Air Quality
Excellent
No health implications.
8
PM2.5
18
PM10
64
O3
0.3
CO
7
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
17 May
30
Excellent
Sun
18 May
32
Excellent
Mon
19 May
31
Excellent
Tue
20 May
30
Excellent
Wed
21 May
38
Excellent
Thu
22 May
39
Excellent
Fri
23 May
31
Excellent
Air quality in the last 12 months (Mengshan)
|
2025/02
|
26
|
15
|
17
|
44
|
63
|
48
|
22
|
65
|
43
|
61
|
99
|
80
|
66
|
91
|
75
|
32
|
32
|
31
|
37
|
35
|
18
|
21
|
13
|
51
|
82
|
66
|
55
|
57
|
|||
|
2025/01
|
93
|
92
|
83
|
97
|
108
|
99
|
81
|
80
|
71
|
49
|
54
|
70
|
84
|
79
|
76
|
72
|
70
|
72
|
82
|
83
|
92
|
88
|
89
|
76
|
85
|
16
|
46
|
52
|
124
|
100
|
59
|
|
2024/12
|
69
|
71
|
69
|
71
|
92
|
51
|
22
|
37
|
73
|
76
|
27
|
49
|
47
|
66
|
47
|
50
|
70
|
58
|
69
|
89
|
86
|
93
|
100
|
93
|
103
|
100
|
91
|
88
|
89
|
112
|
109
|
|
2024/11
|
43
|
63
|
74
|
70
|
65
|
67
|
51
|
49
|
52
|
60
|
63
|
58
|
60
|
59
|
42
|
40
|
40
|
22
|
16
|
17
|
26
|
30
|
34
|
45
|
47
|
24
|
33
|
44
|
47
|
57
|
|
|
2024/10
|
38
|
34
|
51
|
49
|
45
|
47
|
57
|
42
|
38
|
42
|
54
|
56
|
59
|
71
|
28
|
33
|
39
|
35
|
25
|
19
|
30
|
30
|
22
|
32
|
43
|
46
|
26
|
26
|
34
|
46
|
52
|
|
2024/09
|
28
|
28
|
24
|
26
|
39
|
30
|
12
|
15
|
21
|
20
|
24
|
39
|
38
|
40
|
35
|
28
|
25
|
33
|
41
|
36
|
28
|
21
|
30
|
35
|
35
|
37
|
40
|
46
|
45
|
45
|
|
|
2024/08
|
18
|
20
|
25
|
32
|
26
|
32
|
34
|
30
|
33
|
29
|
26
|
17
|
16
|
20
|
22
|
21
|
16
|
18
|
28
|
26
|
19
|
16
|
19
|
27
|
28
|
32
|
35
|
40
|
34
|
31
|
30
|
|
2024/07
|
22
|
13
|
17
|
21
|
20
|
19
|
22
|
20
|
23
|
25
|
25
|
25
|
26
|
20
|
24
|
21
|
18
|
15
|
15
|
27
|
25
|
19
|
18
|
28
|
32
|
43
|
35
|
13
|
13
|
12
|
15
|
|
2024/06
|
16
|
19
|
24
|
16
|
9
|
16
|
21
|
23
|
19
|
19
|
17
|
21
|
24
|
19
|
18
|
18
|
18
|
15
|
18
|
22
|
20
|
19
|
18
|
12
|
11
|
14
|
18
|
20
|
20
|
17
|
|
|
2024/05
|
11
|
19
|
23
|
26
|
16
|
25
|
30
|
41
|
36
|
43
|
38
|
24
|
55
|
53
|
52
|
57
|
56
|
44
|
13
|
16
|
16
|
31
|
34
|
36
|
29
|
18
|
20
|
23
|
29
|
28
|
12
|
|
2024/04
|
53
|
55
|
46
|
24
|
14
|
11
|
10
|
19
|
35
|
41
|
48
|
56
|
52
|
50
|
54
|
53
|
43
|
26
|
33
|
23
|
15
|
23
|
25
|
39
|
47
|
26
|
29
|
36
|
42
|
24
|
|
|
2024/03
|
49
|
49
|
46
|
28
|
38
|
43
|
54
|
53
|
52
|
29
|
23
|
41
|
42
|
23
|
20
|
38
|
50
|
30
|
30
|
68
|
78
|
48
|
46
|
48
|
44
|
27
|
60
|
37
|
45
|
56
|
53
|
|
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