Accession Number:

ADA634638

Title:

Xenobiotic Organic Compound Cycling in Coastal Waters

Descriptive Note:

Corporate Author:

MASSACHUSETTS INST OF TECH CAMBRIDGE

Report Date:

1997-09-30

Pagination or Media Count:

5.0

Abstract:

LONG TERM GOALS. Our long term goal is to develop the basis to predict the fates of xenobiotic organic chemicals in harbors and coastal marine environments. To this end, we seek to build a flexible modeling approach that is capable of yielding estimates of chemical concentrations in space and time, tunable for various compounds and coastal environments of interest. Such predictions are necessary to allow us to manage wisely our coastal discharges and to evaluate the need to cleanup existing conditions. OBJECTIVES. In order to assess organic chemicals in coastal marine environments, we must 1 be able to characterize the processes controlling their chemical speciation. and 2 be able to evaluate the rates of processes affecting particles in coastal seawater. The first objective requires us to examine the distribution of contaminants like PCBs and PAHs among dissolved, colloidal, and settling particle phases. Moreover, we seek to find properties of the sorbates, sorbents, and solutions from which these phase distributions can be estimated a priori. The second objective requires us to assess quantitatively the fluxes of solids from the water column to the sediment beds below.

Subject Categories:

  • Biological Oceanography
  • Physical and Dynamic Oceanography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE