Air Quality
Excellent
No health implications.
14
PM2.5
34
PM10
51
O3
0.7
CO
6
SO2
15
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
23 Apr
37
Excellent
Thu
24 Apr
40
Excellent
Fri
25 Apr
44
Excellent
Sat
26 Apr
50
Excellent
Sun
27 Apr
50
Excellent
Mon
28 Apr
47
Excellent
Tue
29 Apr
45
Excellent
Air quality in the last 12 months (Mashan)
|
2025/02
|
39
|
18
|
17
|
47
|
85
|
32
|
13
|
42
|
56
|
70
|
114
|
79
|
36
|
83
|
46
|
35
|
43
|
27
|
35
|
27
|
15
|
21
|
12
|
29
|
55
|
24
|
39
|
56
|
|||
|
2025/01
|
125
|
116
|
88
|
111
|
83
|
102
|
121
|
91
|
59
|
32
|
48
|
73
|
92
|
108
|
90
|
73
|
85
|
101
|
97
|
104
|
106
|
105
|
127
|
87
|
46
|
12
|
39
|
50
|
138
|
87
|
59
|
|
2024/12
|
82
|
92
|
87
|
85
|
74
|
43
|
19
|
29
|
56
|
82
|
33
|
30
|
39
|
50
|
44
|
56
|
87
|
74
|
65
|
85
|
98
|
93
|
95
|
96
|
101
|
89
|
80
|
58
|
92
|
130
|
109
|
|
2024/11
|
45
|
46
|
58
|
66
|
58
|
61
|
61
|
55
|
57
|
57
|
61
|
63
|
70
|
72
|
63
|
59
|
57
|
35
|
26
|
23
|
27
|
27
|
38
|
52
|
66
|
18
|
32
|
34
|
43
|
59
|
|
|
2024/10
|
20
|
22
|
37
|
53
|
55
|
55
|
55
|
49
|
39
|
45
|
51
|
57
|
63
|
42
|
17
|
33
|
33
|
28
|
28
|
25
|
40
|
42
|
24
|
34
|
34
|
36
|
30
|
27
|
37
|
47
|
50
|
|
2024/09
|
28
|
35
|
29
|
32
|
41
|
37
|
17
|
18
|
21
|
22
|
24
|
33
|
42
|
44
|
45
|
30
|
25
|
31
|
33
|
38
|
31
|
24
|
29
|
38
|
50
|
52
|
51
|
52
|
35
|
36
|
|
|
2024/08
|
17
|
19
|
21
|
24
|
30
|
32
|
34
|
30
|
29
|
32
|
21
|
23
|
20
|
25
|
27
|
31
|
27
|
25
|
31
|
28
|
26
|
23
|
25
|
27
|
26
|
30
|
32
|
38
|
35
|
35
|
36
|
|
2024/07
|
29
|
14
|
16
|
25
|
20
|
18
|
19
|
20
|
23
|
25
|
24
|
24
|
25
|
23
|
28
|
29
|
24
|
19
|
19
|
24
|
33
|
33
|
25
|
19
|
26
|
38
|
40
|
26
|
22
|
15
|
14
|
|
2024/06
|
33
|
41
|
28
|
19
|
18
|
31
|
32
|
28
|
17
|
15
|
26
|
28
|
32
|
23
|
30
|
30
|
31
|
16
|
30
|
27
|
31
|
26
|
24
|
16
|
13
|
13
|
20
|
18
|
20
|
22
|
|
|
2024/05
|
18
|
25
|
28
|
30
|
26
|
33
|
40
|
41
|
28
|
29
|
37
|
22
|
48
|
55
|
49
|
50
|
51
|
44
|
16
|
24
|
30
|
30
|
41
|
49
|
41
|
20
|
31
|
24
|
38
|
24
|
19
|
|
2024/04
|
65
|
64
|
68
|
46
|
24
|
27
|
22
|
22
|
43
|
39
|
43
|
54
|
51
|
53
|
55
|
45
|
43
|
31
|
48
|
38
|
18
|
42
|
30
|
44
|
57
|
44
|
54
|
51
|
65
|
57
|
|
|
2024/03
|
39
|
62
|
81
|
48
|
58
|
38
|
64
|
70
|
64
|
29
|
29
|
48
|
40
|
21
|
18
|
43
|
58
|
48
|
24
|
74
|
82
|
58
|
44
|
50
|
54
|
40
|
59
|
44
|
51
|
56
|
58
|
|
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