Characterizing Human Contact with Sediment

Objective/Intended Use

The purpose of this project is to conduct field studies to measure residues on skin and determine the frequency and duration of the behaviors associated with sediment contact.

Abstract

People contact sediment during a variety of activities such as fishing, wading and boating. A number of default assumptions are used today to characterize dermal contact with sediments in terms of magnitude, frequency and duration. The accuracy of these default values are widely questioned and the uncertainties/limitations are not well understood. The central reason for this problem is the lack of appropriate data which can be used to support these factors. The purpose of this project is to conduct field studies to measure residues on skin and determine the frequency and duration of the behaviors associated with sediment contact. Project completed, two publications: Shoaf, M.B., et al; Child Dermal Sediment Loads Following PLay in Tidal Flat; J Exp Ana and Env Epidemiology, 2005. Shoaf, M.B., et al; Dermal Sediment Loads on Adults Following Clam DIgging in Tidal Flat, 2005.

Project Status

This project began in November 2002. Arrangements have been made to conduct two field studies. One will be in Gulf Breeze, FL and focus on children playing along the shoreline. The second will be conducted in Naragansett, RI and focus on adults collecting shellfish.

Project Start Date

11/01/2002

Project Completion Date (Actual/Projected)

01/01/2005