Andrew A. Meharg, Paul N. Williams, Eureka Adomako, Youssef Y. Lawgali et al.
An extensive data set of total arsenic analysis for 901 polished (white) grain samples, originating from 10 countries from 4 continents, was compiled. The samples represented the baseline (i.e., notspecifically collected from arsenic contaminated areas), and all were for market sale in major conurba...
Jeffrey A. Harvey, Kévin Tougeron, Rieta Gols, Robin Heinen et al.
Abstract Climate warming is considered to be among the most serious of anthropogenic stresses to the environment, because it not only has direct effects on biodiversity, but it also exacerbates the harmful effects of other human‐mediated threats. The associated consequences are potentially severe, p...
Andrew A. Meharg, Gareth J. Norton, Claire Deacon, Paul N. Williams et al.
Cereal grains are the dominant source of cadmium in the human diet, with rice being to the fore. Here we explore the effect of geographic, genetic, and processing (milling) factors on rice grain cadmium and rice consumption rates that lead to dietary variance in cadmium intake. From a survey of 12 c...
Guo‐Xin Sun, Paul N. Williams, Anne‐Marie Carey, Yong‐Guan Zhu et al.
Rice is more elevated in arsenic than all other grain crops tested to date, with whole grain (brown) rice having higher arsenic levels than polished (white). It is reported here that rice bran, both commercially purchased and specifically milled for this study, have levels of inorganic arsenic, a no...
Gareth J. Norton, Mohammad Shafaei, Anthony J. Travis, Claire Deacon et al.
As the world’s population increases, demands on staple crops like rice (Oryza sativa L.) will also increase, requiring additional fresh water supplies for irrigation of rice fields. Safe alternate wetting and drying (AWD) is a water management technique that is being adopted across a number of count...
Gareth J. Norton, Guilan Duan, Tapash Dasgupta, Md. Rafiqul Islam et al.
The concentration of arsenic (As) in rice grains has been identified as a risk to human health. The high proportion of inorganic species of As (As(i)) is of particular concern as it is a nonthreshold, class 1 human carcinogen. To be able to breed rice with low grain As, an understanding of genetic v...
Gareth J. Norton, Md. Rafiqul Islam, Claire Deacon, Fang‐Jie Zhao et al.
For the world's population, rice consumption is a major source of inorganic arsenic (As), a nonthreshold class 1 carcinogen. Reducing the amount of total and inorganic As within the rice grain would reduce the exposure risk. In this study, grain As was measured in 76 cultivars consisting of Banglade...
Paul N. Williams, Shofiqul Islam, Md. Rafiqul Islam, M. Jahiruddin et al.
A reconnaissance of 23 paddy fields, from three Bangladesh districts, encompassing a total of 230 soil and rice plant samples was conducted to identify the extent to which trace element characteristics in soils and irrigation waters are reflected by the harvested rice crop. Field sites were located ...
Ying Lü, Eureka Adomako, A. R. M. Solaiman, Md. Rafiqul Islam et al.
Factors responsible for paddy soil arsenic accumulation in the tubewell irrigated systems of the Bengal Delta were investigated. Baseline (i.e., nonirrigated) and paddy soils were collected from 30 field systems across Bangladesh. For each field, soil sampled at dry season (Boro) harvest i.e., the c...
Gareth J. Norton, Paul N. Williams, Eureka Adomako, Adam H. Price et al.
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 0.2 μg g(-1) lead in rice (when excluding samples c...
Eureka Adomako, A. R. M. Solaiman, Paul N. Williams, Claire Deacon et al.
A field survey was conducted in arsenic impacted and non-impacted paddies of Bangladesh to assess how arsenic levels in rice (Oryza sativa L.) grain are related to soil and shoot concentrations. Ten field sites from an arsenic contaminated tubewell irrigation region (Faridpur) were compared to 10 fi...
Gareth J. Norton, Md. Rafiqul Islam, Guilan Duan, Ming Lei et al.
Arsenic (As) accumulation in rice grains is a risk to human health. The mechanism of transfer of As from the shoot into the grain during grain filling is unknown at present. In this study As speciation in the shoot and grains at maturity were examined, and the relationships between phosphorus (P) an...
Andrew A. Meharg, Paul N. Williams, Claire Deacon, Gareth J. Norton et al.
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 wer...
Mahmud Hossain, Paul N. Williams, Adrien Mestrot, Gareth J. Norton et al.
The biogeochemistry of arsenic (As) in sediments is regulated by multiple factors such as particle size, dissolved organic matter (DOM), iron mobilization, and sediment binding characteristics, among others. Understanding the heterogeneity of factors affecting As deposition and the kinetics of mobil...
Gareth J. Norton, Tapash Dasgupta, Md. Rafiqul Islam, Shofiqul Islam et al.
It has previously been shown that across different arsenic (As) soil environments, a decrease in grain selenium (Se), zinc (Zn), and nickel (Ni) concentrations is associated with an increase in grain As. In this study we aim to determine if there is a genetic element for this observation or if it is...