Industrial Hygiene Report Preliminary and Comprehensive Survey of Trico Farm Services, Incorporated, Ground Applicator of Paraquat, Oxford, Nebraska

摘要

Worker exposures to paraquat (1910425) were assessed at Trico Farm Services, Incorporated (SIC-2869) in Oxford, Nebraska on July 13 and 14, 1981. The company was selected as being representative of a large ground applicator for paraquat for weed control in no tillage farming practices in the central U.S. grain belt area. The company employed 16 personnel. Personal air sampling during spray application operations was conducted. The mean exposure for an 8 hour day was approximately 10 micrograms of paraquat per cubic meter. The authors conclude that the measurable exposures meet the current occupational guidelines even under 16 hour work day conditions. Eight hour time weighted averages are well below the threshold limit value. They recommend the use of protective clothing.