In cooperation with the U.S. Air Force Aeronautical System Center, Environmental Management Directorate
Data on Occurrence of Selected Trace Metals, Organochlorines, and Semivolatile Organic Compounds in Edible Fish Tissues From Lake Worth, Fort Worth, Texas, 1999
By J.B. Moring
U.S. Geological Survey
Open-File Report 02–016
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Contents
Abstract
Introduction
Sampling and Analytical Approach
Fish Collection
Field Processing of Fish
Data Quality
Sampling Tracking and Disposition
Washing of Equipment
Analyses of Trace Metals and Organic Compounds
References
Figures
| 1. | Map showing Lake Worth, U.S. Air Force Plant 4, and Naval Air Station, Joint Reserve Base, Carswell Field, Fort Worth, Texas |
Tables
| 1. | Information by species on individual fish samples collected in Lake Worth for the analysis of contaminants in edible tissues |
| 2. | Trace metals analyzed in fish fillets from Lake Worth and minimum reporting levels |
| 3. | Concentrations (wet weight) of selected trace metals in edible fish tissues from Lake Worth |
| 4. | Concentrations (dry weight) of selected trace metals in edible fish tissues from Lake Worth |
| 5. | Organochlorine pesticides and polychlorinated biphenyls (PCBs) analyzed in fish fillets from Lake Worth and minimum reporting levels |
| 6. | Concentrations (wet weight) of selected organochlorine pesticides and polychlorinated biphenyls (PCBs) in edible fish tissues from Lake Worth |
| 7. | Semivolatile organic compounds (SVOCs) analyzed in fish fillets from Lake Worth and minimum reporting levels |
Abstract
A public-health assessment conducted for the Texas Department of Health and the Agency for Toxic Substances and Disease Registry concluded that exposure to contaminants through the aquatic food chain is an indeterminate human-health hazard in Lake Worth, Fort Worth, Texas. In 1999, the U.S. Geological Survey, in cooperation with the U.S. Air Force and in collaboration with the Texas Department of Health, collected samples of edible fish tissues from Lake Worth for analysis of selected trace metals, organochlorines, and semivolatile organic compounds to support a human-health risk assessment. Left-side, skin-off fillet samples were collected from 10 individuals each of channel catfish, common carp, freshwater drum (gaspergou), largemouth bass, and white crappie but only from five smallmouth buffalo. The U.S. Geological Survey National Water Quality Laboratory analyzed the samples for 22 trace metals, 40 organochlorine pesticides and polychlorinated biphenyls, and 75 semivolatile organic compounds.
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