All Outputs (107)

Assessment of potentially toxic elements in vegetables cultivated in urban and peri-urban sites in the Kurdistan region of Iraq and implications for human health (2019)
Journal Article

Vegetable fields in and around urban areas in the Kurdistan region of Iraq may have higher than background concentrations of potentially toxic elements (PTEs) from contamination sources including municipal waste disposal and waste water used for irri... Read More about Assessment of potentially toxic elements in vegetables cultivated in urban and peri-urban sites in the Kurdistan region of Iraq and implications for human health.

Uptake of trace elements by food crops grown within the Kilembe copper mine catchment, Western Uganda (2019)
Journal Article

The mining and processing of copper from the Kilembe mine between 1956 and 1982 left behind millions of tons of cupriferous and cobalt ferrous mine tailings within the Kilembe mine catchment. Subsequent erosion and deposition of the tailings into adj... Read More about Uptake of trace elements by food crops grown within the Kilembe copper mine catchment, Western Uganda.

Investigating the use of microdialysis and SEC-UV-ICP-MS to assess iodine interactions in soil solution (2019)
Journal Article

Element cycling in the terrestrial environment is heavily reliant upon processes that occur in soil solution. Here we present the first application of microdialysis to sample iodine from soil solution. In comparison to conventional soil solution extr... Read More about Investigating the use of microdialysis and SEC-UV-ICP-MS to assess iodine interactions in soil solution.

Chemical and isotopic fractionation of lead in the surface soils of Egypt (2019)
Journal Article

Chemical fractionation via sequential extraction (SEP) combined with isotopic analysis of Pb was used to investigate the origins and reactivity of Pb in 66 topsoil samples collected from 12 different locations in Egypt. The total soil Pb concentratio... Read More about Chemical and isotopic fractionation of lead in the surface soils of Egypt.

The risk of selenium deficiency in Malawi is large and varies over multiple spatial scales (2019)
Journal Article

Selenium (Se) is an essential human micronutrient. Deficiency of Se decreases the activity of selenoproteins and can compromise immune and thyroid function and cognitive development, and increase risks from non-communicable diseases. The prevalence o... Read More about The risk of selenium deficiency in Malawi is large and varies over multiple spatial scales.

Iodine bioavailability in acidic soils of Northern Ireland (2019)
Journal Article

Iodine is an essential trace element for humans and grazing animals and is often deficient. Our aim was to investigate the role of soil properties in retaining and ‘fixing' iodine in soils and thereby controlling its phyto-availability to grass. Soil... Read More about Iodine bioavailability in acidic soils of Northern Ireland.

Iodine uptake, storage and translocation mechanisms in spinach (Spinacia oleracea L.) (2019)
Journal Article

© 2019, Springer Nature B.V. Iodine is an essential micronutrient for human health; phytofortification is a means of improving humans’ nutritional iodine status. However, knowledge of iodine uptake and translocation in plants remains limited. In thi... Read More about Iodine uptake, storage and translocation mechanisms in spinach (Spinacia oleracea L.).

Optimisation of a current generation ICP-QMS and benchmarking against MC-ICP-MS spectrometry for the determination of lead isotope ratios in environmental samples (2018)
Journal Article

© 2018 The Royal Society of Chemistry. Novel ANOVA methodology was used to benchmark ICP-QMS against MC-ICP-MS for Pb isotope ratios, demonstrating "fitness-for-purpose" in environmental source apportionment. The precision and accuracy of lead (Pb)... Read More about Optimisation of a current generation ICP-QMS and benchmarking against MC-ICP-MS spectrometry for the determination of lead isotope ratios in environmental samples.

Impact of environmental radiation on the health and reproductive status of fish from Chernobyl (2018)
Journal Article

© 2018 American Chemical Society. Aquatic organisms at Chernobyl have now been chronically exposed to environmental radiation for three decades. The biological effects of acute exposure to radiation are relatively well documented, but much less is kn... Read More about Impact of environmental radiation on the health and reproductive status of fish from Chernobyl.

Chromium speciation in foodstuffs: a review (2018)
Journal Article

Numerous critical reviews have evaluated exposure to toxic and carcinogenic hexavalent chromium (Cr(VI)) from a number of pathways; including workplace air, cement and packaging materials. The contribution of foodstuffs to dietary Cr(VI) has been inc... Read More about Chromium speciation in foodstuffs: a review.

