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How Glp Provisions Influence Costs Of Rodenticide Field Evaluations, Richard M. Poche

Vertebrate Pest Conference Proceedings: 15th (1992)

Good Laboratory Practice (GLP) guidelines were implemented by the U.S. Environmental Protection Agency in August 1989. The purpose of the standards are to ensure the integrity of laboratory and field studies which are conducted in support of FIFRA permits and pesticide registrations. Since the advent of GLP requirements, the cost of conducting field trials has increased 40 to 200%, depending upon the type of study. The increased expenses associated with laboratory and field testing, coupled with reregistration expenses, and annual EPA and state registration maintenance fees, have placed a tremendous burden on smaller companies in the U.S.

The Pesticide Reregistration Process: Collections Of Human Health Hazards Data For 3-Chloro-P-Toluidine Hydrochloride (Drc-1339), Ray T. Sterner, Donald J. Elias, Daniel R. Cervin

Vertebrate Pest Conference Proceedings: 15th (1992)

The 1988 Amendments to the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) accelerated the reregistration schedule for pesticide products registered with the Environmental Protection Agency (EPA) prior to 1984. The compound 3-chloro-p-toluidine hydrochloride (DRC-1339), an avicide registered to control 14 pest bird species, was included on Pesticide List B published by EPA. For the reregistration of DRC-1339,44 studies were required — 22 product chemistry, 7 wildlife/aquatic hazards, 8 human/domestic animal hazards, 5 environmental fate, and 2 residue chemistry studies. In 5 acute human-health-hazards studies, DRC-1339 was found to: (1) have an oral LD₅₀ of 330 (272-401) mg/kg in rats, …

Reconnaissance Survey Of Nitrate Concentrations In Ground Water In Howard And Pike Counties, Arkansas, Travis Thornton, Kenneth F. Steele

Arkansas Water Resources Center Technical Reports

In recent years, the rapid growth of poultry and hog production in Arkansas has caused concern regarding nitrate contamination of the ground water. In the study area of Pike and Howard Counties, the number of hogs has increased from 3,300 hogs in 1970 to 75,000 hogs in 1990. Poultr¥ production for the area has increased from 38,933,000 per year 1n 1970 to 62,774,000 per year in 1990. As animal production increases, so does the amount of animal waste that must be disposed. Hog production is of particular concern. Typical hog operations store concentrated animal waste in lagoons prior to land …

The Denver Wildlife Research Center: An Update, Richard D. Curnow

Great Plains Wildlife Damage Control Workshop Proceedings

The Denver Wildlife Research Center (DWRC) has progressed as part of the U.S. Department of Agriculture's Animal and Plant Health Inspection Service (APHIS) in its capability to support the APHIS Animal Damage Control (ADC) program and provide the agency and the public with expanded knowledge and new or alternative tools to reduce wildlife conflicts with agriculture and other human endeavors. As a result of this increased capability, the DWRC conducts research and provides data that conform to the Environmental Protection Agency's (EPA) Good Laboratory Practice Standards for pesticide registration and reregistration and to the guidelines of the Animal Welfare Act …

The Probe, Issue 107 - January/February 1991

The Probe: Newsletter of the National Animal Damage Control Association

Contents:
Registration of Alpha-Chloralose
Rice Seed Repellents
Perimeter Netting of Catfish Ponds
Frightening Devices for Coyotes
DRC-1339 Registration
DRC-1339 For Raven Control
Zinc Phosphide Registration
Coyote Attractant Research
Gas Cartridges
Coyote Bait Acceptance
Trapping is a Profession, Not a Sport
Bovine TB in Elk
NADCA Secretary Objects to Predator Article
Heart Transplants for Rats
Gallup Poll on Public Opinion of Animal Rightists Reaffirmed
Personnel Changes
Prevention and Control Tips: Tree Squirrels
Upcoming Meetings
President’s Corner
NADCA Official Sponsor of Fifth Eastern Wildlife Damage Control Conference
Information on Snaring Needed by Maine Reader

The Kinetic Study Of Degradation Of The Azo Dyes By Photolytic Ozonation And Photolytic Hydorgen Peroxide Oxidation, Hung-Yee Shu

Theses

The experiments which study the decomposition of azo dyes such as acid red 1 and acid yellow 23 by using ozonation, photolytic ozonation and photolytic hydrogen peroxide oxidation have been studied in laboratory sized reactor and pilot scale reactor to determine the reaction rate constants.

