SEGH Articles

The CHASE Project: Chemical composition of airborne particles and snow in East Antarctica (Dronning Maud Land)

15 January 2018
Professor Nadine Mattielli, of Universite Libre de Bruxelles, provides us with an exciting introduction to the CHASE project, including some breathtaking photographs from a recent fieldwork expedition to Antarctica.

World Iodine Association first international conference, Pisa 2017

04 January 2018
In November 2017 a group of students from BGS and the University of Nottingham researching iodine geochemistry and its affect on human health attended the first international conference of the World Iodine Association - Iodine in Food Systems and Health - in Pisa, Italy. Olivier Humphrey, undertaking his PhD with the Center for Environmental Geochemistry, reports on his time at the event.

34th SEGH International Conference on Geochemistry for Sustainable Development

26 November 2017
AVANI Victoria Falls Resort, Livingstone, Zambia 2-7th July 2018. Registrations now open.

In Memoriam: Willard R Chappell PhD

24 November 2017
With great sadness we have learned of the death of Willard (Bill) Chappell on October 7, 2017.

Michael Watts elected SEGH President

10 October 2017
Dr Michael Watts was recently elected SEGH President, following a handover from Dr Chaosheng Zhang. Michael has been involved in the SEGH for nearly 15 years as a member of the European board and active on the International board via his role in redesigning the website since 2010.

A model for Quality Assurance, Lab Management and Good Laboratory Practices for Africa

06 October 2017
David and Takesure describe their efforts to improve quality assurance in the environmental chemistry labs in Kenya and Zimbabwe

Book review: Health protection, Principles and practice

02 July 2017
Τhe interface between the environment and health is a fascinating research topic and has traditionally been the central focus of SEGH. In fact it is this field that brings together geoscientists and medical and public health researchers and practitioners to address health problems caused or exacerbated by environmental hazards and natural disasters.

SEGH Member participated in the Antarctic Circumpolar Expedition

02 July 2017
Francois De Vleeschouwer, researcher at EcoLab, (CNRS, Toulouse France) and SEGH secretary, had the opportunity to embark onboard the RV Akademik Treshnikov to participate in the ACE Expedition

Health in Impact Assessment: primer published

02 July 2017
The changes to the EIA directive as recast in April this year (2017) brings human health very firmly into consideration. Any project which is subject to EIA (Environmental Impact assessment) is required to evaluate the impact from the project on human and population health.

Geochemistry in Africa

26 January 2017
Read about VicFalls 2018 and fieldwork in the Copperbelt

ISEH 2016, ISEG 2016 & Geoinformatics 2016

26 January 2017
Joint International Conference on Environment, Health, GIS and Agriculture Galway, Ireland, August 14 20, 2016

Zoo Elephants Aid Wild counterparts in the Kruger National Park

04 November 2016
Eight zoo elephants from Knowsley Safari Park and Twycross Zoo have been contributing to work that is being carried out to reduce Human-Elephant Conflict surrounding the Kruger National Park.

Fate of smelter dusts in soils

14 October 2016
Winner of the best poster prize at the SEGH meeting in Brussels. Alice Jarosikova, PhD student from Charles University in Prague, describes her research on fate of smelter-derived dust particles in soils.

Health Protection: Principles and practice

14 October 2016
Do you struggle with understanding how to respond to the human health implications of environmental contamination? Dr Alex Stewart, a medical board member of SEGH, is an editor and contributing author of a new text covering the public health response.

Winner of the Malcolm Brown Outstanding Young Scientist Award

12 August 2016
Gabriel Enge won the Malcolm Brown outstanding young scientist award at the 32nd SEGH International conference in Brussels. He describes his research leading to this award.

Long distance electron transport in the seafloor

21 July 2016
At the SEGH 32nd International Conference recently in Brussels, Sebastiaan Van de Velde won the best prize for PhD student oral presentation. Here he tells us a little about his research.

Malcolm Brown: at the heart of SEGH

03 July 2016
It was with great sadness that we heard of the passing of Malcolm Brown in April after a long battle with illness. Malcolm worked at the heart of SEGH as the Secretary of the society

Award for work on tackling hidden hunger

25 March 2016
Estimates suggest that more than 2 billion people could be suffering from micronutrient deficiencies.

Urban Geochemical Mapping by the Geochemistry Expert Group of EuroGeoSurveys

25 March 2016
Given the fact that by 2050 more than 80% of the European population will be living in cities (United Nations, 2014), the quality of the urban environment is becoming an important issue in the 21st century.

