The impact of human activities on sediments of San Francisco Bay, California: an overview

Marine Chemistry
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Abstract

This note introduces a set of eight papers devoted to a detailed study of two sediment cores from San Francisco Bay with an overview of the region and a chronology of human activities. Data used in this study to constrain the range of sediment ages at different depths include Full-size image (<1 K), and Full-size image (<1 K) concentrations in the sediment and the Full-size image (<1 K) age of shell fragments. In order of first detectable appearance in the record, the indicators of contamination that were analyzed include PAHs>Hg>Ag, Cu, Pb, Zn>DDT, PCB>foraminiferal Cd/Ca. This study also documents a large memory effect for estuarine contamination caused by sediment mixing and resuspension. Once an estuary such as San Francisco Bay has been contaminated, decades must pass before contaminant levels in surface sediment will return to background levels, even if external contaminant inputs have been entirely eliminated.

Study Area

Publication type Article
Publication Subtype Journal Article
Title The impact of human activities on sediments of San Francisco Bay, California: an overview
Series title Marine Chemistry
DOI 10.1016/S0304-4203(98)00080-2
Volume 64
Issue 1-2
Year Published 1999
Language English
Publisher Elsevier
Contributing office(s) San Francisco Bay-Delta, Pacific Regional Director's Office
Description 6 p.
First page 1
Last page 6
Country United States
State California
Other Geospatial San Francisco Bay
Online Only (Y/N) N
Additional Online Files (Y/N) N
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