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
|
42
|
38
|
31
|
28
|
31
|
40
|
40
|
41
|
41
|
34
|
44
|
56
|
47
|
45
|
46
|
60
|
34
|
36
|
34
|
42
|
36
|
35
|
40
|
42
|
55
|
33
|
38
|
37
|
37
|
46
|
|
2020/10
|
24
|
22
|
22
|
23
|
28
|
31
|
39
|
37
|
39
|
38
|
38
|
40
|
34
|
35
|
37
|
43
|
41
|
38
|
36
|
30
|
32
|
37
|
33
|
38
|
30
|
33
|
27
|
30
|
33
|
43
|
49
|
2020/09
|
29
|
28
|
28
|
27
|
34
|
32
|
30
|
25
|
22
|
28
|
27
|
28
|
30
|
32
|
28
|
30
|
28
|
27
|
25
|
19
|
21
|
16
|
18
|
16
|
17
|
20
|
27
|
29
|
31
|
24
|
|
2020/08
|
24
|
22
|
21
|
22
|
22
|
20
|
26
|
25
|
27
|
19
|
21
|
24
|
21
|
21
|
24
|
25
|
33
|
37
|
37
|
34
|
20
|
17
|
19
|
25
|
29
|
33
|
31
|
29
|
24
|
30
|
30
|
2020/07
|
37
|
34
|
33
|
26
|
25
|
22
|
18
|
22
|
25
|
20
|
18
|
23
|
25
|
23
|
23
|
26
|
24
|
26
|
27
|
22
|
20
|
23
|
24
|
24
|
24
|
25
|
22
|
23
|
22
|
22
|
21
|
2020/06
|
30
|
38
|
44
|
39
|
26
|
28
|
32
|
39
|
30
|
31
|
33
|
35
|
32
|
26
|
25
|
24
|
24
|
23
|
23
|
23
|
22
|
25
|
25
|
27
|
28
|
26
|
27
|
28
|
28
|
26
|
|
2020/05
|
35
|
40
|
40
|
32
|
35
|
40
|
43
|
46
|
34
|
34
|
41
|
45
|
38
|
34
|
34
|
36
|
38
|
35
|
40
|
34
|
31
|
34
|
30
|
31
|
32
|
35
|
33
|
36
|
34
|
33
|
34
|
2020/04
|
39
|
39
|
40
|
38
|
37
|
36
|
36
|
39
|
38
|
38
|
45
|
39
|
42
|
38
|
34
|
30
|
27
|
34
|
34
|
38
|
35
|
35
|
35
|
35
|
35
|
32
|
37
|
34
|
37
|
33
|
|
2020/03
|
27
|
28
|
32
|
26
|
26
|
29
|
53
|
33
|
25
|
25
|
38
|
27
|
30
|
27
|
38
|
39
|
29
|
34
|
31
|
31
|
34
|
33
|
33
|
31
|
28
|
29
|
27
|
42
|
51
|
37
|
32
|
2020/02
|
36
|
32
|
30
|
31
|
30
|
26
|
28
|
28
|
31
|
30
|
28
|
27
|
28
|
32
|
29
|
24
|
28
|
27
|
24
|
26
|
27
|
30
|
32
|
31
|
31
|
28
|
28
|
25
|
23
|
||
2020/01
|
29
|
30
|
24
|
35
|
28
|
29
|
38
|
41
|
35
|
31
|
34
|
42
|
50
|
40
|
32
|
32
|
43
|
33
|
35
|
28
|
37
|
35
|
34
|
33
|
38
|
32
|
26
|
27
|
30
|
28
|
27
|
2019/12
|
36
|
43
|
29
|
30
|
36
|
42
|
40
|
35
|
38
|
43
|
38
|
33
|
36
|
39
|
38
|
33
|
28
|
29
|
37
|
49
|
37
|
37
|
31
|
29
|
30
|
32
|
29
|
29
|
36
|
36
|
40
|
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
|