Mapping Hidden Hunger in Malawi

14 February 2016
Maps for Malawi predict spatial variation in the dietary supply of seven essential elements (calcium, copper, iodine, iron, magnesium, selenium and zinc).

SEGH Representation - Scientific Events in Pakistan

10 January 2016
Dr Munir Zia gives an update on SEGH representation at two scientific events during 2015 in Pakistan

Geology for Global Development: GfGD

12 December 2015
Fighting Global Poverty: Geology and the Sustainable Development Goals

Putting the Health in SEGH

18 November 2015
Dr Alex Stewart, recently retired from Public Health England, has been an active member of the SEGH International board over many years and a major driving force in bringing the health community together with environmental scientists to promote inter-disciplinary research.

32nd International SEGH conference, Brussels 2016

17 November 2015
32nd International SEGH conference, Universite Libre de Bruxelles, Brussels, Belgium, 4th-8th July, 2016.

Remedial Solutions for polluted soils: developing research collaboration between UK and China

17 November 2015
Hunan University of Science & Technology (HNUST), Xiangtan, PR, China. The School of Civil Engineering houses a Key Library for Shale Gas extraction and has undertaken work to assess resources and their low impact extraction.

Assessment of the environmental conditions of the Calore river basin (south Italy): a stream sediment approach

23 October 2015
Daniela Zuzolo from the University of Sannio won the Hemphill prize for best student presentation at SEGH 2015 in Bratislava. She provides a follow-up on her presentation.

SEGH 2015: a PhD researchers perspective

15 October 2015
Dan Middleton, a PhD student from the University of Manchester, based at the Centre for Environmental Geochemistry at the British Geological Survey, shares his account of the conference proceedings.

Environmental Geochemistry in Greece: Opportunities and obstacles to development

28 September 2015
What are the opportunities and obstacles to development in the field of environmental geochemistry and health in Greece nowadays?

The new SEGH President: Chaosheng Zhang

24 September 2015
Dr Chaosheng Zhang formally took over the position of President of SEGH in June at SEGH 2015 in Bratislava.

SEGH 2015 Conference Report

24 September 2015
Bratislava welcomed over 100 delegates from over 25 countries to SEGH 2015.

Working together to combat environmental pollution and inform agricultural strategies

10 July 2015
Environmental scientists give an account of their experience from a Commonwealth Professional Fellowship in the UK.

SEGH Urban Soils and Metal Contamination Conference, March 2015 University of Texas-Arlington

07 July 2015
The United States Section of the Society for Environmental Geochemistry and Health (SEGH), along with the University of Texas-Arlington (UTA) sponsored a conference on Urban Soils and Metal Contamination: Issues & Remedies, March 30th to April 1, 2015 on the campus of UTA.

Is there an environmental link to esophageal cancer in Tanzania?

07 July 2015
Scientists from the Centre for Environmental Geochemistry are helping health organisations understand why esophageal cancer is localised within specific areas of the African Rift Valley. Whilst various causal factors are now under investigation, such as high-strength kill-me-quick alcohol consumption or hot tea drinking, it is difficult to fully explain the localised nature of the burden. Here Dr Michael Watts outlines why soil around Mount Kilimanjaro could unearth some answers.

SEGH 2015 Bratislava

09 December 2014
The local organising institution of the 31st International Conference of the SEGH in 2015 was established in 1940 and performs the tasks of the State Geological Survey of the Slovak Republic.

Arsenic Biogeochemistry and Health

04 November 2014
The success of the 29th SEGH conference produced a special issue of papers presenting recent advances in various aspects of environmental and health impacts of contaminants, published in Environmental Geochemistry and Health

Global dispersion of trace metals in South America

04 November 2014
Pre-Hispanic metallurgical activities released enough metals to be transported throughout the entire South American continent.

The Joy's of PhD research in two countries

06 October 2014
Edwards project aim is to improve the accuracy and spatial resolution of dietary mineral supply estimates in Malawi and to investigate the potential of agricultural solutions to mitigate dietary mineral deficiencies. He has been conducting fieldwork in Malawi during 2012-14.

