Inorganic arsenic and trace elements in Ghanaian grain staples

Eureka E. Adomako*, Paul N. Williams, Claire Deacon, Andrew A. Meharg

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

46 Citations (Scopus)

Abstract

A total of 549 samples of rice, maize, wheat, sorghum and millet were obtained from markets in Ghana, the EU, US and Asia. Analysis of the samples, originating from 21 countries in 5 continents, helped to establish global mean trace element concentrations in grains: thus placing the Ghanaian data within a global context. Ghanaian rice was generally low in potentially toxic elements, but high in essential nutrient elements. Arsenic concentrations in rice from US (0.22 mg/kg) and Thailand (0.15 mg/kg) were higher than in Ghanaian rice (0.11 mg/kg). Percentage inorganic arsenic content of the latter (83%) was, however, higher than for US (42%) and Thai rice (67%). Total arsenic concentration in Ghanaian maize, sorghum and millet samples (0.01 mg/kg) was an order of magnitude lower than in Ghanaian rice, indicating that a shift from rice-centric to multigrain diets could help reduce health risks posed by dietary exposure to inorganic As. (C) 2011 Elsevier Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)2435-2442
Number of pages8
JournalEnvironmental Pollution
Volume159
Issue number10
DOIs
Publication statusPublished - Oct 2011

Bibliographical note

Copyright © 2011 Elsevier Ltd. All rights reserved.

Keywords

  • ELEVATED LEVELS
  • Ghana
  • Rice
  • RISK-ASSESSMENT
  • US
  • COOKED RICE
  • CADMIUM
  • HUMAN HEALTH
  • BIOAVAILABILITY
  • DIETARY EXPOSURE
  • MARKET BASKET SURVEY
  • VARIETIES
  • Inorganic arsenic
  • Maize
  • Sorghum
  • Millet

Fingerprint Dive into the research topics of 'Inorganic arsenic and trace elements in Ghanaian grain staples'. Together they form a unique fingerprint.

Cite this