Air Quality
Good
Some pollutants may slightly affect very few hypersensitive individuals.
40
PM2.5
75
*
PM10
120
O3
0.7
CO
10
SO2
26
NO2
Some pollutants may slightly affect very few hypersensitive individuals.
Advise
Only very few hypersensitive people should reduce outdoor activities.
Air Quality
Today
19 Dec
80
Good
Sat
20 Dec
88
Good
Sun
21 Dec
83
Good
Mon
22 Dec
58
Good
Tue
23 Dec
58
Good
Wed
24 Dec
62
Good
Thu
25 Dec
21
Excellent
Air quality in the last 12 months (Shinshu)
|
2025/11
|
49
|
48
|
58
|
34
|
31
|
40
|
42
|
35
|
18
|
41
|
46
|
22
|
43
|
49
|
63
|
62
|
52
|
28
|
38
|
44
|
50
|
55
|
61
|
55
|
68
|
80
|
79
|
75
|
59
|
56
|
|
|
2025/10
|
43
|
41
|
41
|
41
|
37
|
38
|
44
|
50
|
40
|
41
|
45
|
46
|
44
|
49
|
46
|
38
|
32
|
37
|
18
|
29
|
32
|
30
|
36
|
32
|
42
|
57
|
43
|
51
|
45
|
40
|
35
|
|
2025/09
|
24
|
35
|
30
|
36
|
36
|
32
|
30
|
30
|
31
|
21
|
22
|
27
|
26
|
22
|
32
|
33
|
32
|
31
|
26
|
28
|
24
|
32
|
33
|
19
|
28
|
23
|
38
|
44
|
43
|
46
|
|
|
2025/08
|
40
|
44
|
34
|
28
|
25
|
22
|
23
|
23
|
31
|
39
|
44
|
32
|
22
|
17
|
14
|
22
|
23
|
23
|
29
|
30
|
29
|
18
|
23
|
37
|
43
|
28
|
23
|
19
|
32
|
26
|
27
|
|
2025/07
|
18
|
28
|
29
|
31
|
30
|
28
|
23
|
25
|
25
|
20
|
26
|
20
|
20
|
34
|
38
|
29
|
36
|
34
|
22
|
20
|
16
|
16
|
24
|
21
|
41
|
28
|
18
|
23
|
21
|
33
|
24
|
|
2025/06
|
42
|
28
|
24
|
37
|
39
|
39
|
37
|
33
|
27
|
24
|
20
|
27
|
24
|
26
|
21
|
26
|
32
|
19
|
26
|
22
|
18
|
24
|
24
|
20
|
31
|
35
|
32
|
26
|
36
|
41
|
|
|
2025/05
|
46
|
48
|
54
|
57
|
36
|
47
|
83
|
49
|
27
|
42
|
39
|
43
|
42
|
44
|
61
|
47
|
34
|
27
|
34
|
24
|
27
|
41
|
18
|
42
|
57
|
58
|
56
|
43
|
22
|
31
|
44
|
|
2025/04
|
36
|
46
|
53
|
62
|
57
|
60
|
59
|
58
|
57
|
49
|
45
|
105
|
138
|
90
|
67
|
51
|
54
|
56
|
35
|
32
|
36
|
18
|
21
|
28
|
23
|
30
|
23
|
38
|
55
|
55
|
|
|
2025/03
|
41
|
42
|
44
|
18
|
23
|
22
|
49
|
44
|
60
|
48
|
57
|
54
|
37
|
28
|
16
|
32
|
38
|
36
|
47
|
45
|
42
|
45
|
50
|
61
|
61
|
67
|
64
|
54
|
38
|
43
|
41
|
|
2025/02
|
18
|
14
|
30
|
45
|
41
|
50
|
54
|
49
|
33
|
43
|
51
|
49
|
63
|
76
|
54
|
55
|
61
|
32
|
34
|
17
|
15
|
24
|
18
|
44
|
67
|
60
|
44
|
33
|
|||
|
2025/01
|
74
|
73
|
73
|
65
|
79
|
71
|
77
|
87
|
72
|
41
|
51
|
55
|
56
|
59
|
72
|
59
|
53
|
55
|
55
|
53
|
63
|
63
|
63
|
54
|
41
|
23
|
44
|
68
|
181
|
56
|
42
|
|
2024/12
|
52
|
49
|
58
|
72
|
48
|
23
|
51
|
65
|
49
|
51
|
26
|
33
|
56
|
63
|
57
|
52
|
57
|
56
|
51
|
53
|
59
|
65
|
57
|
63
|
79
|
77
|
100
|
81
|
65
|
71
|
64
|
|
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