• October 21, 2026
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Last updated on October 1st, 2026 at 09:46 am

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Air Quality Tochigi Prefecture

Tochigi Prefecture AQI – Detailed Air Quality

Display current air quality index and forecast for the upcoming days in Tochigi Prefecture.

Today’s Air Quality Index (AQI)
Real-time PM2.5, PM10 air pollution level in Utsunomiya, Tochigi Capital
12:06 PM, October 21, 2026
Last updated on: 12:06 PM
Live AQI 16
Air Quality is Good
PM₂.₅: 3.21µg/m³ PM₁₀: 5.39µg/m³
Good Air is clean and safe. No health risks expected. Everyone can enjoy outdoor activities without concern.
Good Moderate Poor Unhealthy Severe Hazardous 0 50 100 150 200 250 300+
Air Quality Hourly Forecast
14
Min at 3:00 PM on Oct 21
31
Max at 9:00 AM on Oct 22, 2026

Tochigi Prefecture Historical Air Quality Data

Display historical AQI data calendar by selecting a specific date and location Tochigi Prefecture.

Utsunomiya, Tochigi Capital Historical Air Quality Data

Explore historical AQI data and pollutant changes over time.
Oct 21, 2026 12:06 PM
SUNMONTUEWEDTHUFRISAT
30
71
Moderate
PM2.5: 16
AQI
71
Air Quality is Moderate Air is acceptable, but sensitive individuals should closely monitor their symptoms.
PM₂.₅ 16 µg/m3
PM₁₀ 19 µg/m3
SO₂ 12 µg/m3
NO₂ 34 µg/m3
O₃ 11 µg/m3
CO 227 µg/m3
AQI Hourly Forecast Graph
40
Min at 1:00 AM on Aug 30
101
Max at 7:00 PM on Aug 30, 2026
31
67
Moderate
PM2.5: 15
AQI
67
Air Quality is Moderate Air is acceptable, but sensitive individuals should closely monitor their symptoms.
PM₂.₅ 15 µg/m3
PM₁₀ 23 µg/m3
SO₂ 11 µg/m3
NO₂ 30 µg/m3
O₃ 26 µg/m3
CO 205 µg/m3
AQI Hourly Forecast Graph
46
Min at 3:00 PM on Aug 31
104
Max at 2:00 AM on Aug 31, 2026
01
77
Moderate
PM2.5: 18
AQI
77
Air Quality is Moderate Air is acceptable, but sensitive individuals should closely monitor their symptoms.
PM₂.₅ 18 µg/m3
PM₁₀ 27 µg/m3
SO₂ 15 µg/m3
NO₂ 41 µg/m3
O₃ 29 µg/m3
CO 238 µg/m3
AQI Hourly Forecast Graph
36
Min at 3:00 AM on Sep 1
110
Max at 12:00 AM on Sep 1, 2026
02
64
Moderate
PM2.5: 14
AQI
64
Air Quality is Moderate Air is acceptable, but sensitive individuals should closely monitor their symptoms.
PM₂.₅ 14 µg/m3
PM₁₀ 20 µg/m3
SO₂ 8 µg/m3
NO₂ 21 µg/m3
O₃ 31 µg/m3
CO 197 µg/m3
AQI Hourly Forecast Graph
53
Min at 1:00 PM on Sep 2
112
Max at 1:00 AM on Sep 2, 2026
03
58
Moderate
PM2.5: 12
AQI
58
Air Quality is Moderate Air is acceptable, but sensitive individuals should closely monitor their symptoms.
PM₂.₅ 12 µg/m3
PM₁₀ 14 µg/m3
SO₂ 8 µg/m3
NO₂ 26 µg/m3
O₃ 23 µg/m3
CO 214 µg/m3
AQI Hourly Forecast Graph
40
Min at 7:00 AM on Sep 3
77
Max at 12:00 AM on Sep 3, 2026
04
100
Moderate
PM2.5: 25
AQI
100
Air Quality is Moderate Air is acceptable, but sensitive individuals should closely monitor their symptoms.
