Breathing in Yamanashi is Injurious to Health.

Air pollution threatens the health of 795 thousand people across 28 districts in Yamanashi. The average PM2.5 level is 8.9 µg/m³—1.8× higher than the WHO guideline.

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Brought to you by Amrit Sharma

Overview

Air Pollution in Yamanashi

Yamanashi faces significant air pollution challenges. 100% of districts exceed the WHO guideline for clean air. This is putting 795 thousand across 28 districts at risk.

The average PM2.5 over 2023 was 8.9µg/m³. That's 1.8 times the WHO guideline for clean air of 5µg/m³.

This is equivalent of everybody, including children, smoking about 148 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 Yamanashi met the WHO guideline of 5 µg/m³, the average person would live 0.38 years longer.

That's 302K years of life stolen from 795 thousand 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 Yamanashi. These areas face the greatest health burden from air pollution.

  • 1.Shōwa
    0.5 years lost
  • 2.Kōfu
    0.5 years lost
  • 3.Kai
    0.5 years lost
  • 4.Minami-Alps
    0.5 years lost
  • 5.Chūō
    0.4 years lost
  • 6.Fuefuki
    0.4 years lost
  • 7.Nirasaki
    0.4 years lost
  • 8.Masuho
    0.4 years lost
  • 9.Ichikawamisato
    0.3 years lost
  • 10.Yamanashi
    0.3 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
65.3%
519K
10-15 µg/m³
34.7%
276K
15-25 µg/m³
0%
0
25-35 µg/m³
0%
0
> 35 µg/m³
0%
0
Districts

All 28 Districts in Yamanashi

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

DistrictPopulationPM2.5 µg/m³Years Lost
Kōfu182K
10.3
0.5 years
Kai80K
10.3
0.5 years
Minami-Alps73K
9.7
0.5 years
Fuefuki61K
9.1
0.4 years
Fujiyoshida46K
6.8
0.2 years
Hokuto43K
8.0
0.3 years
Chūō36K
9.6
0.4 years
Yamanashi34K
8.5
0.3 years
Nirasaki33K
8.9
0.4 years
Kōshū28K
8.2
0.3 years
Tsuru27K
6.3
0.1 years
Fujikawaguchiko27K
7.0
0.2 years
Ōtsuki24K
6.3
0.1 years
Uenohara23K
6.7
0.2 years
Shōwa13K
10.4
0.5 years
Ichikawamisato11K
8.5
0.3 years
Masuho10K
8.6
0.4 years
Minobu10K
7.3
0.2 years
Oshino9K
6.8
0.2 years
Nanbu7K
7.6
0.3 years
Yamanakako5K
7.0
0.2 years
Nishikatsura5K
6.4
0.1 years
Kajikazawa2K
7.9
0.3 years
Narusawa2K
6.9
0.2 years
Dōshi2K
6.2
0.1 years
Hayakawa1K
6.9
0.2 years
Kosuge686
6.0
0.1 years
Tabayama545
6.2
0.1 years

Showing 28 districts, sorted by population (largest first). PM2.5 values are for 2023. Years lost calculated against WHO guideline of 5 µg/m³.