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RECORD NUMBER: 29 OF 40

OLS Field Name OLS Field Data
Main Title Sensitivity of vertebrate embryos to boron compounds : April 1977 : final report /
Author Birge, Wesley J. ; Black., J. A.
Other Authors
Author Title of a Work
Black, Jeffrey A.
CORP Author Thomas Hunt Morgan School of Biological Sciences, Lexington, Ky.;Environmental Protection Agency, Washington, D.C. Office of Toxic Substances.; United States. Environmental Protection Agency. Office of Toxic Substances.
Publisher Office of Toxic Substances, Environmental Protection Agency,
Year Published 1977
Report Number EPA-560/1-76-008; EPA-68-01-3222; PB267085
Stock Number PB-267 085
OCLC Number 44724273
Subjects Boron. ; Embryology--Vertebrates.
Additional Subjects Toxicity ; Boron ; Embryos ; Aquatic animals ; Larvae ; Toxicology ; Bioassay ; Vertebrates ; Concentration(Composition) ; Mortality ; Trout ; Catfishes ; Frogs ; Toads ; Amphibia ; Chickens ; Comparisons ; Experimental data ; Water pollution effects(Animals) ; Teratogenesis ; Goldfish ; Threshold limit values ; Baron ; Embryology--Vertebrates
Internet Access
Description Access URL
https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=20012HI6.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EJBD ARCHIVE EPA 560-1-76-008 Headquarters Library/Washington,DC 07/16/2019
EJED  EPA-560/1-76-008 c.1-2 OCSPP Chemical Library/Washington,DC 06/04/2004
ESAD  EPA 560-1-76-008 Region 10 Library/Seattle,WA 08/11/2000
NTIS  PB-267 085 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation 66 pages : illustrations ; 28 cm.
Abstract
Developmental stages of rainbow trout, channel catfish, goldfish, leopard frog, and Fowler's toad were treated in a continuous flow system with boric acid and borax concentrations ranging from 0.001-300 ppm boron. Exposure was initiated subsequent to fertilization and maintained through 4 days posthatching, using water with hardness levels of 50 and 200 ppm CaCO3. Expressed in ppm boron at 4 days posthatching, LC1 values for trout, catfish, and goldfish were 0.1, 0.5, and 0.6 for boric acid in soft water, 0.001, 0.2, and 0.2 for boric acid in hard water, 0.07, 5.5, and 1.4 for borax in soft water, and 0.07, 1.7, and 0.9 for borax in hard water. LC50 values in ppm for trout, catfish, and goldfish were 100, 155, and 46 for boric acid in soft water, 79, 22, and 75 for boric acid in hard water, 27, 155, and 65 for borax in soft water, and 54, 71, and 59 for borax in hard water. The LC50 values for amphibian embryos and larvae ranged from 47 for borax in soft water to 145 for boric acid in soft water. By comparison, boron LC50 values for chick embryos, treated by yolk injection, were 1.0 and 0.5 ppm for boric acid and borax, respectively.
Notes
Contract no. 68-01-3222. "PB-267-085." "April 1977." Includes bibliographical references (pages 64-66).