Breathing in Kumamoto is Injurious to Health.

Air pollution threatens the health of 1.7 million people across 48 districts in Kumamoto. The average PM2.5 level is 14.8 µg/m³—3.0× higher than the WHO guideline.

AboutMake Air Quality Great AgainAQLI Data

Brought to you by Amrit Sharma

Overview

Air Pollution in Kumamoto

Kumamoto faces significant air pollution challenges. 100% of districts exceed the WHO guideline for clean air. This is putting 1.7 million across 48 districts at risk.

The average PM2.5 over 2023 was 14.8µg/m³. That's 3.0 times the WHO guideline for clean air of 5µg/m³.

This is equivalent of everybody, including children, smoking about 246 cigarettes in a year.

Trends

Air Quality Trend

Annual PM2.5 levels from 2014 to 2023. The WHO guideline for safe air is 5 µg/m³.

Health Impact

Life Expectancy Impact

If Kumamoto met the WHO guideline of 5 µg/m³, the average person would live 0.96 years longer.

That's 1.6M years of life stolen from 1.7 million people. Years of watching children grow up. Years of building a career. Years of quiet mornings and celebrations.

Lives cut short. Breathing kills.

Most Polluted

Districts with Highest Pollution

The top 10 most polluted districts in Kumamoto. These areas face the greatest health burden from air pollution.

  • 1.Kumamoto
    1.1 years lost
  • 2.Kashima
    1.1 years lost
  • 3.Tomiai
    1.1 years lost
  • 4.Jōnan
    1.1 years lost
  • 5.Kōshi
    1.1 years lost
  • 6.Uto
    1 years lost
  • 7.Hikawa
    1 years lost
  • 8.Yatsushiro
    1 years lost
  • 9.Ōzu
    1 years lost
  • 10.Nagasu
    1 years lost
Exposure

Population Exposure by Pollution Level

Distribution of population across different PM2.5 pollution levels. The WHO guideline is 5 µg/m³—only populations below this threshold are breathing safe air.

< 5 µg/m³
0%
0
5-10 µg/m³
1.6%
27K
10-15 µg/m³
40.8%
688K
15-25 µg/m³
57.7%
974K
25-35 µg/m³
0%
0
> 35 µg/m³
0%
0
Districts

All 48 Districts in Kumamoto

Complete air quality data for every district in Kumamoto, sorted by population.

DistrictPopulationPM2.5 µg/m³Years Lost
Kumamoto674K
16.3
1.1 years
Yatsushiro120K
15.4
1.0 years
Amakusa75K
12.3
0.7 years
Tamana63K
14.8
1.0 years
Uki53K
14.8
1.0 years
Yamaga48K
13.6
0.8 years
Kōshi47K
15.7
1.1 years
Kikuchi47K
14.0
0.9 years
Arao43K
14.7
0.9 years
Ōzu42K
15.3
1.0 years
Uto38K
15.6
1.0 years
Kikuyō33K
13.4
0.8 years
Ueki32K
14.6
0.9 years
Hitoyoshi29K
11.1
0.6 years
Mashiki28K
14.9
1.0 years
Aso25K
11.3
0.6 years
Minamata23K
12.4
0.7 years
Kami-Amakusa20K
13.3
0.8 years
Jōnan18K
15.8
1.1 years
Nagasu16K
14.9
1.0 years
Mifune15K
13.8
0.9 years
Tomiai14K
16.1
1.1 years
Ashikita14K
12.1
0.7 years
Yamato14K
9.9
0.5 years
Asagiri13K
11.3
0.6 years
Hikawa12K
15.4
1.0 years
Minamiaso10K
11.2
0.6 years
Kōsa10K
13.9
0.9 years
Nishiki10K
11.2
0.6 years
Taragi10K
10.8
0.6 years
Misato10K
12.4
0.7 years
Nankan9K
13.1
0.8 years
Nagomi9K
13.3
0.8 years
Kashima9K
16.3
1.1 years
Nishihara8K
12.5
0.7 years
Oguni7K
9.6
0.5 years
Reihoku6K
12.1
0.7 years
Takamori5K
10.4
0.5 years
Sagara5K
10.9
0.6 years
Yamae5K
10.5
0.5 years
Gyokutō4K
14.0
0.9 years
Tsunagi4K
12.1
0.7 years
Yunomae3K
10.4
0.5 years
Minamioguni3K
9.9
0.5 years
Kuma3K
10.5
0.5 years
Mizukami2K
9.7
0.5 years
Ubuyama1K
10.7
0.6 years
Itsuki940
9.1
0.4 years

Showing 48 districts, sorted by population (largest first). PM2.5 values are for 2023. Years lost calculated against WHO guideline of 5 µg/m³.