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Phosphorus amendment reduces bioavailability of lead to mallards ingesting contaminated sediments

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Phosphorus amendment reduces bioavailability of lead to mallards ingesting contaminated sediments; 2004; Article; Journal; Archives of Environmental Contamination and Toxicology; Heinz, G. H.; Hoffman, D.J.; Audet, D.J.

Summary

Lead poisoning of waterfowl has been reported for decades in the Coeur d' Alene River Basin in Idaho as a result of the ingestion of lead-contaminated sediments. We conducted a study to determine whether the addition of phosphoric acid to sediments would reduce the bioavailability of lead to mallards (Anas platyrhynchos). When sediments were amended with 1 % phosphorus under laboratory conditions, and diets containing 12% amended sediment were fed to mallards, reductions in tissue lead were 43% in blood, 41 % in liver, and 59% in kidney with sediment containing about 4,520 ug/g lead on a dry-weight basis and 41, 30, and 57% with sediment containing about 6,990 ug/g lead. When sediments were treated with phosphorus and left to age for [...]

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Type Scheme Key
local-index unknown 5224305
local-pk unknown 5224305
series unknown Archives of Environmental Contamination and Toxicology

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citationTypeArticle
journalArchives of Environmental Contamination and Toxicology
languageEnglish
parts
typevolume
value46
typeissue
value4

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