Numatacho Oaza Tomo, Hiroshima, Hiroshima, Japan Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
March Air Quality Analysis
Numatacho Oaza Tomo, Hiroshima, Hiroshima, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (10th March):
On this day, AQI across the 5 years varied significantly: 2026 ranks 3rd highest AQI at 58 of Moderate air quality, showing improvement over 2023 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 9th Mar - 10th Mar 2026
Numatacho Oaza Tomo, Hiroshima, Hiroshima, Japan
6 AM9th Mar 2026
6 PM
5 AM10th Mar 2026
60AQI
30AQI
81AQI
30AQI
In the last 24 hours,
Numatacho Oaza Tomo's AQI reached its highest point of 81 at 12 AM during the Night, while the lowest point, 30, was recorded at 10 PM during the Night between 9th Mar and 10th Mar 2026.
Day & Night AQI Trend : Feb - Mar 2026
Numatacho Oaza Tomo, Hiroshima, Hiroshima, Japan
0°C-5/6°C
4°C-2/8°C
7°C5/10°C
5°C2/11°C
6°C1/12°C
7°C2/12°C
11°C8/15°C
8°C5/13°C
5°C2/10°C
5°C2/10°C
4°C0/8°C
7°C3/12°C
7°C2/13°C
10°C5/15°C
9°C4/14°C
9°C4/15°C
10°C8/11°C
11°C8/16°C
12°C10/13°C
9°C4/12°C
8°C2/15°C
9°C7/14°C
10°C7/13°C
7°C4/10°C
6°C1/13°C
7°C4/9°C
5°C2/9°C
5°C1/10°C
5°C1/9°C
5°C1/10°C
64AQI
34AQI
57AQI
35AQI
2026 Days Vs Air Quality
Numatacho Oaza Tomo, Hiroshima, Hiroshima, Japan
87%
60
13%
9
Total number of days with different AQI categories in last 70 days in 2026 (295 days remaining)
Under WHO’s Safe Air Quality Limits: 87%
Health Risk Level:
Low
In 2026, 87% of 70 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Numatacho Oaza Tomo, Hiroshima, Hiroshima, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
24AQI (US)
18AQI (US)
22AQI (US)
29AQI (US)
42AQI (US)
26AQI (US)
31AQI (US)
23AQI (US)
21AQI (US)
39AQI (US)
19AQI (US)
20AQI (US)
33AQI (US)
23AQI (US)
32AQI (US)
43AQI (US)
48AQI (US)
51AQI (US)
45AQI (US)
13AQI (US)
11AQI (US)
23AQI (US)
39AQI (US)
40AQI (US)
41AQI (US)
27AQI (US)
34AQI (US)
28AQI (US)
20AQI (US)
39AQI (US)
29AQI (US)
42AQI (US)
40AQI (US)
30AQI (US)
32AQI (US)
39AQI (US)
40AQI (US)
22AQI (US)
25AQI (US)
32AQI (US)
36AQI (US)
48AQI (US)
42AQI (US)
50AQI (US)
61AQI (US)
52AQI (US)
48AQI (US)
28AQI (US)
30AQI (US)
37AQI (US)
35AQI (US)
53AQI (US)
45AQI (US)
27AQI (US)
18AQI (US)
20AQI (US)
7AQI (US)
47AQI (US)
45AQI (US)
42AQI (US)
78AQI (US)
41AQI (US)
59AQI (US)
56AQI (US)
52AQI (US)
49AQI (US)
43AQI (US)
50AQI (US)
58AQI (US)
30AQI (US)
37AQI (US)
53AQI (US)
No. of days
202636AQI (US)
Highest AQI (US) recorded in
March53AQI (US)
Lowest AQI (US) recorded in
January30AQI (US)
202539AQI (US)
Highest AQI (US) recorded in
July48AQI (US)
Lowest AQI (US) recorded in
April26AQI (US)
202436AQI (US)
Highest AQI (US) recorded in
May44AQI (US)
Lowest AQI (US) recorded in
December27AQI (US)
202338AQI (US)
Highest AQI (US) recorded in
April47AQI (US)
Lowest AQI (US) recorded in
December31AQI (US)
202237AQI (US)
Highest AQI (US) recorded in
May48AQI (US)
Lowest AQI (US) recorded in
December28AQI (US)
202136AQI (US)
Highest AQI (US) recorded in
June46AQI (US)
Lowest AQI (US) recorded in
December31AQI (US)
202035AQI (US)
Highest AQI (US) recorded in
August53AQI (US)
Lowest AQI (US) recorded in
December27AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Numatacho Oaza Tomo's annual 2026 AQI (US) (36) shows an average percentage change of -2.008% (improved AQI (US)) compared to previous years: 2020 (35), 2021 (36), 2022 (37), 2023 (38), 2024 (36), 2025 (39).