Record Display for the EPA National Library Catalog


Main Title Industrial wastes : effects on Trinity River ecology, Fort Worth, Texas /
Author Murphy, Clifford Elyman
Other Authors
Author Title of a Work
Newland, L. W.
Forsyth, J. W.
Keith, D. E.
Murphy, Clifford Elyman,
Publisher [U.S. Environmental Protection Agency] : For sale by the Supt. of Docs., U.S. Govt. Print. Off.,
Year Published 1972
Report Number W7212109; EPA/18050-DBB-12-71
OCLC Number 00539381
Subjects Freshwater ecology--Texas--Trinity River--Pollution ; Factory and trade waste--Texas--Trinity River ; Freshwater ecology--Pollution--Texas--Trinity River ; Tarrant County (Tex)
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 18050-DBB-12-71 Headquarters Library/Washington,DC 02/11/2014
EJBD  EPA 18050-DBB-12-71 Headquarters Library/Washington,DC 03/14/2014
ELBD RPS EPA 18050-DBB-12-71 repository copy AWBERC Library/Cincinnati,OH 10/17/2014
EMAM  TD224.T4I52 Region 6 Library/Dallas,TX 10/06/2021
Collation ix, 163 pages : illustrations, maps, charts, form ; 28 cm
"EPA/18050-DBB-12/71." "December 1971." Includes bibliographical references (pages 81-97). Issued December 1971.
Contents Notes
Toxicity of industrial effluents discharged directly into or in close proximity to the Trinity River (Tarrant County, Texas) was investigated through a 27-month period. The investigation was concerned with four aspects--bioassay, growth and development, chemistry, and benthos. Three industries contributed toxic materials which had a significant influence on the surrounding aquatic community. Toxicity ranges were established for the respective effluents using mature minnows, fry and spawn. Effluents from a railroad equipment cleaning area, a plant producing cracking catalysts used in processing combustion engine fuels, and a sewage treatment plant influenced the water quality of the river downstream from the outfalls. The ranges of nitrates, phosphates, biochemical oxygen demand and specific conductance for the river were increased by the effluents.