Air Quality
Excellent
No health implications.
20
PM2.5
35
PM10
78
O3
0.4
CO
7
SO2
13
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
24 Mar
57
Good
Tue
25 Mar
59
Good
Wed
26 Mar
83
Good
Thu
27 Mar
54
Good
Fri
28 Mar
53
Good
Sat
29 Mar
50
Excellent
Sun
30 Mar
50
Excellent
Air quality in the last 12 months (Mashan)
|
2025/02
|
48
|
78
|
65
|
44
|
32
|
24
|
31
|
30
|
31
|
43
|
56
|
62
|
29
|
34
|
48
|
48
|
32
|
24
|
28
|
32
|
36
|
29
|
26
|
30
|
48
|
29
|
49
|
65
|
|||
|
2025/01
|
65
|
59
|
50
|
48
|
82
|
75
|
65
|
56
|
36
|
42
|
63
|
75
|
74
|
59
|
42
|
44
|
56
|
88
|
92
|
100
|
130
|
130
|
100
|
72
|
72
|
85
|
60
|
50
|
50
|
43
|
36
|
|
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
|
|
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