Air Quality
Excellent
No health implications.
3
PM2.5
9
PM10
35
O3
0.3
CO
10
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
29 Jun
30
Excellent
Mon
30 Jun
32
Excellent
Tue
1 Jul
38
Excellent
Wed
2 Jul
56
Good
Thu
3 Jul
57
Good
Fri
4 Jul
51
Good
Sat
5 Jul
25
Excellent
Air quality in the last 12 months (Chenggong)
|
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
|
|
2024/06
|
34
|
24
|
30
|
31
|
20
|
18
|
18
|
17
|
18
|
13
|
21
|
23
|
13
|
18
|
29
|
19
|
28
|
26
|
30
|
36
|
24
|
24
|
18
|
20
|
20
|
20
|
15
|
14
|
15
|
16
|
|
|
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