Air Quality
Excellent
No health implications.
20
PM2.5
31
PM10
41
O3
0.4
CO
7
SO2
18
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
16 Jan
68
Good
Fri
17 Jan
71
Good
Sat
18 Jan
87
Good
Sun
19 Jan
85
Good
Mon
20 Jan
91
Good
Tue
21 Jan
20
Excellent
Wed
22 Jan
29
Excellent
Air quality in the last 12 months (Mashan)
|
2024/12
|
39
|
31
|
24
|
19
|
19
|
26
|
24
|
31
|
46
|
49
|
32
|
39
|
39
|
43
|
28
|
31
|
38
|
33
|
37
|
59
|
53
|
49
|
42
|
36
|
49
|
31
|
28
|
34
|
44
|
69
|
67
|
|
2024/11
|
59
|
53
|
52
|
40
|
44
|
31
|
55
|
72
|
85
|
62
|
66
|
108
|
124
|
87
|
79
|
64
|
23
|
23
|
42
|
58
|
64
|
39
|
35
|
46
|
58
|
33
|
28
|
44
|
32
|
27
|
|
|
2024/10
|
17
|
25
|
32
|
43
|
46
|
45
|
31
|
47
|
51
|
44
|
30
|
33
|
45
|
54
|
24
|
34
|
48
|
48
|
31
|
35
|
39
|
35
|
37
|
43
|
61
|
48
|
32
|
46
|
53
|
52
|
63
|
|
2024/09
|
25
|
19
|
28
|
39
|
15
|
23
|
23
|
32
|
39
|
20
|
27
|
40
|
28
|
29
|
23
|
40
|
29
|
31
|
36
|
22
|
26
|
29
|
39
|
37
|
31
|
22
|
36
|
40
|
43
|
31
|
|
|
2024/08
|
17
|
17
|
17
|
20
|
19
|
18
|
30
|
31
|
30
|
37
|
16
|
17
|
23
|
27
|
35
|
34
|
33
|
39
|
17
|
25
|
25
|
24
|
25
|
35
|
35
|
27
|
25
|
31
|
38
|
30
|
21
|
|
2024/07
|
69
|
65
|
54
|
26
|
28
|
49
|
47
|
55
|
57
|
46
|
67
|
51
|
39
|
48
|
54
|
54
|
39
|
27
|
31
|
42
|
37
|
28
|
33
|
26
|
27
|
15
|
15
|
21
|
23
|
19
|
29
|
|
2024/06
|
14
|
19
|
29
|
21
|
27
|
31
|
35
|
28
|
18
|
21
|
38
|
21
|
22
|
13
|
17
|
14
|
19
|
21
|
34
|
31
|
15
|
13
|
12
|
12
|
17
|
22
|
25
|
51
|
49
|
49
|
|
|
2024/05
|
47
|
56
|
57
|
58
|
69
|
63
|
41
|
41
|
34
|
38
|
31
|
24
|
28
|
31
|
30
|
24
|
34
|
49
|
27
|
22
|
24
|
43
|
32
|
22
|
23
|
23
|
15
|
22
|
19
|
20
|
15
|
|
2024/04
|
37
|
34
|
57
|
29
|
41
|
64
|
32
|
23
|
46
|
60
|
74
|
67
|
55
|
70
|
158
|
57
|
43
|
67
|
54
|
92
|
115
|
75
|
61
|
46
|
68
|
56
|
55
|
64
|
62
|
40
|
|
|
2024/03
|
39
|
30
|
35
|
38
|
39
|
38
|
43
|
40
|
26
|
45
|
66
|
47
|
52
|
50
|
37
|
23
|
24
|
31
|
37
|
30
|
33
|
37
|
25
|
22
|
31
|
44
|
44
|
88
|
80
|
43
|
44
|
|
2024/02
|
34
|
55
|
58
|
61
|
61
|
81
|
68
|
57
|
104
|
199
|
78
|
56
|
64
|
44
|
28
|
38
|
57
|
46
|
40
|
27
|
29
|
27
|
34
|
66
|
73
|
44
|
43
|
55
|
50
|
||
|
2024/01
|
71
|
89
|
120
|
122
|
93
|
73
|
54
|
47
|
56
|
55
|
83
|
70
|
60
|
55
|
25
|
40
|
68
|
55
|
60
|
59
|
39
|
37
|
37
|
62
|
46
|
77
|
113
|
125
|
96
|
80
|
56
|
|
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