Dust Deposition in snow from NorthEast Antarctica: mineralogical, morphological and chemical characterization

05 October 2014
Aubry Vanderstraeten is a PhD student and won the runner-up prize for best student poster at SEGH 2014.

SEGH 2014 Conference Report

08 September 2014
Northumbria University welcomed over 120 delegates from over 25 countries to SEGH 2014.

Arsenic hazard in rice from Kandal Province, Cambodia

08 September 2014
Peter Gilbert won the student prize at SEGH 2014 for best oral presentation.

Modeling global Iodine in Global Atmosphere and its Deposition

08 September 2014
Tomas Sherwen is an Atmospheric Chemistry PhD Student and won the SEGH 2014 student prize for best poster.

SEGH Journal Impact Factor News

03 August 2014
The Society's journal Environmental Geochemistry & Health (EGAH), received good news recently with the announcement of a significant increase in its impact factor, now reaching 2.573.

Environmental Geochemistry and Consultancy in Amazonia: from my archive

24 July 2014
The problem: mercury losses from informal gold mining and health risks to the miners (garimpeiros), gold traders and local riverine communities, by Past President Iain Thornton.

Centre for Environmental Geochemistry

15 June 2014
The Centre's research will focus on building established collaborations between the University of Nottingham and the British Geological Survey (across Departments, Schools and Faculties).

Is the Indian Sundarban and adjacent regions polluted by mercury? A case study and cross sectional view

05 June 2014
The Indian Sundarban and its adjacent regions are experiencing huge population loads in terms of domestic and industrial effluents from upstream highly urbanized Calcutta and surroundings

Urban soil of Athens, Greece: Local geology beats human pollution on trace elements

04 June 2014
Bearing in mind the historical absence of heavy industry within the Greater Athens and Piraeus area, the tested hypotheses was that local geology is important in controlling the distribution of potentially harmful trace elements in urban soil.

Brick Kilns and Fish: a Symbiotic Relationship?

08 April 2014
During the 1st two weeks in March Dr Andy Marriott and Dr Simon Chenery visited India to foster ties between India and UK environmental scientists.

Back to the Future: Brian E Davies (Past President)

08 April 2014
Should we reduce our emphasis on the toxic elements? Is it time to go back to the future?

Diffusive gradients in thin films (DGT): An emerging technique for bioavailability assessment of chemicals in the environment

08 April 2014
As a rapidly developing passive sampling method for the labile forms of chemicals in waters, sediments and soils, the diffusive gradients in thin films (DGT) technique has significant advantages over conventional methods: in situ measurement, time averaged concentrations and high spatial resolution.

SEGH 2014

06 February 2014
Dr Jane Entwistle is Head of Department of Geography at Northumbria University and is organising the 2014 SEGH conference. Here she gives some insight into the host organisation and city.

SEGH membership

05 February 2014
A hidden opportunity: Collaborative Development of teaching and learning in Environmental Geochemistry and Health at the Department of Geology, University of Calabar, Nigeria

The Future is Africa

05 February 2014
In early January Dr Michael Watts visited Zimbabwe and Zambia with a colleague from the University of Nottingham. They were funded from a Royal Society-DFID grant to foster science networks in Africa and to help strengthen scientific capacity. Here Michael tells us about his trip

An historical reconstruction of atmospheric heavy metals deposition from a peat bog record on the North Shore of the St. Lawrence Estuary, Quebec

01 October 2013
Peat bogs were used to reconstruct the history of atmospheric heavy metal deposition along the St. Lawrence Valley. Results from one of the study sites were presented at the 29th SEGH held in July 2013, Toulouse.

The new SEGH President: Andrew Hursthouse

08 September 2013
Professor Andrew Hursthouse formally took over the position of President of SEGH in August 2013 following election by the SEGH board.

Environmental Geochemistry and Health

07 September 2013
Environmental Geochemistry and Health Impact Factor is 2.076 for 2012.

Trace Metal inputs in French Pyrenees: a spatial and temporal case study in the Upper valley of the Vicdessos

02 May 2013
A human-environment observatory aims to monitor the evolution of human-environment interactions within the Upper Vicdessos valley. The aim is to collect data and integrate them to conduct a transdisciplinary research in a changing environment.

Measuring the Bioaccessibility of Potentially Harmful Elements in Soil

01 May 2013
Mark Cave provides some background for bioaccessibility testing and insight into the contribution it has made to the risk assessment industry.

