Stikstofopname door wol

Previous studies have shown that wool can adsorb contaminants present in the air. In this study it was determined how much ammonia or nitrous oxide could be absorbed by the untreated wool of each of three sheep races. In an airtight glass chamber supplied with a fixed amount of ammonia or nitrous oxide the concentration was monitored after a piece of wool was added. The wool of Schoonebeeker and Blauwe Texelaar sheep absorbed on average 0.11 g kg-1 ammonia, while Drentse heide sheep wool absorbed 0.09 g kg-1. Repeated additions of ammonia were absorbed at the same rate. For all wool types no absorption of nitrous oxide was observed. Research in cattle stables should be carried out to determine the real air purification of ammonia by installed wool material.