Bioaerosols are among the most complex components in the atmosphere. Bioaerosols are relevant as important pathogens in crops and on trees, as aeroallergens in relation to human health and as catalysts for physical processes in relation to climate such as cloud formation processes. The last five to ten years a range of new techniques have become available that enable a number of scientific breakthroughs in the general understanding of bioaerosols and how they interact with the environment. This COST action will establish an interdisciplinary network of experts currently involved in the detection of bioaerosols using both existing methods as well as upcoming technologies such as real or near real-time technologies from atmospheric chemistry and physics or eDNA methods used in molecular biology. A main objective is to critically address the barriers that limits the penetration of new methods in detection of bioaerosols.