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...
Paul N. Williams, Md. Rafiqul Islam, Eureka Adomako, Andrea Raab et al.
Concern has been raised by Bangladeshi and international scientists about elevated levels of arsenic in Bengali food, particularly in rice grain. This is the first inclusive food market-basket survey from Bangladesh, which addresses the speciation and concentration of arsenic in rice, vegetables, pu...
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...
Andrew A. Meharg, Enzo Lombi, Paul N. Williams, Kirk G. Scheckel et al.
Synchrotron-based X-ray fluorescence (S-XRF) was utilized to locate arsenic (As) in polished (white) and unpolished (brown) rice grains from the United States, China, and Bangladesh. In white rice As was generally dispersed throughout the grain, the bulk of which constitutes the endosperm. In brown ...
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...
Fang‐Jie Zhao, Eleanor Harris, Yan Jia, Jincai Ma et al.
Methylation of arsenic in soil influences its environmental behavior and accumulation by plants, but little is known about the factors affecting As methylation. As speciation was determined in the pore waters of six soils from diverse geographical locations over 54 days of incubation under flooded c...
Gareth J. Norton, Alex Douglas, Brett Lahner, Elena Yakubova et al.
The mineral concentrations in cereals are important for human health, especially for individuals who consume a cereal subsistence diet. A number of elements, such as zinc, are required within the diet, while some elements are toxic to humans, for example arsenic. In this study we carry out genome-wi...
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, Shannon R. M. Pinson, Jill Alexander, Susan McKay et al.
• Inorganic arsenic (As(i) ) in rice (Oryza sativa) grains is a possible threat to human health, with risk being strongly linked to total dietary rice consumption and consumed rice As(i) content. This study aimed to identify the range and stability of genetic variation in grain arsenic (As) in rice....
Md. Asaduzzaman Khan, Jacqueline L. Stroud, Yong‐Guan Zhu, S. P. McGrath et al.
Some paddy soils in the Bengal delta are contaminated with arsenic (As) due to irrigation of As-laden groundwater, which may lead to yield losses and elevated As transfer to the food chain. Whether these soils have a higher As bioavailability than other soils containing either geogenic As or contami...
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 ...
Zhengyu Shi, Manus Carey, Caroline Meharg, Paul N. Williams et al.
Abstract One of cadmium’s major exposure routes to humans is through rice consumption. The concentrations of cadmium in the global polished (white), market rice supply-chain were assessed in 2270 samples, purchased from retailers across 32 countries, encompassing 6 continents. It was found on a glob...
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...
Xiangdong Zhu, Litao Lin, Mingyue Pang, Chao Jia et al.
Abstract Flash Joule heating (FJH) is an emerging and profitable technology for converting inexhaustible biomass into flash graphene (FG). However, it is challenging to produce biomass FG continuously due to the lack of an integrated device. Furthermore, the high-carbon footprint induced by both exc...
Jacqueline L. Stroud, Mujib Khan, Gareth J. Norton, Md. Rafiqul Islam et al.
Arsenic (As) contamination of paddy soils threatens rice cultivation and the health of populations relying on rice as a staple crop. In the present study, isotopic dilution techniques were used to determine the chemically labile (E value) and phytoavailable (L value) pools of As in a range of paddy ...