Reducing human exposure to arsenic and simultaneously increasing selenium and zinc intake, by substituting non-aromatic rice with aromatic rice in the diet

01 May 2013
A team of scientists led by Dr Parvez Haris is carrying out research to identify ways of reducing human exposure to arsenic through diet

Tellus Border: Initial findings of a geo-environmental survey of the border region of Ireland

01 March 2013
The Tellus Border project is an EU INTERREG IVA-funded mapping project that involved baseline geochemical and geophysical surveys in the border region of Ireland, and the integration of data from these with existing data collected in Northern Ireland.

In Malawi "simple is not easy"

01 March 2013
Effectiveness of sanitation, hygiene practices, and water supply interventions serving Malawi and the surrounding countries.

Otoliths: The little “White” box recorders of the fish world

01 February 2013
The use of fish otolith (ear bone) microchemistry has enabled scientists understand better fish migratory patterns and stock identification

SEGH review of meetings

01 January 2013
Review of SEGH meetings and conferences reported in EGAH.

Studying the effects on soil organic matter of wildfires in central Portugal

01 January 2013
The main objective of this study is testing the efficacy of pyrolysis–gas chromatography/mass spectrometry (Py–GC/MS) as a fast analytical technique to detect wildfire-induced molecular alterations of the SOM in Mediterranean Leptosols.

Is it possible to remove polymeric nanoparticles from aqueous paints during the activated sludge treatment?

01 January 2013
It is well established that polymeric nanoparticles are biocompatible at macroscopic scale, but is their behaviour the same at nanoscale?

Spatial distribution of Pb, Cd and Cr concentrations in moss transplants from urban recreational areas in Lisbon, Portugal

03 December 2012
Metal concentrations in moss were used to assess the contribution of atmospheric pollution to the geochemistry of soil and ground-level dust, and discriminate urban pollution sources.

Sedimentary geochemistry of platinum in intertidal salt marsh sediments of the Tagus River Estuary, Lisbon, Portugal

03 December 2012
Studies of platinum in intertidal sediments have highlighted a number of features of Pt dynamics in saltmarsh environments.

The relationship between heavy metals and sedimentary organic matter in the Oxford Clay (Jurassic) of the southern UK

03 December 2012
Pin Ru is studying for a PhD in sedimentary organic matter and its interaction with waste in landfill sites

Urban sediments: Geochemistry and mineralogy towards improved risk assessments

07 November 2012
Raquel was a joint oral presentation winner at the ISEG meeting in Aveiro in July 2012. The main aim of Raquel’s present research is to characterize the presence of PHE in soils and urban sediments, exploring the spatial, geochemical and mineralogical linkages within and between these media.

Notes from Malawi

07 November 2012
Plant and crop selenium concentration shows strong geochemical control, and our data suggests widespread high prevalence of dietary Se deficiency across Malawi, primarily due to the low pH of the predominant soil types causing Se to be held in an unavailable form.

Report 9th ISEG, Aveiro, Portugal

07 November 2012
SEGH members were delighted to attend and participate in the 9th International Symposium on Environmental Geochemistry organised by staff from the University of Aveiro held during 15th - 22nd of July, 2012.

SESEH Promotes Collaborations with China in Environment and Health

01 October 2012
The 2012 Sino-European Symposium on Environment and Health (SESEH 2012) was successfully held at the National University of Ireland, Galway during August 20 - 25, 2012.

Emerging Contaminants in the environment – is there a risk to health?

12 August 2012
In Europe and North America, there has been a gradual decrease in common environmental contaminants (heavy metals such as lead, cadmium; persistent organic pollutants such as DDT, Dioxin, PAH’s) in the environment. Common environmental contaminants, however, remain a public health concern in developing countries and newly industrialised countries.

How useful are on-site measurements in environmental geochemistry?

12 August 2012
How reliable are on-site measurements? Can sound decisions be made using them, or should we stick to measurements made in the remote lab?

Depositional and ecological environments of the Bay of Bengal coast of northeast India

01 May 2012
Dr. Asok Kumar Bhattacharya summarises his work at the University of Calcutta on the Sundarban wetlands in India, including work on coastal sedimentology, impact of anthropogenic pollution and coastal zone management.

The nano way to cleaner water

04 April 2012
Nanomaterials provide potential for waste water remediation and metal removal and recycling. We envisage that this composite can cheaply and effectively be incorporated into a variety of configurations to improve water treatment.

Untreated Wastewater Irrigation to Vegetable Crops in Pakistan

03 March 2012
Wastewater has been widely used for irrigation of agricultural crops as the nutrients contained in the wastewater are considered beneficial to plant growth

The Indian Sundarban Mangrove wetland: an ecological perspective

01 February 2012
Dr Sarkar has carried out research on the changes in the ecological and pollution status of the Indian Sundarban mangrove wetlands, as a result of intense anthropological pressures affecting the biotic and abiotic compartments of this fragile ecosystem.

