Comparison of Transfer of Surface Chlorpyrifos Residues from Carpet by ThreeDislodgeable Residue Methods

摘要

Dermal contact with residues of pesticides applied to carpets and subsequent skinabsorption or ingestion through hand-to-mouth activity are routes of human exposure which need better evaluation, especially for young children. The Dow drag sled, the California cloth roller, and the Southwest Research Institute (SwRI) polyurethane foam roller (SwRI invention disclosure no. 2061, patent pending) are dislodgeable residue sampling methods which have recently been developed to estimate the transfer of a chemical from a contaminated surface to the skin. The paper reports three experiments conducted to determine which of the three methods deployed as currently used by the developer provides the more reproducible and facile transfer of chlorpyrifos residues from carpet.