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Texas Water Science Center

Particle-Associated Contaminants in Street Dust, Parking Lot Dust, Soil, Lake-Bottom Sediment, and Suspended and Streambed Sediment, Lake Como and Fosdic Lake Watersheds, Fort Worth, Texas, 2004

By Jennifer T. Wilson, Peter C. Van Metre, Charles J. Werth, and Yanning Yang 

U.S. Geological Survey
Data Series 211—ONLINE ONLY

In cooperation with the City of Fort Worth


Abstract

A previous study by the U.S. Geological Survey of impaired water bodies in Fort Worth, Texas, reported elevated but variable concentrations of particle-associated contaminants (PACs) comprising chlorinated hydrocarbons, polycyclic aromatic hydrocarbons, and trace elements in suspended and bed sediment of lakes and streams affected by urban land use. The U.S. Geological Survey, in cooperation with the City of Fort Worth, collected additional samples during October 2004 to investigate sources of PACs in the watersheds of two impaired lakes: Lake Como and Fosdic Lake. Source materials and aquatic sediment were sampled and analyzed for PACs. Source materials sampled consisted of street dust and soil from areas with residential and commercial land use and parking lot dust from sealed and unsealed parking lots. Aquatic sediment sampled consisted of bottom-sediment cores from the two lakes and suspended and streambed sediment from the influent stream of each lake. Samples were analyzed for chlorinated hydrocarbons (organochlorine pesticides and polychlorinated biphenyls), polycyclic aromatic hydrocarbons, major and trace elements, organic carbon, grain size, and radionuclides.

Table of Contents

Abstract

Introduction

Approach

Study Design and Sampling

Analytical

Organic Compounds

Major and Trace Elements

Organic Carbon

Radionuclides

Particle-Associated Contaminants in Street Dust, Parking Lot Dust, Soil, Lake-Bottom Sediment, and Suspended and Streambed Sediment

References


Figures

1–2.   Maps showing:
  1.   Sites where samples of street dust, parking lot dust, soil, lake-bottom sediment, and suspended and streambed sediment were collected in Lake Como watershed, October 2004
  2.   Sites where samples of street dust, parking lot dust, soil, lake-bottom sediment, and suspended and streambed sediment were collected in Fosdic Lake watershed, October 2004

Tables

1.   Selected chlorinated hydrocarbon compound concentrations in street dust, parking lot dust, soil, lake-bottom sediment, and suspended and streambed sediment samples collected in Lake Como and Fosdic Lake watersheds, October 2004
2.   Polycyclic aromatic hydrocarbon (PAH) concentrations in street dust, parking lot dust, soil, lake-bottom sediment, and suspended and streambed sediment samples collected in Lake Como and Fosdic Lake watersheds, October 2004
3.   Major and trace element concentrations street dust, parking lot dust, soil, lake-bottom sediment, and suspended and streambed sediment samples collected in Lake Como and Fosdic Lake watersheds, October 2004
4.   Organic carbon concentration in street dust, parking lot dust, soil, and lake-bottom sediment samples collected in Lake Como and Fosdic Lake watersheds, October 2004
5.   Grain size distribution in lake-bottom and streambed sediment samples collected in Lake Como and Fosdic Lake watersheds, October 2004
6.   Radionuclide activities in lake-bottom sediment samples collected in Lake Como and Fosdic Lake watersheds, October 2004

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