Air Quality
Excellent
No health implications.
20
PM2.5
31
PM10
20
O3
0.6
CO
7
SO2
16
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
13 Mar
54
Good
Fri
14 Mar
35
Excellent
Sat
15 Mar
40
Excellent
Sun
16 Mar
42
Excellent
Mon
17 Mar
58
Good
Tue
18 Mar
58
Good
Wed
19 Mar
18
Excellent
Air quality in the last 12 months (Lechang)
|
2025/01
|
90
|
83
|
95
|
105
|
141
|
121
|
94
|
93
|
75
|
39
|
44
|
52
|
58
|
54
|
76
|
61
|
58
|
57
|
66
|
67
|
69
|
78
|
75
|
124
|
77
|
18
|
37
|
55
|
136
|
92
|
81
|
|
2024/12
|
59
|
62
|
61
|
91
|
94
|
51
|
27
|
44
|
89
|
83
|
37
|
45
|
64
|
74
|
50
|
49
|
55
|
55
|
73
|
75
|
76
|
84
|
85
|
85
|
89
|
108
|
118
|
116
|
80
|
85
|
90
|
|
2024/11
|
53
|
64
|
65
|
67
|
59
|
62
|
44
|
54
|
56
|
74
|
60
|
54
|
62
|
68
|
32
|
38
|
30
|
10
|
13
|
29
|
33
|
42
|
41
|
48
|
56
|
20
|
37
|
48
|
48
|
60
|
|
|
2024/10
|
31
|
32
|
42
|
46
|
45
|
53
|
81
|
71
|
51
|
41
|
52
|
57
|
58
|
87
|
61
|
31
|
45
|
48
|
31
|
19
|
28
|
28
|
23
|
35
|
44
|
60
|
28
|
21
|
45
|
53
|
51
|
|
2024/09
|
31
|
31
|
31
|
32
|
37
|
23
|
14
|
19
|
18
|
28
|
33
|
48
|
47
|
40
|
22
|
28
|
41
|
40
|
44
|
35
|
23
|
21
|
34
|
33
|
31
|
37
|
42
|
38
|
44
|
34
|
|
|
2024/08
|
18
|
23
|
30
|
38
|
42
|
29
|
34
|
36
|
32
|
33
|
31
|
20
|
16
|
22
|
20
|
21
|
22
|
21
|
22
|
30
|
17
|
25
|
25
|
33
|
31
|
29
|
35
|
34
|
35
|
48
|
43
|
|
2024/07
|
23
|
21
|
18
|
24
|
24
|
24
|
21
|
18
|
22
|
21
|
21
|
19
|
20
|
25
|
24
|
15
|
18
|
21
|
24
|
22
|
20
|
23
|
21
|
34
|
49
|
36
|
15
|
12
|
11
|
19
|
16
|
|
2024/06
|
16
|
12
|
34
|
20
|
11
|
22
|
36
|
41
|
31
|
21
|
19
|
23
|
23
|
18
|
12
|
13
|
20
|
13
|
22
|
26
|
20
|
31
|
20
|
16
|
22
|
32
|
28
|
19
|
20
|
21
|
|
|
2024/05
|
11
|
24
|
27
|
24
|
15
|
29
|
35
|
45
|
58
|
58
|
40
|
29
|
53
|
52
|
46
|
52
|
60
|
40
|
21
|
18
|
27
|
26
|
25
|
23
|
18
|
23
|
17
|
28
|
26
|
35
|
28
|
|
2024/04
|
48
|
52
|
39
|
27
|
9
|
12
|
12
|
19
|
34
|
41
|
57
|
68
|
62
|
50
|
58
|
53
|
34
|
33
|
21
|
14
|
15
|
34
|
39
|
35
|
29
|
22
|
28
|
27
|
24
|
21
|
|
|
2024/03
|
58
|
40
|
41
|
14
|
34
|
67
|
67
|
53
|
48
|
33
|
22
|
38
|
53
|
37
|
32
|
37
|
55
|
44
|
23
|
65
|
68
|
50
|
40
|
37
|
30
|
24
|
42
|
29
|
33
|
44
|
41
|
|
2024/02
|
51
|
27
|
23
|
11
|
26
|
16
|
14
|
37
|
63
|
98
|
67
|
64
|
49
|
45
|
48
|
26
|
42
|
28
|
33
|
33
|
32
|
11
|
11
|
15
|
21
|
15
|
22
|
17
|
17
|
||
|
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