Air Quality
Excellent
No health implications.
3
PM2.5
13
PM10
25
O3
0.4
CO
6
SO2
7
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
21 Aug
52
Good
Fri
22 Aug
62
Good
Sat
23 Aug
65
Good
Sun
24 Aug
59
Good
Mon
25 Aug
58
Good
Tue
26 Aug
44
Excellent
Wed
27 Aug
18
Excellent
Lechang Air quality rank
Air quality in the last 12 months (Lechang)
|
2025/06
|
24
|
21
|
23
|
36
|
38
|
36
|
32
|
25
|
31
|
34
|
25
|
23
|
29
|
15
|
13
|
30
|
9
|
9
|
15
|
16
|
18
|
21
|
23
|
31
|
34
|
24
|
19
|
16
|
22
|
21
|
|
|
2025/05
|
57
|
54
|
45
|
35
|
22
|
31
|
44
|
30
|
21
|
47
|
38
|
45
|
47
|
49
|
39
|
33
|
18
|
13
|
17
|
20
|
23
|
23
|
24
|
36
|
59
|
52
|
51
|
43
|
14
|
26
|
23
|
|
2025/04
|
43
|
51
|
55
|
69
|
78
|
72
|
67
|
73
|
86
|
38
|
53
|
118
|
210
|
131
|
88
|
79
|
85
|
68
|
29
|
27
|
35
|
34
|
35
|
25
|
19
|
29
|
31
|
25
|
52
|
58
|
|
|
2025/03
|
36
|
34
|
35
|
15
|
14
|
16
|
41
|
45
|
48
|
66
|
60
|
52
|
40
|
36
|
11
|
26
|
49
|
36
|
46
|
50
|
53
|
58
|
70
|
83
|
87
|
67
|
50
|
58
|
20
|
11
|
22
|
|
2025/02
|
47
|
15
|
17
|
41
|
57
|
55
|
32
|
61
|
35
|
48
|
60
|
65
|
66
|
81
|
98
|
50
|
33
|
35
|
47
|
39
|
22
|
27
|
12
|
46
|
71
|
87
|
81
|
55
|
|||
|
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
|
|
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