The rate constants and mass transfer coefficients were obtained by a series of experiments of varying complexity. A reaction kinetic model which describes the contemplated experiments was developed and exercised using the Rosenbrock Hillclimb Optimization Algorithm with the Forth-Order Runge-Kutta method. The effects between different hydrogen peroxide dosages and pH level were also analyzed.

In …

Politics And Economics Of Maintaining Pesticide Registrations, Kathleen A. Fagerstone, Roger W. Bullard, Craig A. Ramey

Vertebrate Pest Conference Proceedings: 14th (1990)

The Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) was amended in 1988 to require the reregistration of all pesticides registered before 1984 within 9 years. The FIFRA 88 required that all pesticide active ingredients must meet current registration standards, suspended the previous fee structure, and imposed a one-time registration fee and annual maintenance fees. New data generated because of FIFRA 88 must conform to EPA's Good Laboratory Practice Standards and animal studies must follow guidelines of the Animal Welfare Act. FIFRA 88 has significantly increased data requirements, data costs, and other pesticide registration and reregistration costs for most pesticides. The …

Interspecific Correlations Of Harvest And Price For Arkansas Furbearers: A Cautionary Note, James H. Peck, Gary A. Heidt, Anita J. Giggleman

Journal of the Arkansas Academy of Science

No abstract provided.

Reconnaissance Of Sediment-Phosphorus Relationships In Some Utah Reservoirs, Jay J. Messer, Jean M. Ihnat

Reports

Introduction: Phosphorus inputs to lakes and reservoirs from tributary streams and non-point sources are well-known contributors to nuisance algal growths that degrade water quality for potable and recreational uses in lakes and reservoirs. However, phosphours inputs to the euphotic zone may also occur from within the lake itself, as a result of releases from both oxic and anoxid sediments. Such releases may originate from phosphorus inputs to a lake or reservoir during high runoff periods in the previous winder or spring, or they may represent phosphorus trapped in the sediment many years earlier, when phosphorus contributions from natural or anthropogenic …

A Survey Of The Water Quality And Fishes Of Rocky Branch Nature Preserve, Clark County, Illinois, Larry J. Decker

Masters Theses

No abstract provided.

Micronutrients And Biological Patterns In Lake Mead, Hasan K. Qashu, Lorne G. Everett, J. S. Carlson, Bureau Of Reclamation

Publications (WR)

Progressive increases in concentration of dissolved solids in the Colorado River water from Lake Powell to Imperial Dam seem to alter plankton dynamics and biological productivity of the river. Also, changes in biological productivity and micronutrients concentrations occur within the same reservoir. Development of a digital simulation model to predict micronutrients concentrations and biological productivity is necessary for diagnosing changes in plankton population and effluent-carrying capacity of the system. The objectives of the study are: (1) to determine trace metal balance at different locations in Lake Mead, (2) to measure biological productivity and conduct plankton population counts at each sampling …

Water Chemistry Survey Of Boulder Basin, Lake Mead, P. R. Tramutt, Bureau Of Reclamation

Publications (WR)

The survey results indicate that the impoundment of water behind Hoover Dam has not adversely affected the dissolved oxygen (DO) content and that water quality and DO content were uniform regardless of depth. The study made in April-May 1964 will provide water quality data of Lake Mead prior to releases from Lake Powell as a basis for evaluating Lake Powell's effect on water quality and limnology of Lake Mead. The performance of a DO analyzer was tested and found unsatisfactory at depths below 150 ft. Parameters tested by standard chemical analyses of water samples in the Denver Laboratory and by …