PM₂.₅ 25 µg/m3
PM₁₀ 27 µg/m3
SO₂ 10 µg/m3
NO₂ 38 µg/m3
O₃ 21 µg/m3
CO 259 µg/m3
AQI Hourly Forecast Graph
34
Min at 10:00 PM on Sep 4
138
Max at 8:00 AM on Sep 4, 2026
05
25
Good
PM2.5: 5
AQI
25
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 5 µg/m3
PM₁₀ 8 µg/m3
SO₂ 6 µg/m3
NO₂ 17 µg/m3
O₃ 46 µg/m3
CO 177 µg/m3
AQI Hourly Forecast Graph
18
Min at 7:00 AM on Sep 5
33
Max at 1:00 AM on Sep 5, 2026
06
10
Good
PM2.5: 2
AQI
10
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 2 µg/m3
PM₁₀ 3 µg/m3
SO₂ 3 µg/m3
NO₂ 11 µg/m3
O₃ 42 µg/m3
CO 172 µg/m3
AQI Hourly Forecast Graph
6
Min at 5:00 PM on Sep 6
18
Max at 1:00 AM on Sep 6, 2026
07
45
Good
PM2.5: 9
AQI
45
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 9 µg/m3
PM₁₀ 11 µg/m3
SO₂ 14 µg/m3
NO₂ 42 µg/m3
O₃ 3 µg/m3
CO 300 µg/m3
AQI Hourly Forecast Graph
17
Min at 1:00 AM on Sep 7
57
Max at 5:00 PM on Sep 7, 2026
08
35
Good
PM2.5: 7
AQI
35
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 7 µg/m3
PM₁₀ 8 µg/m3
SO₂ 5 µg/m3
NO₂ 14 µg/m3
O₃ 28 µg/m3
CO 229 µg/m3
AQI Hourly Forecast Graph
18
Min at 6:00 PM on Sep 8
59
Max at 2:00 AM on Sep 8, 2026
09
25
Good
PM2.5: 5
AQI
25
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 5 µg/m3
PM₁₀ 7 µg/m3
SO₂ 5 µg/m3
NO₂ 14 µg/m3
O₃ 39 µg/m3
CO 206 µg/m3
AQI Hourly Forecast Graph
12
Min at 7:00 PM on Sep 9
42
Max at 1:00 PM on Sep 9, 2026
10
30
Good
PM2.5: 6
AQI
30
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 6 µg/m3
PM₁₀ 8 µg/m3
SO₂ 7 µg/m3
NO₂ 24 µg/m3
O₃ 18 µg/m3
CO 281 µg/m3
AQI Hourly Forecast Graph
15
Min at 1:00 AM on Sep 10
39
Max at 12:00 AM on Sep 10, 2026
11
50
Good
PM2.5: 10
AQI
50
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 10 µg/m3
PM₁₀ 13 µg/m3
SO₂ 8 µg/m3
NO₂ 31 µg/m3
O₃ 3 µg/m3
CO 300 µg/m3
AQI Hourly Forecast Graph
38
Min at 1:00 AM on Sep 11
69
Max at 12:00 AM on Sep 11, 2026
12
54
Moderate
PM2.5: 11
AQI
54
Air Quality is Moderate Air is acceptable, but sensitive individuals should closely monitor their symptoms.
PM₂.₅ 11 µg/m3
PM₁₀ 15 µg/m3
SO₂ 8 µg/m3
NO₂ 27 µg/m3
O₃ 17 µg/m3
CO 276 µg/m3
AQI Hourly Forecast Graph
44
Min at 12:00 PM on Sep 12
73
Max at 1:00 AM on Sep 12, 2026
13
74
Moderate
PM2.5: 17
AQI
74
Air Quality is Moderate Air is acceptable, but sensitive individuals should closely monitor their symptoms.
PM₂.₅ 17 µg/m3
PM₁₀ 19 µg/m3
SO₂ 6 µg/m3
NO₂ 19 µg/m3
O₃ 25 µg/m3
CO 272 µg/m3
AQI Hourly Forecast Graph
49
Min at 4:00 AM on Sep 13
103
Max at 12:00 PM on Sep 13, 2026
14
25
Good
PM2.5: 5
AQI
25
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 5 µg/m3
PM₁₀ 7 µg/m3
SO₂ 3 µg/m3
NO₂ 8 µg/m3
O₃ 33 µg/m3
CO 124 µg/m3
AQI Hourly Forecast Graph
8
Min at 10:00 PM on Sep 14
57
Max at 1:00 AM on Sep 14, 2026
15
30
Good
PM2.5: 6
AQI
30
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 6 µg/m3
