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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
environmental science
Lead in rice: Analysis of baseline lead levels in market and field collected rice grains
Science of the Total Environment, Volume 485-486, No. 1, Year 2014
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Description
In a large scale survey of rice grains from markets (13 countries) and fields (6 countries), a total of 1578 rice grain samples were analysed for lead. From the market collected samples, only 0.6% of the samples exceeded the Chinese and EU limit of 0.2μgg
-1
lead in rice (when excluding samples collected from known contaminated/mine impacted regions). When evaluating the rice grain samples against the Food and Drug Administration's (FDA) provisional total tolerable intake (PTTI) values for children and pregnant women, it was found that only people consuming large quantities of rice were at risk of exceeding the PTTI from rice alone. Furthermore, 6 field experiments were conducted to evaluate the proportion of the variation in lead concentration in rice grains due to genetics. A total of 4 of the 6 field experiments had significant differences between genotypes, but when the genotypes common across all six field sites were assessed, only 4% of the variation was explained by genotype, with 9.5% and 11% of the variation explained by the environment and genotype by environment interaction respectively. Further work is needed to identify the sources of lead contamination in rice, with detailed information obtained on the locations and environments where the rice is sampled, so that specific risk assessments can be performed. © 2014 Elsevier B.V.
Authors & Co-Authors
Norton, Gareth J.
United Kingdom, Aberdeen
University of Aberdeen
Williams, Paul N.
United Kingdom, Belfast
Queen's University Belfast
Adomako, Eureka E.A.
Ghana, Accra
University of Ghana
Price, Adam Huw
United Kingdom, Aberdeen
University of Aberdeen
Zhu, Yongguan
China, Beijing
Chinese Academy of Sciences
Zhao, F. J.
China, Nanjing
Nanjing Agricultural University
United Kingdom, Harpenden
Rothamsted Research
McGrath, Steve P.
United Kingdom, Harpenden
Rothamsted Research
Deacon, Claire M.
United Kingdom, Aberdeen
University of Aberdeen
Villada, Antia
United Kingdom, Aberdeen
University of Aberdeen
Sommella, Alessia
United Kingdom, Aberdeen
University of Aberdeen
Lu, Ying
China, Guangzhou
South China Agricultural University
Ming, Lei
China, Changsha
Hunan Agricultural University
De Silva, P. Mangala C.S.
Sri Lanka, Galle
University of Ruhuna
Brammer, Hugh
United Kingdom, Hove
East Sussex Bn3 2lp
Dasgupta, Tapash
India, Kolkata
University of Calcutta
Islam, M. Rafiqul
Bangladesh, Mymensingh
Bangladesh Agricultural University
Meharg, Andrew A.
United Kingdom, Belfast
Queen's University Belfast
Statistics
Citations: 66
Authors: 17
Affiliations: 12
Identifiers
Doi:
10.1016/j.scitotenv.2014.03.090
ISSN:
00489697
e-ISSN:
18791026
Research Areas
Food Security
Genetics And Genomics
Maternal And Child Health
Study Design
Cross Sectional Study
Study Approach
Quantitative
Participants Gender
Female