[Characteristics of Odor Emissions from Fresh Compost During Storage and Application].

The direct application of fresh compost is frequent in practice and might cause odor pollution. The present study investigated the characteristics of odor emissions and aimed to estimate the environmental effect of odor over the course of storage and application. An odors emission potential test lasting 21 days was conducted using primarily fermented fruit and vegetable waste compost. The results showed that the fresh compost primarily emitted ammonia, as well as sulfur compounds, benzenes, and terpenes throughout the experiment. Alcohol and aldehyde emissions decreased over time, whereas ketone emissions were consistently low. By simulating two scenarios-one in an enclosed space and one in open air-the quantity of fresh compost could be applied or stored, and the protective distance was calculated from the point of odor potential.