Air pollution

Polluted rain that damages trees and plants

A medical condition where some people find it hard to breathe

An example of a fossil fuel. A liquid obtained from petroleum. When it is burned, it causes air pollution

The air around us

Part of your body that helps you to breathe

We do this naturally every few seconds, to get oxygen into our body

NO2, and other particulates are examples of this

There are more than 3 million of them on the roads in Seoul

How we measure how clean or dirty the air in a particular area is

Low grade fuel from petroleum that can cause a lot of pollution

We can describe air that is full of pollutants as this

The part of a car that ejects the dirty waste

Tiny particles of dust, soot, and liquid in the air, which are too small to see

A harmful chemical air pollutant. It gets into our air from the burning of fuel (from cars, trucks, power plants etc)

This happened in the UK in 1952. Many people died because of the air pollution

This helps our bodies fight infections