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Confirmation of an acute no-observed-adverse-effect and low-observed-adverse-effect level for copper in bottled drinking water in a multi-site international study

Biomedical Sciences Research Institute Computer Science Research Institute Environmental Sciences Research Institute Nanotechnology & Advanced Materials Research Institute

Araya, M, Chen, BH, Klevay, LM, Strain, JJ, Johnson, L, Robson, P, Shi, W, Nielsen, F, Zhu, HG, Olivares, M, Pizarro, F and Haber, LT (2003) Confirmation of an acute no-observed-adverse-effect and low-observed-adverse-effect level for copper in bottled drinking water in a multi-site international study. Regulatory Toxicology and Pharmacology, 38 (3). pp. 389-399. [Journal article]

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DOI: 10.1016/j.yrtph.2003.08.001

Abstract

In a double blind, 3 x 3 factorial (volume x dose) study, 70 adult females (18-60 years of age) at four different international sites (total pooled n = 269) were given 100, 150, or 200 ml of bottled drinking water with 0.4, 0.8, or 1.2 mg of copper (Cu) as the sulfate salt once each week. Two additional doses (0 and 1.6mg Cu) were added at the 200ml volume to determine a dose-response relationship and corroborate previously reported results. All subjects completed a questionnaire at 0, 0.25, and I h post-dosing that screened for positive gastrointestinal (GI) effects (nausea, vomiting, abdominal pain, and diarrhea). Nausea was the most prevalent symptom reported and was generally reported within the first 15 min (water volume, p < 0.032; copper dose, p < 0.0001; and water volume x copper interaction, p < 0.97). As volume increased, the effect of Cu-induced nausea decreased; as Cu dose increased, the incidence of nausea increased. At 200 ml, a significant increase in reported incidence of nausea at 0.25 h occurred at 1.2 mg Cu (6 mg Cu/L), indicating a NOAEL of 0.8 mg Cu (4 mg Cu/L) for adult females. These data confirm a previously determined human acute NOAEL for Cu added to distilled water, and provide additional, controlled human data for determining safe concentrations of Cu in drinking water. (C) 2003 Elsevier Inc. All rights reserved.

Item Type:Journal article
Faculties and Schools:Faculty of Life and Health Sciences
Faculty of Life and Health Sciences > School of Biomedical Sciences
Research Institutes and Groups:Biomedical Sciences Research Institute
Biomedical Sciences Research Institute > Northern Ireland Centre for Food and Health (NICHE)
ID Code:5188
Deposited By:Mrs Alison Deehan
Deposited On:14 Jan 2010 14:41
Last Modified:22 Aug 2012 09:57

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