Air Quality
Excellent
No health implications.
9
PM2.5
18
PM10
73
O3
0.6
CO
8
SO2
9
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
17 May
43
Excellent
Sat
18 May
38
Excellent
Sun
19 May
51
Good
Mon
20 May
62
Good
Tue
21 May
55
Good
Wed
22 May
53
Good
Thu
23 May
67
Good
Air quality in the last 12 months (Ziyun)
|
2024/02
|
47
|
43
|
34
|
27
|
26
|
19
|
27
|
28
|
55
|
138
|
76
|
31
|
40
|
45
|
62
|
43
|
49
|
33
|
37
|
46
|
49
|
42
|
20
|
18
|
19
|
25
|
32
|
23
|
27
|
||
|
2024/01
|
59
|
28
|
28
|
30
|
62
|
68
|
35
|
35
|
52
|
50
|
32
|
33
|
17
|
20
|
24
|
23
|
21
|
22
|
31
|
33
|
28
|
24
|
44
|
47
|
40
|
43
|
43
|
45
|
38
|
24
|
24
|
|
2023/12
|
50
|
29
|
21
|
22
|
45
|
42
|
51
|
45
|
45
|
26
|
44
|
45
|
25
|
31
|
32
|
27
|
45
|
20
|
36
|
43
|
55
|
59
|
72
|
67
|
77
|
52
|
56
|
61
|
78
|
78
|
62
|
|
2023/11
|
39
|
34
|
44
|
40
|
31
|
33
|
23
|
17
|
26
|
44
|
41
|
19
|
22
|
30
|
13
|
26
|
49
|
55
|
50
|
56
|
33
|
52
|
79
|
73
|
49
|
35
|
50
|
34
|
60
|
62
|
|
|
2023/10
|
21
|
25
|
28
|
35
|
25
|
18
|
15
|
20
|
24
|
26
|
29
|
26
|
17
|
20
|
34
|
39
|
34
|
35
|
36
|
29
|
37
|
39
|
30
|
27
|
37
|
42
|
22
|
29
|
32
|
46
|
41
|
|
2023/09
|
36
|
37
|
36
|
28
|
33
|
36
|
33
|
29
|
25
|
26
|
34
|
21
|
25
|
30
|
37
|
25
|
19
|
19
|
19
|
24
|
22
|
23
|
24
|
28
|
29
|
31
|
22
|
24
|
21
|
25
|
|
|
2023/08
|
21
|
20
|
18
|
20
|
21
|
20
|
19
|
16
|
17
|
18
|
21
|
22
|
27
|
27
|
23
|
22
|
24
|
29
|
35
|
38
|
23
|
26
|
22
|
18
|
15
|
15
|
19
|
25
|
34
|
33
|
32
|
|
2023/07
|
23
|
23
|
22
|
24
|
23
|
19
|
19
|
21
|
20
|
21
|
22
|
24
|
22
|
25
|
44
|
41
|
42
|
37
|
21
|
22
|
21
|
24
|
20
|
25
|
27
|
26
|
26
|
26
|
23
|
26
|
24
|
|
2023/06
|
34
|
36
|
34
|
31
|
21
|
27
|
29
|
34
|
36
|
37
|
36
|
38
|
40
|
37
|
31
|
24
|
26
|
27
|
23
|
32
|
21
|
25
|
27
|
34
|
29
|
27
|
21
|
21
|
20
|
22
|
|
|
2023/05
|
58
|
45
|
37
|
35
|
38
|
42
|
29
|
24
|
16
|
20
|
24
|
32
|
65
|
80
|
46
|
31
|
50
|
46
|
35
|
40
|
51
|
39
|
38
|
41
|
31
|
31
|
30
|
29
|
26
|
29
|
36
|
|
2023/04
|
41
|
51
|
42
|
42
|
51
|
27
|
29
|
45
|
57
|
32
|
56
|
56
|
67
|
48
|
37
|
41
|
58
|
55
|
41
|
41
|
59
|
88
|
67
|
32
|
26
|
36
|
36
|
50
|
34
|
58
|
|
|
2023/03
|
83
|
64
|
31
|
49
|
47
|
68
|
44
|
37
|
39
|
49
|
64
|
43
|
29
|
52
|
67
|
46
|
54
|
43
|
35
|
34
|
41
|
43
|
46
|
28
|
30
|
30
|
26
|
40
|
27
|
43
|
48
|
|
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