Fine dust consists of a complex mixture of tiny particles with a diameter of less than 10 micrometres harmful to humans. It is linked to lung and cardiovascular problems.
Each CityTree can filter the air usage equivalent of up to 7,000 people per hour.
The CityTrees provide a site-specific solution to the challenge of air pollution and are one of a suite of actions in Cork's Air Quality Strategy. Air pollution is a public health concern and Cork City Council is the first local authority in the country to progress such a strategy.