Air Quality
Excellent
No health implications.
10
PM2.5
22
PM10
70
O3
0.8
CO
7
SO2
11
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
5 May
48
Excellent
Mon
6 May
44
Excellent
Tue
7 May
42
Excellent
Wed
8 May
40
Excellent
Thu
9 May
40
Excellent
Fri
10 May
40
Excellent
Sat
11 May
40
Excellent
Air quality in the last 12 months (Mashan)
|
2024/02
|
45
|
41
|
39
|
30
|
21
|
16
|
14
|
19
|
33
|
115
|
68
|
71
|
67
|
68
|
51
|
27
|
63
|
44
|
48
|
50
|
54
|
36
|
16
|
14
|
19
|
18
|
24
|
15
|
16
|
||
|
2024/01
|
121
|
55
|
26
|
54
|
100
|
92
|
63
|
49
|
36
|
31
|
36
|
26
|
35
|
60
|
62
|
52
|
55
|
55
|
57
|
21
|
16
|
15
|
34
|
47
|
45
|
52
|
54
|
51
|
33
|
30
|
46
|
|
2023/12
|
63
|
52
|
25
|
19
|
39
|
44
|
52
|
56
|
53
|
48
|
46
|
36
|
59
|
61
|
41
|
20
|
30
|
21
|
14
|
29
|
50
|
59
|
57
|
59
|
58
|
71
|
90
|
100
|
100
|
80
|
96
|
|
2023/11
|
47
|
51
|
55
|
41
|
34
|
24
|
23
|
44
|
49
|
45
|
39
|
16
|
11
|
22
|
31
|
22
|
46
|
48
|
55
|
59
|
66
|
74
|
70
|
69
|
75
|
74
|
54
|
58
|
78
|
84
|
|
|
2023/10
|
41
|
39
|
36
|
39
|
42
|
27
|
26
|
23
|
27
|
22
|
25
|
33
|
46
|
37
|
32
|
43
|
48
|
57
|
33
|
21
|
30
|
42
|
50
|
50
|
45
|
49
|
40
|
27
|
22
|
31
|
41
|
|
2023/09
|
38
|
34
|
23
|
19
|
30
|
38
|
33
|
26
|
24
|
23
|
21
|
16
|
15
|
18
|
24
|
32
|
29
|
27
|
25
|
26
|
30
|
37
|
38
|
44
|
43
|
42
|
41
|
32
|
36
|
37
|
|
|
2023/08
|
26
|
26
|
26
|
27
|
21
|
19
|
19
|
21
|
25
|
34
|
27
|
32
|
34
|
27
|
27
|
30
|
35
|
35
|
38
|
30
|
29
|
31
|
36
|
26
|
29
|
30
|
27
|
18
|
22
|
32
|
34
|
|
2023/07
|
34
|
30
|
25
|
26
|
21
|
21
|
25
|
27
|
27
|
30
|
27
|
29
|
29
|
35
|
35
|
47
|
54
|
25
|
22
|
26
|
26
|
29
|
30
|
34
|
38
|
45
|
52
|
45
|
41
|
33
|
23
|
|
2023/06
|
48
|
41
|
42
|
37
|
32
|
25
|
28
|
21
|
29
|
37
|
45
|
47
|
35
|
33
|
42
|
34
|
29
|
28
|
24
|
28
|
31
|
20
|
22
|
21
|
16
|
18
|
22
|
26
|
26
|
29
|
|
|
2023/05
|
71
|
40
|
33
|
35
|
45
|
52
|
26
|
19
|
32
|
33
|
17
|
31
|
38
|
47
|
52
|
43
|
50
|
55
|
51
|
54
|
58
|
51
|
29
|
32
|
44
|
34
|
29
|
26
|
34
|
50
|
61
|
|
2023/04
|
55
|
47
|
49
|
54
|
63
|
34
|
32
|
67
|
68
|
26
|
35
|
47
|
45
|
52
|
45
|
57
|
57
|
52
|
45
|
49
|
66
|
57
|
56
|
27
|
19
|
37
|
47
|
39
|
32
|
68
|
|
|
2023/03
|
70
|
76
|
76
|
50
|
72
|
83
|
69
|
67
|
63
|
60
|
54
|
75
|
84
|
80
|
73
|
57
|
51
|
49
|
42
|
46
|
49
|
63
|
71
|
45
|
30
|
33
|
27
|
41
|
34
|
44
|
57
|
|
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