优
空气质量令人满意,基本无空气污染
各类人群可正常活动
2020/11
|
46
|
47
|
49
|
34
|
29
|
35
|
39
|
31
|
40
|
49
|
50
|
48
|
52
|
50
|
53
|
60
|
36
|
44
|
46
|
59
|
49
|
36
|
41
|
51
|
54
|
51
|
38
|
34
|
41
|
55
|
|
2020/10
|
34
|
25
|
26
|
30
|
26
|
32
|
43
|
45
|
48
|
53
|
57
|
53
|
47
|
46
|
48
|
51
|
52
|
50
|
52
|
43
|
37
|
47
|
39
|
40
|
38
|
38
|
36
|
40
|
43
|
48
|
50
|
2020/09
|
41
|
41
|
34
|
31
|
31
|
33
|
30
|
28
|
36
|
28
|
27
|
27
|
28
|
31
|
30
|
33
|
31
|
37
|
36
|
41
|
38
|
25
|
26
|
27
|
24
|
29
|
31
|
32
|
40
|
44
|
|
2020/08
|
22
|
29
|
24
|
25
|
29
|
30
|
38
|
31
|
25
|
20
|
21
|
28
|
23
|
26
|
24
|
31
|
36
|
46
|
44
|
46
|
29
|
27
|
24
|
34
|
45
|
52
|
41
|
40
|
28
|
30
|
36
|
2020/07
|
37
|
36
|
36
|
30
|
31
|
28
|
24
|
28
|
26
|
21
|
22
|
29
|
27
|
31
|
31
|
27
|
27
|
30
|
32
|
23
|
22
|
24
|
25
|
22
|
25
|
28
|
34
|
23
|
20
|
23
|
21
|
2020/06
|
33
|
33
|
37
|
38
|
37
|
36
|
37
|
37
|
32
|
37
|
36
|
37
|
26
|
30
|
27
|
28
|
26
|
28
|
25
|
24
|
27
|
29
|
25
|
31
|
25
|
28
|
29
|
33
|
34
|
31
|
|
2020/05
|
42
|
48
|
36
|
29
|
31
|
37
|
37
|
38
|
34
|
39
|
39
|
38
|
30
|
34
|
38
|
35
|
37
|
38
|
38
|
30
|
27
|
31
|
30
|
31
|
28
|
33
|
31
|
34
|
49
|
32
|
31
|
2020/04
|
34
|
34
|
41
|
35
|
38
|
31
|
26
|
28
|
33
|
42
|
36
|
41
|
45
|
43
|
41
|
33
|
31
|
48
|
37
|
40
|
31
|
32
|
30
|
26
|
27
|
30
|
42
|
35
|
32
|
36
|
|
2020/03
|
28
|
26
|
27
|
24
|
23
|
25
|
34
|
37
|
39
|
43
|
41
|
31
|
31
|
33
|
38
|
39
|
30
|
45
|
31
|
26
|
25
|
27
|
32
|
29
|
33
|
31
|
45
|
56
|
56
|
47
|
34
|
2020/02
|
34
|
30
|
27
|
30
|
39
|
29
|
31
|
31
|
30
|
27
|
28
|
35
|
37
|
34
|
40
|
29
|
34
|
24
|
31
|
35
|
28
|
35
|
29
|
28
|
26
|
26
|
24
|
23
|
26
|
||
2020/01
|
42
|
50
|
36
|
37
|
28
|
39
|
53
|
69
|
50
|
41
|
38
|
53
|
69
|
72
|
55
|
46
|
58
|
35
|
38
|
31
|
37
|
49
|
43
|
29
|
27
|
34
|
37
|
34
|
37
|
35
|
31
|
2019/12
|
44
|
50
|
37
|
35
|
46
|
57
|
52
|
49
|
47
|
56
|
44
|
47
|
50
|
47
|
48
|
42
|
41
|
44
|
56
|
63
|
69
|
55
|
46
|
41
|
43
|
47
|
29
|
35
|
48
|
48
|
56
|
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
|