Air Quality
Excellent
No health implications.
14
PM2.5
41
PM10
90
O3
0.3
CO
3
SO2
12
NO2
No health implications.
Advise
Everyone can continue their outdoor activities normally.
Air Quality
Today
19 Apr
56
Good
Sat
20 Apr
60
Good
Sun
21 Apr
57
Good
Mon
22 Apr
50
Excellent
Tue
23 Apr
49
Excellent
Wed
24 Apr
48
Excellent
Air quality in the last 12 months (Changle)
|
2024/02
|
38
|
23
|
24
|
16
|
21
|
26
|
18
|
28
|
54
|
80
|
51
|
49
|
50
|
64
|
72
|
23
|
30
|
45
|
24
|
37
|
33
|
13
|
16
|
20
|
19
|
29
|
27
|
45
|
45
|
||
|
2024/01
|
84
|
57
|
46
|
38
|
52
|
58
|
100
|
54
|
51
|
57
|
77
|
78
|
48
|
40
|
81
|
32
|
38
|
46
|
34
|
36
|
20
|
21
|
27
|
28
|
45
|
57
|
71
|
71
|
58
|
35
|
40
|
|
2023/12
|
41
|
42
|
42
|
37
|
23
|
32
|
46
|
55
|
59
|
55
|
60
|
20
|
26
|
33
|
49
|
15
|
29
|
33
|
22
|
15
|
46
|
37
|
37
|
41
|
44
|
52
|
47
|
38
|
37
|
57
|
73
|
|
2023/11
|
29
|
33
|
31
|
37
|
44
|
47
|
28
|
35
|
38
|
31
|
19
|
20
|
23
|
29
|
35
|
28
|
47
|
57
|
55
|
47
|
43
|
41
|
40
|
67
|
33
|
27
|
43
|
49
|
62
|
60
|
|
|
2023/10
|
29
|
37
|
33
|
38
|
31
|
23
|
20
|
19
|
24
|
24
|
31
|
31
|
30
|
34
|
44
|
50
|
49
|
45
|
41
|
33
|
26
|
26
|
29
|
31
|
30
|
23
|
27
|
36
|
33
|
32
|
30
|
|
2023/09
|
29
|
21
|
13
|
15
|
14
|
13
|
23
|
27
|
30
|
32
|
30
|
24
|
30
|
40
|
28
|
43
|
54
|
30
|
15
|
24
|
22
|
20
|
21
|
27
|
26
|
26
|
25
|
26
|
24
|
28
|
|
|
2023/08
|
34
|
37
|
36
|
41
|
49
|
50
|
51
|
29
|
35
|
35
|
32
|
21
|
26
|
31
|
25
|
36
|
41
|
39
|
24
|
27
|
34
|
29
|
28
|
43
|
36
|
18
|
19
|
31
|
24
|
15
|
28
|
|
2023/07
|
17
|
17
|
22
|
26
|
33
|
37
|
46
|
45
|
51
|
38
|
31
|
24
|
34
|
30
|
16
|
16
|
15
|
28
|
27
|
31
|
31
|
33
|
32
|
31
|
12
|
18
|
24
|
23
|
18
|
27
|
29
|
|
2023/06
|
22
|
40
|
46
|
45
|
45
|
37
|
32
|
25
|
18
|
24
|
39
|
33
|
37
|
29
|
39
|
37
|
23
|
35
|
33
|
36
|
38
|
37
|
32
|
26
|
28
|
22
|
27
|
32
|
26
|
16
|
|
|
2023/05
|
54
|
50
|
44
|
34
|
23
|
29
|
24
|
31
|
36
|
37
|
34
|
50
|
53
|
59
|
70
|
48
|
38
|
33
|
43
|
33
|
39
|
32
|
60
|
63
|
57
|
49
|
35
|
24
|
12
|
20
|
18
|
|
2023/04
|
30
|
37
|
38
|
61
|
26
|
20
|
23
|
53
|
34
|
40
|
62
|
66
|
141
|
85
|
53
|
59
|
73
|
51
|
28
|
26
|
26
|
50
|
59
|
52
|
26
|
32
|
45
|
46
|
48
|
39
|
|
|
2023/03
|
49
|
59
|
40
|
48
|
58
|
50
|
55
|
55
|
54
|
47
|
42
|
51
|
55
|
48
|
55
|
45
|
40
|
28
|
30
|
43
|
62
|
56
|
35
|
23
|
19
|
21
|
57
|
47
|
40
|
31
|
31
|
|
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