8273

• UCREFRP Catalog Number: 8273
• Author: U.S. Bureau of Reclamation, U.S. Fish and Wildlife Service, U.S. Geological Survey and U.S. Bureau of Indian Affairs.
• Title: Guidelines for Interpretation of the Biological Effects of Selected Constituents in Biota, Water, and Sediment.
• USFW Year: 1998.
• USFW - Doc Type: \
• Copyright Material: NO

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National Irrigation Water Quality Program Guidelines

Table 7.-Summary of literature for boron ecotoxicology-Continued

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Boron
Species compound Concentration Test conditions Effect Reference
Fish-Continued
Channel Borax and 155 mglL Embryos and fry LC50 (9 d) Birge and Black
catfish boric acid 1977
Goldfish Boric acid 75 mglL Embryos and fry; hard LC50 (7 d) Birge and Black
Borax water 1977
59 mglL
Minnows Boric acid 18,000-19,000 Distilled water Minimum lethal dose EPA 1986
mgIL
19,000-19,500 Hard waler
mg/L
Borax 19,000-19,500 Distilled and hard Minimum lethal dose Sprague 1972
mglL water
Anhydrous 3,000-7,000
borax mg/L
Boric acid 1,600-3,700
mg/L
Mosquitofish Boric acid 979 mg B/L Adults LC50 (96 hr) Birge and Black.
( Gambusia 1977
affinis)
Rainbow trout 339 mg/L Adults LC50 (48 hr) Sprague 1972:
Birge and Black
1977; Lewis
and Valentine
1981
Amphibians
Toad (Buto Boric acid 874 mg B/L Embryos, 24-hr Edema, microcephalia, EPA 1975
vulgaris) exposure short tail, suppressed
forebrain development
Fowler's toad Boric acid 145 mgll Embryos and LC50 (7.5 d) Birge and Black
tadpoles; soft water 1977
25-123 mg/L Embryos and
tadpoles; hard and
soft water
Leopard frog Boric acid 130 mg/L Embryos and LCSO (7.5 d) Birge and Black
tadpoles: soft water 1977
Borax 47-54 mg/l Embryos and
tadpoles; hard and
soft water
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