Iodine soil dynamics and methods of measurement: a review (2017)
Journal Article

Iodine is an essential micronutrient for human health: insufficient intake can have multiple effects on development and growth, affecting approximately 1.9 billion people worldwide. Previous reviews have focussed on iodine analysis in environmental a... Read More about Iodine soil dynamics and methods of measurement: a review.

Lead in Egyptian soils: Origin, reactivity and bioavailability measured by stable isotope dilution (2017)
Journal Article

© 2017 Elsevier B.V. The current availability of Pb in Egyptian soils and associated plants were studied in 15 locations (n = 159) that had been historically subjected to industrial and automobile Pb emissions. Isotopic dilution with enriched 204Pb w... Read More about Lead in Egyptian soils: Origin, reactivity and bioavailability measured by stable isotope dilution.

Predicting trace metal solubility and fractionation in urban soils from isotopic exchangeability (2017)
Journal Article

Metal-salt amended soils (MA, n = 23), and historically-contaminated urban soils from two English cities (Urban, n = 50), were investigated to assess the effects of soil properties and contaminant source on metal lability and solubility. A stable is... Read More about Predicting trace metal solubility and fractionation in urban soils from isotopic exchangeability.

Determining the fate of selenium in wheat biofortification: an isotopically labelled field trial study (2017)
Journal Article

Aims The principal aim of this research was to quantify retention of a single, realistic Se biofortification application (10 g ha-1) in contrasting soils over two growing seasons utilizing an enriched stable Se isotope (77Se) to discriminate between... Read More about Determining the fate of selenium in wheat biofortification: an isotopically labelled field trial study.

Effects of incubation time and filtration method on Kd of indigenous selenium and iodine in temperate soils (2017)
Journal Article

In this study, the effects of incubation time and the method of soil solution extraction and filtration on the empirical distribution coefficient (Kd) obtained by de-sorbing indigenous selenium (Se) and iodine (I) from arable and woodland soils under... Read More about Effects of incubation time and filtration method on Kd of indigenous selenium and iodine in temperate soils.

Historical trends in iodine and selenium in soil and herbage at the Park Grass experiment, Rothamsted Research, UK (2017)
Journal Article

Long term trends in iodine and selenium retention in soil, and uptake by herbage, were investigated in archived samples from the Park Grass Experiment, initiated in 1856 at Rothamsted, UK. Soil (0-23 cm) and herbage samples from plots receiving vario... Read More about Historical trends in iodine and selenium in soil and herbage at the Park Grass experiment, Rothamsted Research, UK.

Population exposure to trace elements in the Kilembe copper mine area, Western Uganda: a pilot study (2016)
Journal Article

The mining and processing of copper in Kilembe, Western Uganda, from 1956 to 1982 left over 15 Mt. of tailings containing cupriferous and cobaltiferous pyrite dumped within a mountain river valley. This pilot study was conducted to assess the nature... Read More about Population exposure to trace elements in the Kilembe copper mine area, Western Uganda: a pilot study.

Kinetic study of time-dependent fixation of UVI on biochar (2016)
Journal Article

Biochar, a by-product from the production of biofuel and syngas by gasification, was tested as a material for adsorption and fixation of UVI from aqueous solutions. A batch experiment was conducted to study the factors that influence the adsorption a... Read More about Kinetic study of time-dependent fixation of UVI on biochar.

Iodine binding to humic acid (2016)
Journal Article

The rate of reactions between humic acid (HA) and iodide (I-) and iodate (IO3-) have been investigated in suspensions spiked with 129I at concentrations of 22, 44 and 88 µg L-1 and stored at 10oC. Changes in the speciation of 129I-, 129IO3- and mixe... Read More about Iodine binding to humic acid.

Using isotopic dilution to assess chemical extraction of labile Ni, Cu, Zn, Cd and Pb in soils (2016)
Journal Article

Chemical extractants used to measure labile soil metal must ideally select for and solubilise the labile fraction, with minimal solubilisation of non-labile metal. We assessed four extractants (0.43 M HNO3, 0.43 M CH3COOH, 0.05 M Na2H2EDTA and 1 M Ca... Read More about Using isotopic dilution to assess chemical extraction of labile Ni, Cu, Zn, Cd and Pb in soils.