Guidance For Controlling Potential Risks To Workers Exposed to Class B Biosolids

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Summary Statement

Link to a NIOSH report on the health hazards and methods to prevent diseases associated with working in sewage or wastewater treatment plants.
July 2002

Construction and maintenance workers in sewage or wastewater treatment plants may be exposed to biosolids that contain bacteria, viruses, protozoa, or parasitic worms (helminths), all of which can cause disease. A report from the National Institute for Occupational Safety and Health (CDC) explains the hazards and suggests ways to prevent disease, including hygiene and work practices, PPE, and immunization for tetanus-dphtheria.