Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Generalization of Water Quality Criteria Using Chemical Models: Development of the REDEQL-UMD System of Computer Programs for Aqueous Equilibria. Part 2. Programmers Manual.
Author Harriss, D. K. ; Ingle, S. E. ; Taylor, D. K. ; Magnuson, V. R. ;
CORP Author Minnesota Univ.-Duluth. Dept. of Chemistry.;Environmental Research Lab.-Duluth, MN.
Year Published 1984
Report Number EPA-R-804996; EPA-600/3-84-007B;
Stock Number PB84-135516
Additional Subjects Water quality ; Metals ; Chemical properties ; Mathematical models ; Chemical equilibrium ; Computer programs ; Computer programming ; Complex compounds ; Water pollution ; Thermodynamic properties ; Toxicity ; Water pollution ; User manuals(Computer programs) ; Water pollution effects(Animals)
Library Call Number Additional Info Location Last
NTIS  PB84-135516 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 233p
This research program had the primary objective of developing site-specific water quality criteria for metals through correlating aquatic toxicity with activities of metal species. The project was not intended to carry out experimental studies but to make use of existing literature reports of metal toxicity to generate the correlations. This programmers manual consists of three parts: (A) Definitions and Computational Algorithms for REDEQL-UMD in which the algorithms for all computational processes are described, with examples used when the procedure is complex. (B) Parameter and Global Variables for REDEQL-UMD in which the global variables are defined as to nature and type, and normal ranges are given as well as the names of subroutines in which they are used and the kind of use made of the variables in those subroutines. (C) Flow Diagrams for REDEQL-UMD in which flow diagrams for all subroutines are given in considerable detail as well as a general flow sheet for the program. The manual will find greatest use by those desiring to make major modifications to REDEQL-UMD although it would be useful to a serious user wishing to obtain a more thorough understanding of the set of programs.