Air Quality
Excellent
No health implications.
12
PM2.5
17
PM10
23
O3
0.6
CO
2
SO2
42
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
20 Jul
53
Good
Mon
21 Jul
31
Excellent
Tue
22 Jul
39
Excellent
Wed
23 Jul
34
Excellent
Thu
24 Jul
39
Excellent
Fri
25 Jul
39
Excellent
Sat
26 Jul
32
Excellent
Air quality in the last 12 months (Chenggong)
|
2025/06
|
13
|
18
|
18
|
22
|
25
|
32
|
31
|
35
|
29
|
32
|
32
|
39
|
45
|
43
|
15
|
21
|
14
|
8
|
11
|
17
|
21
|
10
|
15
|
8
|
9
|
14
|
15
|
17
|
16
|
16
|
|
|
2025/05
|
40
|
25
|
25
|
21
|
25
|
28
|
29
|
34
|
46
|
36
|
26
|
31
|
30
|
31
|
28
|
26
|
34
|
30
|
37
|
29
|
37
|
32
|
52
|
31
|
20
|
18
|
17
|
17
|
15
|
15
|
12
|
|
2025/04
|
33
|
53
|
89
|
84
|
93
|
79
|
77
|
68
|
63
|
71
|
58
|
49
|
70
|
60
|
55
|
27
|
26
|
33
|
34
|
38
|
33
|
29
|
40
|
50
|
50
|
62
|
65
|
63
|
33
|
33
|
|
|
2025/03
|
45
|
47
|
51
|
49
|
52
|
51
|
39
|
55
|
49
|
44
|
53
|
64
|
67
|
72
|
63
|
41
|
32
|
25
|
38
|
47
|
66
|
64
|
53
|
49
|
41
|
46
|
46
|
89
|
119
|
73
|
64
|
|
2025/02
|
49
|
51
|
31
|
43
|
51
|
52
|
33
|
43
|
49
|
35
|
41
|
55
|
58
|
59
|
60
|
62
|
41
|
39
|
47
|
54
|
63
|
56
|
61
|
32
|
33
|
31
|
32
|
43
|
|||
|
2025/01
|
31
|
40
|
46
|
37
|
35
|
48
|
35
|
31
|
47
|
23
|
22
|
47
|
39
|
43
|
78
|
72
|
42
|
31
|
73
|
45
|
42
|
34
|
32
|
25
|
28
|
32
|
43
|
54
|
70
|
33
|
32
|
|
2024/12
|
18
|
28
|
17
|
22
|
26
|
24
|
26
|
40
|
16
|
23
|
29
|
26
|
48
|
42
|
38
|
26
|
25
|
29
|
37
|
29
|
29
|
23
|
30
|
29
|
29
|
40
|
40
|
35
|
31
|
24
|
47
|
|
2024/11
|
30
|
32
|
48
|
36
|
44
|
47
|
30
|
22
|
22
|
37
|
27
|
20
|
20
|
25
|
35
|
28
|
37
|
32
|
32
|
29
|
17
|
26
|
18
|
17
|
19
|
34
|
25
|
32
|
22
|
18
|
|
|
2024/10
|
13
|
21
|
30
|
26
|
21
|
26
|
44
|
36
|
31
|
16
|
19
|
22
|
23
|
29
|
25
|
19
|
17
|
31
|
40
|
30
|
21
|
29
|
30
|
36
|
38
|
36
|
49
|
45
|
53
|
44
|
36
|
|
2024/09
|
26
|
26
|
25
|
21
|
20
|
36
|
34
|
18
|
14
|
15
|
19
|
21
|
32
|
38
|
35
|
27
|
24
|
24
|
27
|
36
|
33
|
22
|
25
|
44
|
42
|
40
|
30
|
22
|
23
|
26
|
|
|
2024/08
|
36
|
30
|
22
|
19
|
17
|
17
|
18
|
18
|
14
|
23
|
36
|
51
|
55
|
46
|
38
|
38
|
37
|
40
|
35
|
46
|
37
|
23
|
19
|
22
|
26
|
17
|
23
|
27
|
28
|
33
|
30
|
|
2024/07
|
15
|
20
|
13
|
12
|
17
|
15
|
15
|
14
|
17
|
17
|
14
|
16
|
15
|
16
|
19
|
19
|
20
|
19
|
20
|
20
|
15
|
15
|
21
|
27
|
21
|
23
|
33
|
28
|
26
|
18
|
24
|
|
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