Breathing in Chiba is Injurious to Health.

Air pollution threatens the health of 5.7 million people across 56 districts in Chiba. The average PM2.5 level is 8.7 µg/m³—1.7× higher than the WHO guideline.

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Brought to you by Amrit Sharma

Overview

Air Pollution in Chiba

Chiba faces significant air pollution challenges. 98% of districts exceed the WHO guideline for clean air. This is putting 5.7 million across 56 districts at risk.

The average PM2.5 over 2023 was 8.7µg/m³. That's 1.7 times the WHO guideline for clean air of 5µg/m³.

This is equivalent of everybody, including children, smoking about 144 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 Chiba met the WHO guideline of 5 µg/m³, the average person would live 0.36 years longer.

That's 2.1M years of life stolen from 5.7 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 Chiba. These areas face the greatest health burden from air pollution.

  • 1.Urayasu
    0.6 years lost
  • 2.Matsudo
    0.6 years lost
  • 3.Ichikawa
    0.6 years lost
  • 4.Nagareyama
    0.5 years lost
  • 5.Noda
    0.5 years lost
  • 6.Kashiwa
    0.5 years lost
  • 7.Funabashi
    0.5 years lost
  • 8.Kamagaya
    0.5 years lost
  • 9.Narashino
    0.4 years lost
  • 10.Abiko
    0.4 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
0.3%
14K
5-10 µg/m³
72%
4.1M
10-15 µg/m³
27.8%
1.6M
15-25 µg/m³
0%
0
25-35 µg/m³
0%
0
> 35 µg/m³
0%
0
Districts

All 56 Districts in Chiba

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

DistrictPopulationPM2.5 µg/m³Years Lost
Chiba947K
8.3
0.3 years
Funabashi571K
9.9
0.5 years
Matsudo514K
10.8
0.6 years
Kashiwa400K
10.1
0.5 years
Ichikawa271K
10.7
0.6 years
Nagareyama251K
10.6
0.5 years
Ichihara236K
7.2
0.2 years
Yachiyo217K
9.0
0.4 years
Narashino189K
9.5
0.4 years
Sakura163K
7.8
0.3 years
Noda157K
10.3
0.5 years
Narita137K
6.7
0.2 years
Kisarazu135K
6.8
0.2 years
Abiko132K
9.3
0.4 years
Kamagaya113K
9.8
0.5 years
Mobara86K
6.2
0.1 years
Yotsukaido81K
8.0
0.3 years
Kimitsu80K
5.9
0.1 years
Shiroi77K
9.2
0.4 years
Katori65K
6.7
0.2 years
Sodegaura62K
7.1
0.2 years
Asahi62K
6.5
0.1 years
Yachimata61K
6.5
0.1 years
Tōgane59K
6.5
0.2 years
Inzai52K
8.3
0.3 years
Tomisato47K
6.4
0.1 years
Sanmu46K
6.3
0.1 years
Chōshi46K
5.4
0.0 years
Ōamishirasato43K
6.5
0.1 years
Tateyama41K
5.8
0.1 years
Futtsu39K
5.8
0.1 years
Isumi33K
5.4
0.0 years
Minamibōsō33K
5.5
0.0 years
Sōsa32K
6.3
0.1 years
Kamogawa29K
5.2
0.0 years
Sakae22K
7.7
0.3 years
Yokoshibahikari22K
6.3
0.1 years
Shisui18K
6.7
0.2 years
Inba15K
7.4
0.2 years
Motono15K
7.7
0.3 years
Katsuura14K
4.9
0.0 years
Tako14K
6.2
0.1 years
Kujūkuri13K
6.5
0.1 years
Chōsei13K
6.3
0.1 years
Tōnoshō13K
6.5
0.1 years
Ichinomiya11K
6.0
0.1 years
Ōtaki9K
5.0
0.0 years
Shirako8K
6.4
0.1 years
Chōnan7K
5.6
0.1 years
Kōzaki7K
7.0
0.2 years
Kyonan7K
5.4
0.0 years
Mutsuzawa7K
5.8
0.1 years
Onjuku6K
5.1
0.0 years
Nagara6K
5.9
0.1 years
Shibayama6K
6.3
0.1 years
Urayasu331
10.8
0.6 years

Showing 56 districts, sorted by population (largest first). PM2.5 values are for 2023. Years lost calculated against WHO guideline of 5 µg/m³.