Air Quality
Excellent
No health implications.
8
PM2.5
9
PM10
48
O3
0.6
CO
4
SO2
19
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 May
33
Excellent
Mon
19 May
34
Excellent
Tue
20 May
30
Excellent
Wed
21 May
38
Excellent
Thu
22 May
38
Excellent
Fri
23 May
40
Excellent
Sat
24 May
27
Excellent
Air quality in the last 12 months (Liunan)
|
2025/02
|
25
|
20
|
30
|
58
|
67
|
27
|
27
|
62
|
40
|
70
|
143
|
135
|
67
|
80
|
28
|
31
|
34
|
30
|
34
|
22
|
25
|
23
|
23
|
49
|
62
|
36
|
45
|
54
|
|||
|
2025/01
|
134
|
111
|
92
|
121
|
98
|
118
|
92
|
80
|
66
|
54
|
62
|
103
|
119
|
131
|
74
|
74
|
89
|
133
|
116
|
129
|
115
|
110
|
155
|
89
|
65
|
25
|
47
|
66
|
135
|
112
|
78
|
|
2024/12
|
85
|
99
|
101
|
88
|
74
|
32
|
27
|
39
|
74
|
64
|
22
|
38
|
56
|
63
|
48
|
55
|
114
|
61
|
66
|
93
|
97
|
90
|
93
|
91
|
106
|
88
|
85
|
76
|
88
|
140
|
98
|
|
2024/11
|
49
|
55
|
79
|
93
|
66
|
69
|
59
|
71
|
65
|
66
|
80
|
71
|
74
|
67
|
69
|
51
|
38
|
29
|
27
|
30
|
34
|
38
|
34
|
46
|
52
|
27
|
37
|
51
|
64
|
74
|
|
|
2024/10
|
45
|
40
|
56
|
62
|
66
|
64
|
63
|
51
|
42
|
52
|
61
|
65
|
70
|
58
|
27
|
40
|
36
|
25
|
17
|
21
|
30
|
36
|
31
|
35
|
49
|
46
|
41
|
34
|
47
|
54
|
58
|
|
2024/09
|
33
|
49
|
34
|
35
|
50
|
43
|
16
|
20
|
29
|
27
|
31
|
42
|
51
|
44
|
44
|
32
|
29
|
43
|
44
|
37
|
36
|
28
|
36
|
41
|
46
|
33
|
51
|
54
|
36
|
55
|
|
|
2024/08
|
18
|
20
|
21
|
23
|
36
|
36
|
32
|
27
|
27
|
30
|
37
|
25
|
15
|
21
|
33
|
36
|
28
|
27
|
32
|
27
|
20
|
21
|
30
|
33
|
35
|
39
|
40
|
48
|
39
|
36
|
42
|
|
2024/07
|
26
|
13
|
22
|
20
|
20
|
22
|
21
|
20
|
22
|
25
|
25
|
26
|
28
|
23
|
27
|
32
|
21
|
19
|
29
|
29
|
35
|
38
|
30
|
23
|
37
|
58
|
43
|
17
|
16
|
16
|
12
|
|
2024/06
|
28
|
32
|
32
|
22
|
16
|
23
|
28
|
27
|
15
|
22
|
21
|
22
|
28
|
17
|
33
|
25
|
24
|
15
|
27
|
26
|
25
|
21
|
21
|
15
|
19
|
18
|
25
|
17
|
17
|
20
|
|
|
2024/05
|
19
|
23
|
37
|
30
|
27
|
50
|
64
|
55
|
31
|
33
|
40
|
22
|
57
|
60
|
66
|
56
|
60
|
34
|
14
|
23
|
27
|
33
|
46
|
46
|
39
|
18
|
26
|
29
|
44
|
21
|
18
|
|
2024/04
|
57
|
55
|
52
|
28
|
21
|
19
|
17
|
29
|
39
|
39
|
33
|
48
|
50
|
48
|
56
|
49
|
48
|
25
|
42
|
24
|
17
|
50
|
31
|
48
|
51
|
33
|
33
|
52
|
62
|
33
|
|
|
2024/03
|
54
|
67
|
73
|
34
|
43
|
38
|
56
|
63
|
103
|
44
|
40
|
58
|
61
|
32
|
21
|
42
|
53
|
35
|
38
|
96
|
97
|
71
|
49
|
50
|
48
|
28
|
61
|
40
|
57
|
55
|
46
|
|
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