Aerosol Sampling. Science and Practice

The study of the behaviour of aerosols has been an acknowledged branch of science in its own right ever since man became aware that ordinary atmospheric air consisted not only of gas molecules but also suspended particles of matter—liquid or solid. Its practical importance was also recognized at an early stage, notably that the presence of airborne particles— although inevitable—is usually undesirable from the point of view not only of human health but also atmospheric visibility, climate and general nuisance (e.g. 'dustiness').