Air Quality
Excellent
No health implications.
9
PM2.5
19
PM10
38
O3
0.3
CO
4
SO2
18
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 May
49
Excellent
Mon
19 May
48
Excellent
Tue
20 May
47
Excellent
Wed
21 May
56
Good
Thu
22 May
57
Good
Fri
23 May
57
Good
Sat
24 May
48
Excellent
Air quality in the last 12 months (Liwan)
|
2025/02
|
36
|
37
|
12
|
33
|
41
|
48
|
22
|
56
|
33
|
52
|
54
|
49
|
45
|
50
|
39
|
61
|
44
|
57
|
49
|
47
|
36
|
37
|
22
|
32
|
49
|
48
|
56
|
42
|
|||
|
2025/01
|
80
|
82
|
62
|
68
|
92
|
89
|
87
|
78
|
69
|
50
|
43
|
51
|
72
|
76
|
63
|
59
|
56
|
65
|
71
|
70
|
85
|
60
|
72
|
46
|
29
|
20
|
29
|
42
|
60
|
53
|
32
|
|
2024/12
|
73
|
89
|
79
|
68
|
62
|
69
|
50
|
39
|
60
|
64
|
55
|
32
|
46
|
64
|
50
|
50
|
65
|
50
|
60
|
67
|
57
|
65
|
75
|
71
|
62
|
67
|
79
|
70
|
85
|
101
|
86
|
|
2024/11
|
46
|
36
|
48
|
50
|
38
|
57
|
47
|
49
|
55
|
55
|
51
|
46
|
40
|
29
|
17
|
15
|
27
|
27
|
24
|
26
|
24
|
34
|
36
|
43
|
27
|
26
|
38
|
48
|
44
|
55
|
|
|
2024/10
|
32
|
31
|
43
|
37
|
44
|
45
|
50
|
74
|
51
|
33
|
43
|
59
|
52
|
36
|
45
|
37
|
31
|
42
|
49
|
37
|
29
|
28
|
30
|
39
|
44
|
38
|
27
|
20
|
28
|
43
|
44
|
|
2024/09
|
35
|
36
|
35
|
37
|
25
|
12
|
18
|
19
|
21
|
30
|
50
|
53
|
38
|
38
|
22
|
25
|
32
|
16
|
31
|
25
|
17
|
18
|
21
|
24
|
44
|
46
|
39
|
47
|
35
|
36
|
|
|
2024/08
|
27
|
34
|
30
|
39
|
43
|
46
|
49
|
38
|
31
|
36
|
31
|
32
|
37
|
35
|
22
|
23
|
19
|
21
|
28
|
30
|
21
|
23
|
36
|
44
|
29
|
36
|
39
|
52
|
28
|
30
|
24
|
|
2024/07
|
46
|
31
|
18
|
18
|
28
|
19
|
16
|
25
|
22
|
18
|
17
|
19
|
18
|
28
|
20
|
21
|
21
|
16
|
19
|
22
|
23
|
23
|
19
|
27
|
37
|
36
|
20
|
14
|
15
|
15
|
18
|
|
2024/06
|
13
|
24
|
28
|
30
|
35
|
22
|
25
|
26
|
22
|
20
|
22
|
28
|
32
|
31
|
22
|
24
|
26
|
26
|
28
|
27
|
21
|
33
|
13
|
16
|
18
|
24
|
23
|
20
|
20
|
25
|
|
|
2024/05
|
22
|
27
|
45
|
28
|
32
|
43
|
41
|
30
|
45
|
46
|
42
|
35
|
38
|
49
|
51
|
54
|
57
|
42
|
33
|
19
|
15
|
29
|
41
|
21
|
25
|
22
|
24
|
21
|
28
|
42
|
18
|
|
2024/04
|
47
|
50
|
33
|
33
|
23
|
28
|
24
|
25
|
28
|
42
|
54
|
53
|
53
|
37
|
42
|
39
|
37
|
35
|
32
|
23
|
22
|
38
|
32
|
42
|
22
|
32
|
40
|
29
|
29
|
26
|
|
|
2024/03
|
24
|
30
|
51
|
50
|
37
|
40
|
37
|
44
|
48
|
21
|
25
|
40
|
62
|
62
|
61
|
72
|
58
|
55
|
25
|
72
|
59
|
56
|
51
|
46
|
41
|
49
|
42
|
47
|
54
|
41
|
45
|
|
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