PM2.5 stands for particulate matter 2.5 microns or smaller. These particles are 30 times thinner than a human hair and come from car exhaust, power plants, wildfires, and burning fuel. They are small enough to bypass your body's natural defenses and enter your bloodstream.

How does air pollution affect the body?

Air pollution affects virtually every organ in the body. PM2.5 particles enter your lungs, pass into your bloodstream, and travel to your heart, brain, kidneys, liver, and other organs. This causes chronic inflammation, increasing risks of heart disease, stroke, lung cancer, dementia, and many other conditions.

How many people are affected by air pollution?

99% of the global population breathes air that exceeds WHO safety guidelines. Air pollution kills approximately 8 million people every year—more than AIDS, malaria, and tuberculosis combined.

Slovenia's Obalno-kraška Air Pollution Report

Overview

Air Pollution in Obalno-kraška

Obalno-kraška faces significant air pollution challenges. 100% of districts exceed the WHO guideline for clean air. This is putting 43 thousand across 7 districts at risk.

The average PM2.5 over 2023 was 10.3µg/m³. That's 2.1 times the WHO guideline for clean air of 5µg/m³.

This is equivalent of everybody, including children, smoking about 171 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 Obalno-kraška met the WHO guideline of 5 µg/m³, the average person would live 0.52 years longer.

That's 22K years of life stolen from 43 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 7 most polluted districts in Obalno-kraška. These areas face the greatest health burden from air pollution.

1.Izola
0.6 years lost
2.Piran
0.5 years lost
3.Komen
0.5 years lost
4.Koper
0.5 years lost
5.Sežana
0.5 years lost
6.Divaca
0.5 years lost
7.Hrpelje-Kozina
0.5 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

5-10 µg/m³

22%

10K

10-15 µg/m³

78%

34K

15-25 µg/m³

25-35 µg/m³

> 35 µg/m³

Districts

All 7 Districts in Obalno-kraška

Complete air quality data for every district in Obalno-kraška, sorted by population.

District	Population	PM2.5 µg/m³	Years Lost
Koper	11K	10.4	0.5 years
Piran	10K	10.5	0.5 years
Izola	7K	10.8	0.6 years
Divaca	7K	9.7	0.5 years
Sežana	3K	10.1	0.5 years
Hrpelje-Kozina	3K	9.7	0.5 years
Komen	2K	10.4	0.5 years

Showing 7 districts, sorted by population (largest first). PM2.5 values are for 2023. Years lost calculated against WHO guideline of 5 µg/m³.

Breathing in Obalno-kraška is Injurious to Health.