Air Quality
Excellent
No health implications.
17
PM2.5
26
PM10
33
O3
0.9
CO
14
SO2
25
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
19 Dec
57
Good
Sat
20 Dec
57
Good
Sun
21 Dec
57
Good
Mon
22 Dec
60
Good
Tue
23 Dec
57
Good
Wed
24 Dec
44
Excellent
Thu
25 Dec
41
Excellent
Chengguan Air quality rank
Air quality in the last 12 months (Chengguan)
|
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
|
|
|
2025/08
|
13
|
13
|
11
|
13
|
13
|
15
|
16
|
11
|
14
|
11
|
11
|
15
|
21
|
17
|
16
|
15
|
14
|
12
|
11
|
13
|
12
|
9
|
12
|
12
|
11
|
13
|
12
|
9
|
12
|
12
|
14
|
|
2025/07
|
11
|
14
|
15
|
12
|
14
|
21
|
20
|
24
|
23
|
22
|
19
|
21
|
11
|
12
|
14
|
10
|
12
|
18
|
19
|
16
|
10
|
11
|
14
|
13
|
13
|
12
|
11
|
11
|
10
|
13
|
12
|
|
2025/06
|
13
|
13
|
16
|
16
|
12
|
12
|
11
|
18
|
23
|
23
|
26
|
27
|
21
|
13
|
12
|
12
|
14
|
16
|
13
|
10
|
21
|
21
|
18
|
12
|
23
|
24
|
23
|
18
|
12
|
14
|
|
|
2025/05
|
17
|
17
|
16
|
16
|
18
|
12
|
19
|
32
|
36
|
33
|
34
|
24
|
18
|
14
|
13
|
11
|
11
|
13
|
14
|
11
|
25
|
26
|
18
|
28
|
14
|
12
|
16
|
25
|
24
|
15
|
11
|
|
2025/04
|
28
|
33
|
26
|
29
|
29
|
23
|
31
|
34
|
26
|
26
|
15
|
16
|
17
|
20
|
14
|
26
|
19
|
27
|
29
|
17
|
19
|
29
|
28
|
24
|
29
|
37
|
27
|
22
|
20
|
24
|
|
|
2025/03
|
23
|
16
|
22
|
30
|
37
|
32
|
28
|
25
|
16
|
19
|
28
|
19
|
15
|
15
|
17
|
22
|
18
|
19
|
20
|
22
|
33
|
24
|
15
|
14
|
14
|
24
|
23
|
25
|
39
|
36
|
25
|
|
2025/02
|
34
|
37
|
31
|
23
|
38
|
28
|
29
|
32
|
22
|
28
|
21
|
29
|
32
|
46
|
29
|
18
|
21
|
20
|
16
|
15
|
19
|
17
|
18
|
16
|
13
|
21
|
24
|
38
|
|||
|
2025/01
|
32
|
33
|
42
|
35
|
23
|
35
|
22
|
23
|
24
|
29
|
28
|
24
|
25
|
23
|
28
|
32
|
28
|
30
|
25
|
27
|
33
|
33
|
35
|
46
|
30
|
17
|
18
|
22
|
31
|
36
|
54
|
|
2024/12
|
33
|
30
|
30
|
39
|
31
|
32
|
46
|
67
|
88
|
46
|
38
|
43
|
45
|
26
|
24
|
35
|
42
|
48
|
25
|
33
|
32
|
28
|
32
|
45
|
38
|
22
|
25
|
29
|
25
|
22
|
21
|
|
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