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Bioaerosols

There are no scientifically documented cases of illnesses caused by aerosols from biosolids.




Testing for odors at land application site.

Because you can usually smell biosolids being applied on a farm, some people have wondered whether disease-causing organisms left over from the wastewater treatment process could be spread through the air to humans or animals. There have even been unsubstantiated allegations of illness after land application.

However, there are no scientifically documented cases of illnesses caused by biosolids. There have been a number of scientific studies that demonstrate the difficulty of transmitting biosolids-related diseases through the air. Current federal and state regulations, combined with the implementation of land application best management practices, make it even more unlikely that diseases can be transmitted from biosolids.