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 Cuidelines

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Table 4.-Biological effects of arsenicals in the diet on selected species-Continued

Concentration
As in diet
Species compound (mglkg) Concentration in biomass and other effects Reference
Blrds-Continued
Chicken Arsanilic 180 1.3 mglkg in eggs; embryo viability normal Libby et al.
acid 1953
>1,000 Depressed growth Abbott
et al. 1959
2,000 Mortality increased 33%
2,250 Mortality increased 40%
Mammals
Domestic Total As 58 No outwardly visible effect. Tissue As increased after Eisler 1988
sheep 3-week exposure, then declined rapidly after return to
low-As diet
Mice As (III) 0.46 No significant difference in growth and survival Schroeder and
Balassa 1967
Rats As (1I1)+(V) 5 No significant differences in growth and survival Sharpless and
Metzger 1940
20 Growth decreased by 50%

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Table 5.-U.S. Environmental Protection Agency standards and criteria
for arsenic
[See Appendix II for explanation of terms. Sources.: EPA, 1985, 1995)

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Status Known carcinogen; EPA priority pollutant
Drinking water MCL 1 50 IJglL
Freshwater criteria (AS-Ill) 360 J..lglL for acute exposure
190 IJglL for chronic exposure
Freshwater LOAEL2 (As-V) 850 J..lglL for acute exposure
1/10,000 cancer risk 2J..lglL
1/1,000,000 cancer risk 0.018 IJglL (water and organisms)
0.14 IJglL (organisms only)

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I Maximum contaminant level
2 Lowest-observed-adverse effect level.

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