Fungal spores constitute a significant portion of bio aerosols commonly detected in ambient air and can potentially affects human health, vegetation, and climate. Understanding the release of fungal spores is important for the prediction of their transport (by dispersion) and subsequent exposure to different receptors. The presence of large municipal waste dumpsites in many Indian cities can act as a rich source to sustain growth and possibly release fungal spores. In this study, the primary focus is on the measurement of release rate of fungal spores from solid food wastes and the understanding of the mechanism of spore release. To do this, we have isolated and identified the naturally grown food borne fungi and measured the spore emission flux from different food substrates under quiescent ambient air conditions. Experiments are underway to measure composite spore emission flux from different food substrates under outdoor ambient air conditions. The broad objectives of this study is to be able to understand and model the passive release of fungal spores from municipal solid waste.