Exposure to Arsenic And Other Toxic Elements Through Eating Earth

01 February 2012
The practice of deliberately eating earth, known as geophagy has been common in many cultures across the world. Unfortunately, very little scientific research is being conducted in this area and its impact on human health.

Environmental Geochemistry Health: on-line access

01 January 2012
Environmental Geochemistry and Health is now available to via on-line access to members (Full and Student). Log in through www.segh.net to access the Springer back catalogue of EGH.

Waste glass as a substrate for As removal from drinking waters in Bangladesh: a laboratory and field-based study

03 December 2011
This research project examines the application of recycled glass and waste stainless steel fragments as a practical medium for As removal at a household scale.

Ozone as a remediation technique for the treatment of hydrocarbons in post industrial sites in Glasgow

01 November 2011
Andrew Robson was a runner up for the Springer / Hemphill Best student Oral presentation at SEGH 2011.

Environmental Public Health Tracking Proof of Concept Study: hazard tracking in private drinking water supplies

01 October 2011
The Health Protection Agency undertook a proof of concept study to appraise the chemical quality of private drinking water supplies in East Cornwall and map their metal and mineral content relative to geological formation.

Carbon and Contaminant Trace Metal Biogeochemistry in Surficial Organic-rich Terrestrial Systems

01 September 2011
David Blair was the runnner up for the Springer / Hemphill Best Oral presentation at SEGH 2011.

Cadmium (Cd) contamination of paddy fields in Mao Tao, Western Thailand

01 September 2011
Peerapat Kosolsaksakul is a 2nd year PhD student who was winner of the Springer / Hemphill Best Poster presentation at SEGH 2011.

Flux Based Management of a Groundwater Pollution: from Mass Flux Measurements to Regulatory Decisions

01 August 2011
Goedele Verrydt won the Springer / Hemphill Prize for Student Oral Presentation at SEGH 2011 in Ormskirk, UK.

Multiproxy climate reconstruction from raised bog deposits along the West Coast of the British Isles

01 August 2011
Anke Kuttner was Runner up for the Springer / Hemphill Prize for Student Poster presentation at SEGH 2011 in Ormskirk, UK.

Application of geochemical signatures of shale in environmental pollution and human health assessment in South East Nigeria

15 June 2011
Therese Ntonzi Nganje describes her experience through a Commonwealth Scholarship scheme on connecting Nigerian and UK scientists.

"Chernobyl: now open to tourists" - Risk communication or public engagement

15 June 2011
The Ukraine government is not only to lift restrictions on access to the restricted zone around the site of the Chernobyl nuclear reactor, but also plan for redevelopment and repopulation.

Soil: an important part of a healthy diet?

20 May 2011
Iodine is essential for healthy human life, and is taken up by crops from the soil. However, current research shows that the soil itself has an important part to play in determining how much iodine reaches our food.

Ecosystem services to alleviate micronutrient malnutrition in Sub Saharan Africa

20 May 2011
Ecosystem Services concepts have great potential for linking biogeochemistry, health and policy formulation for poverty alleviation.

Beyond mapping: new applications of GIS in environmental geochemistry and health

21 April 2011
GIS has been widely used to produce professional maps. However, the potential applications of GIS are far beyond mapping.

Journey from PhD student to employment: difficult but rewarding

21 April 2011
Dr Mark Button has a few words of comfort for students nearing the job market and searching for their future employment

Student led remediation study of Manitoban Gold mine

21 March 2011
Jill Maxwell was the joint winner of the Hemphill prize for best oral presentation at Galway SEGH 2010. She describes her work on the remediation of arsenic contamination by a natural wetland at New Britiannia Mine, Manitoba.

