Air Quality
Excellent
No health implications.
3
PM2.5
9
PM10
34
O3
0.6
CO
7
SO2
5
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
18 Nov
50
Excellent
Tue
19 Nov
54
Good
Wed
20 Nov
57
Good
Thu
21 Nov
50
Excellent
Fri
22 Nov
62
Good
Sat
23 Nov
59
Good
Air quality in the last 12 months (Lechang)
|
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
|
||
|
2024/01
|
108
|
71
|
42
|
52
|
76
|
74
|
59
|
54
|
40
|
52
|
73
|
59
|
66
|
69
|
116
|
111
|
107
|
58
|
42
|
13
|
28
|
15
|
45
|
45
|
55
|
55
|
55
|
65
|
61
|
57
|
56
|
|
2023/12
|
59
|
48
|
37
|
25
|
33
|
41
|
47
|
57
|
75
|
75
|
47
|
17
|
38
|
44
|
40
|
18
|
32
|
20
|
20
|
46
|
37
|
65
|
51
|
54
|
54
|
60
|
60
|
73
|
84
|
109
|
108
|
|
2023/11
|
49
|
50
|
64
|
67
|
58
|
26
|
31
|
48
|
57
|
23
|
11
|
9
|
15
|
33
|
42
|
30
|
56
|
61
|
57
|
55
|
58
|
62
|
67
|
67
|
74
|
81
|
76
|
66
|
73
|
76
|
|
|
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