Total Deposition

The total deposition collector is used for collecting airborne materials that are either deposited onto the ground or washed down by rain water. It consists of a 20-litre plastic bottle and a plastic funnel. While wet deposition is collected together with rainwater, dry deposition is collected by rinsing the inner surface of the funnel with distilled water. Measurements of the radioactivity of these samples are carried out at the Radiation Laboratory at King's Park.