Nutrient export coefficients and the Northern Ireland Environment Agency river nitrate data

21 March 2011
Judith Watson was the joint winner of the Hemphill prize for best oral presentation at Galway SEGH 2010.
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Science in the News

Latest on-line papers from the SEGH journal: Environmental Geochemistry and Health

  • Lead sorption characteristics of various chicken bone part-derived chars 2018-01-18

    Abstract

    Recycling food waste for beneficial use is becoming increasingly important in resource-limited economy. In this study, waste chicken bones of different parts from restaurant industry were pyrolyzed at 600 °C and evaluated for char physicochemical properties and Pb sorption characteristics. Lead adsorption isotherms by different chicken bone chars were carried out with initial Pb concentration range of 1–1000 mg L−1 at pH 5. The Pb adsorption data were better described by the Langmuir model (R2 = 0.9289–0.9937; ARE = 22.7–29.3%) than the Freundlich model (R2 = 0.8684–0.9544; ARE = 35.4–72.0%). Among the chars derived from different chicken bone parts, the tibia bone char exhibited the highest maximum Pb adsorption capacity of 263 mg g−1 followed by the pelvis (222 mg g−1), ribs (208 mg g−1), clavicle (179 mg g−1), vertebrae (159 mg g−1), and humerus (135 mg g−1). The Pb adsorption capacities were significantly and positively correlated with the surface area, phosphate release amount, and total phosphorus content of chicken bone chars (r ≥ 0.9711). On the other hand, approximately 75–88% of the adsorbed Pb on the chicken bone chars was desorbable with 0.1 M HCl, indicating their recyclability for reuse. Results demonstrated that chicken bone char could be used as an effective adsorbent for Pb removal in wastewater.

  • Occurrence of pharmaceuticals and personal care products, and their associated environmental risks in a large shallow lake in north China 2018-01-13

    Abstract

    Eighteen selected pharmaceuticals and personal care products (PPCPs), consisting of five non-antibiotic pharmaceuticals (N-APs), four sulfonamides (SAs), four tetracyclines (TCs), four macrolides (MCs), and one quinolone (QN) were detected in water, pore water, and sediment samples from Baiyangdian Lake, China. A total of 31 water samples and 29 sediment samples were collected in March 2017. Caffeine was detected with 100% frequency in surface water, pore water, and sediment samples. Carbamazepine was detected with 100% frequency in surface water and sediment samples. Five N-APs were prominent, with mean concentrations of 4.90–266.24 ng/l in surface water and 5.07–14.73 μg/kg in sediment samples. Four MCs were prominent, with mean concentrations of 0.97–29.92 ng/l in pore water samples. The total concentrations of the different classes of PPCPs followed the order: N-APs (53.26%) > MCs (25.39) > SAs (10.06%) > TCs (7.64%) > QNs (3.64%) in surface water; N-APs (42.70%) > MCs (25.43%) > TCs (14.69%) > SAs (13.90%) > QNs (3.24%) in sediment samples, and MCs (42.12%) > N-APs (34.80%) > SAs (11.71%) > TCs (7.48%) > QNs (3.88%) in pore water samples. The geographical differences of PPCP concentrations were largely due to anthropogenic activities. Sewage discharged from Baoding City and human activities around Baiyangdian Lake were the main sources of PPCPs in the lake. An environmental risk assessment for the upper quartile concentration was undertaken using calculated risk quotients and indicated a low or medium-high risk from 18 PPCPs in Baiyangdian Lake and its five upstream rivers.

  • Association of soil potassium and sodium concentrations with spatial disparities of prevalence and mortality rates of hypertensive diseases in the USA 2018-01-12

    Abstract

    Crop available soil potassium is generally low and on the decline in the southeastern states of the USA because of the increasing crop and runoff removal and decreasing application of potassium fertilizer. Hypertension-related mortality rates are also high in the southeastern states and are on the rise. Among 41 elements analyzed from 4856 sites across all 48 states, potassium is identified as the only independent element whose soil concentration has significant association with spatial disparities of essential hypertension and hypertension-related mortality rates in the 48 states between 1999 and 2014. Essential hypertension and hypertension-related mortality rates of the 6 states with the lowest soil potassium concentration are about 50–26% higher than that of the 6 states with the highest soil potassium concentration in the 48 states (RR: 1.50, 1.26, low CI 95% 1.47, 1.25 and upper CI 95% 1.53, 1.27, respectively). Though sodium was not identified as an independent factor, an apparent significant inverse correlation exists between hypertension prevalence rates and soil sodium concentration in the 48 states (r = − 0.66, p = 0.00). There likely has been a decline of potassium in USA produces per unit weight over time and a likely association between this decline and increasing hypertension rate, particularly in the southeastern states. Hence, results of this study suggest the need of increasing potassium intakes for reducing hypertension-related mortality rates in the southeastern states. Results of this study also support further examination of potential benefits of sodium from mixture of non-chloride salts in natural produces.