Organic Phosphate Insecticides-A Survey of Blood Cholinesterase Activity of Exposed Agricultural Workers in Louisiana, 1957

Abstract
Blood specimens from 245 agricultural workers were analyzed for blood cholinesterase during the cotton crop treatment season. No subclinical organic phosphate insecticide poisoning was found though all persons contributing blood samples were exposed in varying degrees to these toxic agents. Only 4 cases of proved organic phosphate poisoning were found among this group during the same season.