
|
37
|
30
|
35
|
31
|
45
|
40
|
38
|
47
|
48
|
43
|
32
|
34
|
36
|
33
|
29
|
26
|
30
|
|
2025/11
|
12
|
12
|
16
|
22
|
33
|
20
|
21
|
19
|
20
|
24
|
34
|
27
|
26
|
28
|
29
|
26
|
27
|
26
|
30
|
28
|
30
|
30
|
27
|
31
|
29
|
29
|
29
|
37
|
32
|
32
|
|
|
2025/10
|
15
|
12
|
10
|
10
|
10
|
12
|
14
|
14
|
10
|
10
|
11
|
12
|
17
|
16
|
20
|
19
|
15
|
13
|
15
|
15
|
20
|
24
|
15
|
11
|
15
|
17
|
17
|
23
|
15
|
17
|
9
|
|
2025/09
|
11
|
11
|
12
|
14
|
14
|
10
|
13
|
12
|
14
|
16
|
13
|
12
|
14
|
10
|
9
|
9
|
15
|
12
|
13
|
10
|
12
|
13
|
18
|
20
|
16
|
15
|
12
|
11
|
14
|
20
|
|
|
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