WISH has issued “Information Note 23”, providing guidance on the control of bioaerosols which are a complex mixture of bacteria, fungal spores, and other fragments of biological origin that are suspended in the air. When organic waste, such as domestic, garden and food waste is stored for any period, the naturally occurring microorganisms can multiply rapidly, especially in warm and moist environments. There is risk of bioaerosol generation during the handling and processing of organic waste, particularly during energetic activities. For further details, please refer to the Information Note 23 here.