Affiliations

• ¹ Inorganic Geochemistry, British Geological Survey, Nottingham, UK. mwatts@bgs.ac.uk.
• ² School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou, China.
• ³ Department of Geology and Geoenvironment, National and Kapodistrian University of Athens, Athens, Greece.
• ⁴ Department of Earth Science, Faculty of Earth and Environmental Sciences, University for Development Studies, Tamale, Ghana.
• ⁵ SEGH, British Geological Survey, Nottingham, UK.
• ⁶ University British Columbia, Kalowna, Canada.
• ⁷ Engineering and Environment, Northumbria University, Newcastle upon Tyne, UK.
• ⁸ University of Texas at Dallas, Richardson, USA.
• ⁹ Gibson Consulting and Training, Tarporley, UK.
• ¹⁰ Inorganic Geochemistry, British Geological Survey, Nottingham, UK.
• ¹¹ Jinan University, Guangzhou, China.
• ¹² University of the West of Scotland, Blantyre, UK.
• ¹³ Departamento de Ciências da Terra, Escola de Ciências, Universidade do Minho, Campus de Gualtarl, Braga, Portugal.
• ¹⁴ Copperbelt University, Kitwe, Zambia.
• ¹⁵ International Agency for Research Cancer, WHO, Lyon, France.
• ¹⁶ Instituto ed Geofísica, Universidad Nacional Autónoma de México, Mexico City, Mexico.
• ¹⁷ Islamic Azad University of Ahvaz, Ahvaz, Iran.
• ¹⁸ Department of Geology, University of Ibadan, Ibadan, Nigeria.
• ¹⁹ Department of Environmental Biology and Health, School of Environmental Studies, University of Eldoret, Eldoret, Kenya.
• ²⁰ Manchester Metropolitan University, Manchester, UK.
• ²¹ SpringerNature, New York, USA.
• ²² University of Exeter, Exeter, UK.
• ²³ Geology Department, Faculty of Science, Arish University, Arish, Egypt.
• ²⁴ University of Strathclyde, Glasgow, UK.
• ²⁵ Southern University of Science and Technology, Shenzhen, China.
• ²⁶ Toho University, Funabashi, Japan.
• ²⁷ NASA Astrobiology Institute, Mountain View, USA.
• ²⁸ National University of Ireland, Galway, Ireland.
• ²⁹ Fauji Fertiliser Company Ltd, Rawalpindi, Pakistan.