Total arsenic, inorganic arsenic, and other elements concentrations in Italian rice grain varies with origin and type

A. Sommella, C. Deacon, G. Norton, M. Pigna, A. Violante, A. A. Meharg*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

72 Citations (Scopus)


Rice is comparatively efficient at assimilating inorganic arsenic (As i), a class-one, non-threshold carcinogen, into its grain, being the dominant source of this element to mankind. Here it was investigated how the total arsenic (Ast) and Asi content of Italian rice grain sourced from market outlets varied by geographical origin and type. Total Cr, Cd Se, Mg, K, Zn, Ni were also quantified. Ast concentration on a variety basis ranged from means of 0.18 mg kg-1 to 0.28 mg kg -1, and from 0.11 mg kg-1 to 0.28 mg kg-1 by production region. For Asi concentration, means ranged from 0.08 mg kg-1 to 0.11 mg kg-1 by variety and 0.10 mg kg -1 to 0.06 mg kg-1 by region. There was significant geographical variation for both Ast and Asi; total Se and Ni concentration; while the total concentration of Zn, Cr, Ni and K were strongly influenced by the type of rice.

Original languageEnglish
Pages (from-to)38-43
Number of pages6
JournalEnvironmental Pollution
Publication statusPublished - Oct 2013


  • Food safety
  • Inorganic arsenic
  • Rice
  • Trace elements

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