Reentry safe worker

The F.W.G.P.M. Task Force addressed itself mainly to the problem of organophosphates, and its terms of reference were to identify areas in which information on occupational exposure to workers was unavailable, to make recommendations for the development of research protocols to determine safe reentry levels for the protection of agricultural and forest workers, and to suggest interim reentry standards based on existing knowledge. The report was controversial but drew attention to the lack of a substantial data base and to the urgent need for surveillance of pesticide-related morbidity and mortality and for research to identify factors influencing safe worker reentry levels. 

A study was carried out to determine a safe worker reentry period for phosalone on citrus (5). Fourteen male agricutural workers (volunteers), ranging in age from 18 to 72 years, were given physical examinations, including a blood ChE test, prior to three days of work in the citrus grove 14 or 21 days after it was sprayed with phosalone at six pounds A.I. per acre. Four men acted as controls. 

The label will specify the restricted entry interval (REI) for the product. The restricted entry statement inclndes the amount of time that must elapse after a pesticide has been applied and before it is safe to enter the treated area withont wearing fnll protective clothing and equipment. If this interval applies to only certain nses or sites, the label will say so. The label may also list posting reqnirements associated with the reentry interval. Refer back to Section II, part G, for information on restricted entry intervals (REIs) in connection with the Worker Protection Act. 

Knaak JB, Iwata Y, Maddy KT (1989) The worker hazard posed by reentry into pesticide-treated foliage development of safe reentry times, with emphasis on chlorthiophos and carbosulfan, Ch 24. In Paustenbach D (ed) The risk assessment of environmental hazards a textbook of case studies. Wiley, New York, pp 797-842... 

Scott RC, Ramsay JD (1987) Comparison of the in vivo and in vitro percutaneous absorption of a lipophilic molecule (cypermethrin, a pyrethroid insecticide). J Invest Dermatol 89 142-146 Serat WF (1973) Calculation of a safe reentry time into an rachaid treated with a pesticide chemical which produces a measiuable physiological response. Arch Environ Contam Toxicol 1 170-181 Serat WF, Bailey JB (1974) Estimating the relative toxicologic potential of each pesticide in mixture of residues on foliage. Bull Environ Contam Toxicol 12 682-686 Serat WF, Mengle DC, Anderson HP, Kahn E (1975) On the estimation of worker entry intervals into pesticide treated fields with and without the exposure of human subjects. Bull Environ Contam Toxicol 13 506-512... 

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