Why do biosolids smell and are the odors harmful?
Biosolids produced by different municipalities have their own distinctive odors due to the types of processing and handling practices. As with many organic materials, biosolids odor is caused by compounds containing sulfur and nitrogen components, which are produced when proteins in biosolids break down. The biosolids from one facility may have a stronger odor than another. While the odor may be offensive to some people some of the time, the odors are not harmful.
