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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
environmental science
Urinary excretion of arsenic following rice consumption
Environmental Pollution, Volume 194, Year 2014
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Description
Patterns of arsenic excretion were followed in a cohort (n = 6) eating a defined rice diet, 300 g per day d.wt. where arsenic speciation was characterized in cooked rice, following a period of abstinence from rice, and other high arsenic containing foods. A control group who did not consume rice were also monitored. The rice consumed in the study contained inorganic arsenic and dimethylarsinic acid (DMA) at a ratio of 1:1, yet the urine speciation was dominated by DMA (90%). At steady state (rice consumption/urinary excretion) ∼40% of rice derived arsenic was excreted via urine. By monitoring of each urine pass throughout the day it was observed that there was considerable variation (up to 13-fold) for an individual's total arsenic urine content, and that there was a time dependent variation in urinary total arsenic content. This calls into question the robustness of routinely used first pass/spot check urine sampling for arsenic analysis. © 2014 Elsevier Ltd. All rights reserved.
Authors & Co-Authors
Meharg, Andrew A.
United Kingdom, Belfast
Queen's University Belfast
Williams, Paul N.
United Kingdom, Belfast
Queen's University Belfast
Deacon, Claire M.
United Kingdom, Aberdeen
University of Aberdeen
Norton, Gareth J.
United Kingdom, Aberdeen
University of Aberdeen
Hossain, Mahmud S.
United Kingdom, Aberdeen
University of Aberdeen
Bangladesh, Mymensingh
Bangladesh Agricultural University
Louhing, D.
United Kingdom, Aberdeen
University of Aberdeen
United Kingdom, Bath
University of Bath
Marwa, Ernest M.M.
United Kingdom, Aberdeen
University of Aberdeen
Tanzania
Soikoine University of Agriculture
Lawgalwi, Y.
United Kingdom, Aberdeen
University of Aberdeen
Libya, Sirte
Sirte University
Taggart, Mark A.
United Kingdom, Aberdeen
University of Aberdeen
United Kingdom, Inverness
University of the Highlands and Islands
Cascio, Claudia
United Kingdom, Aberdeen
University of Aberdeen
Belgium, Brussels
European Commission Joint Research Centre
Haris, Parvez I.
United Kingdom, Leicester
De Montfort University
Statistics
Citations: 41
Authors: 11
Affiliations: 9
Identifiers
Doi:
10.1016/j.envpol.2014.07.031
ISSN:
02697491
e-ISSN:
18736424
Study Design
Randomised Control Trial
Cohort Study