Health hazard evaluation report: HETA-85-309-1739, Oregon Department of Human Resources, Health Division, Gypsy Moth Control Project, Eugene, Oregon.
Cincinnati, OH: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, HETA 85-309-1739, 1986 Oct; :1-25
Evaluation of occupational and general public exposure to Bacillus- thuringiensis (Bt) during application of this microbial agent for control of the gypsy-moth was requested by the Oregon State Department of Human Resources, Health Division (SIC-0851), located in Portland. Bt was applied by helicopter on about 250,000 acres of forest, rural and urban areas in 1985 and 1986. Project operational plans, accident prevention, safety plans, personal protective equipment usage, and work practices were reviewed and evaluated. The program was considered to be comprehensive, well formulated, and properly directed. Personal exposure and area air monitoring for Bt was carried out during application. Air sampling indicated there was a widespread exposure potential. Evaluation criteria for microbiological agents do not exist, and no conclusive evidence has as yet been gathered concerning the effects of Bt exposure on immunosuppressed or hypersensitive individuals. The author recommends that care be taken by those employees handling Bt in solution and that splashing of Bt to the eye be avoided due to possible corneal ulcer development. The dispersing agent Plyac is recommended for use in handling the waste disposal problem. Access to the mixing and application areas should be restricted.
NIOSH-Author; NIOSH-Health-Hazard-Evaluation; NIOSH-Technical-Assistance-Report; HETA-85-309-1739; Region-10; Hazard-Unconfirmed; Insecticide-poisoning; Microbial-test-systems;
Author Keywords: Forestry Services; Bacillus Thuringiensis; Microbiological Insecticide; Gypsy Moth Control
Field Studies; Hazard Evaluation and Technical Assistance
NTIS Accession No.
National Institute for Occupational Safety and Health