PM₁₀ 7 µg/m3
SO₂ 9 µg/m3
NO₂ 30 µg/m3
O₃ 12 µg/m3
CO 191 µg/m3
AQI Hourly Forecast Graph
9
Min at 1:00 AM on Sep 15
54
Max at 8:00 PM on Sep 15, 2026
16
20
Good
PM2.5: 4
AQI
20
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 4 µg/m3
PM₁₀ 5 µg/m3
SO₂ 5 µg/m3
NO₂ 19 µg/m3
O₃ 29 µg/m3
CO 186 µg/m3
AQI Hourly Forecast Graph
15
Min at 4:00 PM on Sep 16
40
Max at 1:00 AM on Sep 16, 2026
17
30
Good
PM2.5: 6
AQI
30
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 6 µg/m3
PM₁₀ 9 µg/m3
SO₂ 7 µg/m3
NO₂ 16 µg/m3
O₃ 63 µg/m3
CO 164 µg/m3
AQI Hourly Forecast Graph
20
Min at 12:00 AM on Sep 17
41
Max at 11:00 AM on Sep 17, 2026
18
20
Good
PM2.5: 4
AQI
20
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 4 µg/m3
PM₁₀ 7 µg/m3
SO₂ 5 µg/m3
NO₂ 13 µg/m3
O₃ 61 µg/m3
CO 148 µg/m3
AQI Hourly Forecast Graph
16
Min at 7:00 AM on Sep 18
23
Max at 3:00 PM on Sep 18, 2026
19
25
Good
PM2.5: 5
AQI
25
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 5 µg/m3
PM₁₀ 7 µg/m3
SO₂ 5 µg/m3
NO₂ 17 µg/m3
O₃ 35 µg/m3
CO 159 µg/m3
AQI Hourly Forecast Graph
14
Min at 6:00 AM on Sep 19
34
Max at 5:00 PM on Sep 19, 2026
20
15
Good
PM2.5: 3
AQI
15
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 3 µg/m3
PM₁₀ 3 µg/m3
SO₂ 3 µg/m3
NO₂ 13 µg/m3
O₃ 41 µg/m3
CO 154 µg/m3
AQI Hourly Forecast Graph
6
Min at 12:00 PM on Sep 20
31
Max at 1:00 AM on Sep 20, 2026
21
15
Good
PM2.5: 3
AQI
15
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 3 µg/m3
PM₁₀ 3 µg/m3
SO₂ 4 µg/m3
NO₂ 13 µg/m3
O₃ 16 µg/m3
CO 147 µg/m3
AQI Hourly Forecast Graph
7
Min at 10:00 AM on Sep 21
23
Max at 3:00 AM on Sep 21, 2026
22
54
Moderate
PM2.5: 11
AQI
54
Air Quality is Moderate Air is acceptable, but sensitive individuals should closely monitor their symptoms.
PM₂.₅ 11 µg/m3
PM₁₀ 16 µg/m3
SO₂ 12 µg/m3
NO₂ 32 µg/m3
O₃ 32 µg/m3
CO 219 µg/m3
AQI Hourly Forecast Graph
24
Min at 1:00 AM on Sep 22
67
Max at 11:00 AM on Sep 22, 2026
23
58
Moderate
PM2.5: 12
AQI
58
Air Quality is Moderate Air is acceptable, but sensitive individuals should closely monitor their symptoms.
PM₂.₅ 12 µg/m3
PM₁₀ 15 µg/m3
SO₂ 9 µg/m3
NO₂ 27 µg/m3
O₃ 19 µg/m3
CO 220 µg/m3
AQI Hourly Forecast Graph
45
Min at 6:00 AM on Sep 23
83
Max at 12:00 AM on Sep 23, 2026
24
150
Poor
PM2.5: 50
AQI
150
Air Quality is Poor Air may cause discomfort. Sensitive groups should reduce outdoor exposure.
PM₂.₅ 50 µg/m3
PM₁₀ 53 µg/m3
SO₂ 19 µg/m3
NO₂ 40 µg/m3
O₃ 58 µg/m3
CO 338 µg/m3
AQI Hourly Forecast Graph
78
Min at 2:00 AM on Sep 24
190
Max at 6:00 PM on Sep 24, 2026
25
93
Moderate
PM2.5: 23
AQI
93
Air Quality is Moderate Air is acceptable, but sensitive individuals should closely monitor their symptoms.
PM₂.₅ 23 µg/m3
PM₁₀ 27 µg/m3
SO₂ 12 µg/m3
NO₂ 31 µg/m3
O₃ 41 µg/m3
CO 257 µg/m3
AQI Hourly Forecast Graph
52
Min at 12:00 PM on Sep 25
