How does air pollution affect our health?
Particulate matter, or PM10 is the term used to describe the mixture of solid particles and liquid droplets in the air.
PM2.5 is known as fine particulate matter. These are particles with a diameter of less than 2.5 micrometres (µm) or one 400th of a millimetre wide. Fine particulate matter is considered to be the most harmful to human health.
Fine particulates and Nitrogen Dioxide make their way into the human body where they inflame and constrict the movement of blood in fine blood vessels which increases blood pressure.
This can happen within the lungs, heart, and throughout the whole body, raising the risk of stroke or heart attack and heart disease.
Particulate matter is can be either human made or occur naturally, and includes dust, soot, ash and sea-spray. It is emitted during the combustion of solid and liquid fuels, such as power generation, domestic heating, and vehicle engines.