Arsenic speciation and heavy metal distribution in polished rice grown in Guangdong Province, Southern China

Food Chemistry
Li MaZhaoguang Yang

Abstract

Arsenic speciation and heavy metal distributions have been investigated in locally grown rice grains from Guangdong Province, Southern China. A total of 41 polished rice grain samples were collected throughout Guangdong Province. Arsenite (As(III)), as the predominant form found in the rice, was positively correlated (p<0.01) with total As (tAs) concentration. However, the percentage of As(III) reduced while tAs concentration increased (r=-0.361, p<0.05), due to restricted accumulation and translocation of As(III) in rice grains at high level of tAs. Statistical and geostatistical analyses were applied to investigate potential origins of heavy metals in rice. Only Cd, Cu and Ni were identified as influenced by anthropogenic sources such as industrial and commercial activities. As and Pb were primarily controlled by natural occurrence. The results of health risk assessment implied that continuous intake of rice grown in Guangdong Province could cause considerably non-carcinogenic and carcinogenic risk to local inhabitants.

Citations

Jan 14, 2018·Environmental Science and Pollution Research International·Yuyu JiaZhaoguang Yang
Nov 7, 2019·Food Additives & Contaminants. Part B, Surveillance·Leticia García-RicoAna Lilia Lopez-Duarte
Feb 14, 2019·Environmental Science and Pollution Research International·Fan DuDeliang Li
Apr 19, 2020·Environmental Science and Pollution Research International·Zhaoxue ZhangZhaoguang Yang
Sep 19, 2018·Environmental Science and Pollution Research International·Fan DuLin Wang
Mar 10, 2019·Environmental Science and Pollution Research International·Muyesaier TudiCordia Chu
Mar 17, 2020·Environmental Science and Pollution Research International·Fei LianZhengguo Song
Nov 7, 2020·Journal of Hazardous Materials·Munish Kumar UpadhyaySudhakar Srivastava
Oct 13, 2021·Environmental Science and Pollution Research International·Zijuan ZhongYingxin Yu
Dec 1, 2021·Environmental Science and Pollution Research International·Fanghui WangHuanhuan Liu

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