173
Max at 1:00 AM on Sep 25, 2026
26
30
Good
PM2.5: 6
AQI
30
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 6 µg/m3
PM₁₀ 7 µg/m3
SO₂ 4 µg/m3
NO₂ 16 µg/m3
O₃ 25 µg/m3
CO 170 µg/m3
AQI Hourly Forecast Graph
17
Min at 9:00 AM on Sep 26
82
Max at 1:00 AM on Sep 26, 2026
27
58
Moderate
PM2.5: 12
AQI
58
Air Quality is Moderate Air is acceptable, but sensitive individuals should closely monitor their symptoms.
PM₂.₅ 12 µg/m3
PM₁₀ 14 µg/m3
SO₂ 12 µg/m3
NO₂ 36 µg/m3
O₃ 21 µg/m3
CO 220 µg/m3
AQI Hourly Forecast Graph
32
Min at 2:00 AM on Sep 27
86
Max at 4:00 PM on Sep 27, 2026
28
25
Good
PM2.5: 5
AQI
25
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 5 µg/m3
PM₁₀ 6 µg/m3
SO₂ 4 µg/m3
NO₂ 16 µg/m3
O₃ 8 µg/m3
CO 189 µg/m3
AQI Hourly Forecast Graph
16
Min at 7:00 AM on Sep 28
42
Max at 1:00 AM on Sep 28, 2026
29
67
Moderate
PM2.5: 15
AQI
67
Air Quality is Moderate Air is acceptable, but sensitive individuals should closely monitor their symptoms.
PM₂.₅ 15 µg/m3
PM₁₀ 16 µg/m3
SO₂ 18 µg/m3
NO₂ 58 µg/m3
O₃ 2 µg/m3
CO 353 µg/m3
AQI Hourly Forecast Graph
43
Min at 12:00 AM on Sep 29
80
Max at 4:00 PM on Sep 29, 2026
30
40
Good
PM2.5: 8
AQI
40
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 8 µg/m3
PM₁₀ 11 µg/m3
SO₂ 6 µg/m3
NO₂ 24 µg/m3
O₃ 30 µg/m3
CO 200 µg/m3
AQI Hourly Forecast Graph
31
Min at 5:00 AM on Sep 30
57
Max at 12:00 AM on Sep 30, 2026
01
121
Poor
PM2.5: 35
AQI
121
Air Quality is Poor Air may cause discomfort. Sensitive groups should reduce outdoor exposure.
PM₂.₅ 35 µg/m3
PM₁₀ 39 µg/m3
SO₂ 12 µg/m3
NO₂ 23 µg/m3
O₃ 74 µg/m3
CO 253 µg/m3
AQI Hourly Forecast Graph
55
Min at 2:00 AM on Oct 1
149
Max at 11:00 PM on Oct 1, 2026
02
61
Moderate
PM2.5: 13
AQI
61
Air Quality is Moderate Air is acceptable, but sensitive individuals should closely monitor their symptoms.
PM₂.₅ 13 µg/m3
PM₁₀ 16 µg/m3
SO₂ 10 µg/m3
NO₂ 32 µg/m3
O₃ 28 µg/m3
CO 226 µg/m3
AQI Hourly Forecast Graph
36
Min at 9:00 AM on Oct 2
141
Max at 1:00 AM on Oct 2, 2026
03
35
Good
PM2.5: 7
AQI
35
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 7 µg/m3
PM₁₀ 14 µg/m3
SO₂ 8 µg/m3
NO₂ 20 µg/m3
O₃ 49 µg/m3
CO 186 µg/m3
AQI Hourly Forecast Graph
26
Min at 11:00 AM on Oct 3
51
Max at 12:00 AM on Oct 3, 2026

Tochigi Prefecture Historical Weather Data

Display historical weather data by selecting a specific date and location Tochigi Prefecture.

Display historical weather data by selecting a specific date and location Tochigi Prefecture.

Utsunomiya, Tochigi CapitalOct 20, 2026
weather image
21 °C | °F
Heavy rain at times
Max 24 °
Min 18 °
Humidity 68 %
Wind 41 Km/h
Visibility 10 km
UV Index 0.4
Sunrise 5:52 AM
Sunset 4:58 PM
Moon Phase 77
Precipitation 4.4 mm
Snow 0 mm/h
Rain Chance 100%
Historical Weather from WeatherAPI

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