Xueying Wang joined the TESLA team as a post-doctoral research fellow in September 2018, working for the project of Tellurium and Selenium Cycling and Supply (TeaSe), funded by the UK government through Natural Environment Research Council (NERC).

She graduated from Jiangnan University in China with a bachelor’s degree in environmental engineering. Then she went to France and obtained two master’s degrees in Environmental sciences from Paul-Cézanne University of Marseille, and in Earth science from École Normal Supérieure (ENS) of Lyon. She has undertaken various projects during graduate education, involving in membrane bioreactor, Si isotopes, Mo isotopes and micrometeorites. The interest in geochemistry led her afterwards to pursue PhD degree from ENS of Lyon, with the project of “tin isotope cosmochemistry” sponsored by the French institution of Agence nationale de la recherche (ANR). She then continued as a post-doc researcher in the same laboratory on the project of Mo isotopes for a short period.

Project

Te and Se are technologically important as they are essential in the production of photovoltaic (PV) solar panels. They both are rare elements in the Earth's crust, and presently mined only in small quantities. As PV productions will exhaust existing Te and Se supplies in the coming years, efficient exploring for new Te and Se deposits to ensure supply is in urgency.

This project of TeaSe aims to better understand the geological processes of Te and Se and thus to identify their sources, as well as to develop ore processing techniques to improve recovery of Te and Se from ore deposits, whilst minimizing environmental, social and economic impacts.  This work in TESLA is particularly focused on the spatial distribution and speciation of Te and Se in geological and biological samples, using laser ablation ICP-MS and HPLC-ICP-MS, respectively.

 

Laurie joined TESLA as a post-doctoral research fellow in March 2019, working on the Cambridge Programme to Assist Bangladesh in Lifestyle and Environmental risk reduction (CAPABLE), part of the Global Challenges Research Fund (GCRF).

His main interests are the behaviour and speciation of metal(loids) in the environment and their exposure to humans, with specific interest in the transfer of arsenic via atmospheric pathways. His research also focusses on the biogeochemical cycling of arsenic in rice paddy environments, which has included projects in China and Malaysia. Laurie obtained his PhD entitled “Arsenic inputs to terrestrial ecosystems through precipitation” from the Institute for Global Food Security (IGFS) at Queen’s University Belfast and continued working at the IGFS as a research fellow on a European Institute of Innovation and Technology (EIT) funded project, focussing on the removal of arsenic from rice grain. This was in collaboration with industrial partner Bühler and included developing commercially viable methods at their Application Centre in India.

Project

To address the rapid growth of non-communicable diseases (NCDs) in Bangladesh, the CAPABLE project focuses on the intertwined risk factors present such as water and air pollution, nutritional disorders and risk behaviours that contribute to NCDs. Rice, water and atmospheric particulates will be analysed as sources of arsenic, with toenails, sampled from three distinct regions in Bangladesh, analysed as biomarkers of human exposure to toxic elements.  

Wladiana joined TESLA in 2019 as academic visitor. She is Professor in analytical chemistry at Universidade Federal do Ceará in Brazil. Her research group in Brazil, Laboratório de Estudos em Química Aplicada (LEQA), works on development of new analytical methods for trace elemental analysis using emission and absorption atomic spectrometric techniques for different types of matrices.

POST-DOCTORAL PROJECT

Since seafood is the largest source of arsenic to many human populations and Brazil is the largest producer of shrimp aquaculture in Latin America, the project of Wladiana aims to conduct a study of As speciation, including arsenolipids, in wild and farmed shrimps from Brazil. Strategies for analysis of both water and fat soluble As species from shrimp samples will be studied.