Download or read book Dredging Research. Volume 2, Number 4 written by and published by . This book was released on 1999 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The loss of volatile contaminants from sediments and dredged materials is an increasingly recognized environmental problem. Disposal and storage operations associated with dredged material placement in confined disposal facilities (CDFs) can result in volatile compound emissions. Research was conducted by ERDC scientists to develop predictive exposure assessment methodologies describing the loss of volatile organic compounds (VOCs) from dredged material management sites. Such methodologies will allow sites to be managed for VOC losses. Initial research efforts focused on the development of a laboratory apparatus and procedures to obtain experimental data on the emission of VOCs from exposed sediment. Data generated from measurements of emissions from laboratory-spiked and field contaminated sediments have been used to validate proposed mathematical models for estimating volatile emissions from contaminated sediments. A controlled field simulation experiment was conducted wit a field contaminated sediment to verify laboratory experimental results. Measured contaminant emissions from the laboratory and field simulation experiments agreed well with model predictions. The model is currently being modified for incorporation into the Automated Dredging and Disposal Alternative Modeling System (ADDAMS) suite of models (available from the ERDC Environmental Laboratory Website.