USGS Fact Sheet 2004-3077

In cooperation with the U.S. Air Force

Lake Worth Bottom Sediments—A Chronicle of Water-Quality Changes in Western Fort Worth, Texas, 1914–2001

By Christopher L. Braun and Glenn R. Harwell

U.S. Geological Survey
Fact Sheet 2004–3077

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pdf (6.38 MB)

Contents

Fish-Consumption Advisory Issued Because of Elevated PCBs

Collection of Sediment Cores

Age-Dating Methods

Historical Trends in PCBs

Study Continued

References

Figures

1.	Map showing location of study area and approximate sampling locations in Lake Worth, Fort Worth, Texas, 2000–2001
2.	Photographs showing U.S. Geological Survey personnel (a) describing a gravity core, (b) placing gravity core in core extrusion stand, and (c) slicing a subsample from a gravity core
3.	Graphs showing cesium-137 profiles in gravity-core samples from Lake Worth, Fort Worth, Texas, 2000–2001
4.	Map showing spatial and temporal distribution of total polychlorinated biphenyls (PCBs) in sediments from Lake Worth, Fort Worth, Texas, 2000–2001
5.	Map showing approximate sampling locations for second round of sampling in and near Woods Inlet of Lake Worth, Fort Worth, Texas, 2000–2001

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U.S. Department of the Interior, U.S. Geological Survey Persistent URL: http://pubsdata.usgs.gov/pubs/fs/2004/3077/ Page Contact Information: USGS Publishing Network Last modified: Tuesday, November 29 2016, 06:01:20 PM