Atmospheric Levels of Propoxur Aboard Submarines After Residual Spraying1

Abstract
Air samples were taken at 2, 4, 8, 12, and 24 h and 8 day intervals aboard a diesel submarine following the enresidual application of 1.1% propoxur emulsion. The propoxur became airborne but never reached atmospheric levels above 0.009 µg/liter of air, while the solvents methylene chloride and trichloroethylene never exceeded 25 ppm. The use of propoxur emulsion for cockroach control aboard submarines could be accomplished without endangering the crew or closing the boat down for an extended period of time.

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