• SEGH

    Diverse scientific fields and multidisciplinary expertise brought together within an international community.

  • SEGH

    Diverse scientific fields and multidisciplinary expertise brought together within an international community

  • SEGH

    Diverse scientific fields and multidisciplinary expertise brought together within an international community.

  • SEGH

    Diverse scientific fields and multidisciplinary expertise brought together within an international community.

  • SEGH

    Diverse scientific fields and multidisciplinary expertise brought together within an international community.

  • SEGH

    Diverse scientific fields and multidisciplinary expertise brought together within an international community.

  • SEGH

    Diverse scientific fields and multidisciplinary expertise brought together within an international community.

  • SEGH

    Diverse scientific fields and multidisciplinary expertise brought together within an international community.

  • SEGH

    Geochemistry for Sustainable Development SEGH 2018 Vic Falls Zambia

  • SEGH

    Diverse scientific fields and multidisciplinary expertise brought together within an international community.

  • SEGH

    SEGH 2018 VicFalls Zambia

Society for Environmental Geochemistry and Health

SEGH was established in 1971 to provide a forum for scientists from various disciplines to work together in understanding the interaction between the geochemical environment and the health of plants, animals, and humans. We recognise the importance of interdisciplinary research. SEGH members represent expertise in a diverse range of scientific fields, such as biology, engineering, geology, hydrology, epidemiology, chemistry, medicine, nutrition, and toxicology.

 

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SEGH Articles

Enhancing Nutrient Use Efficiency: The Role of Specialty Fertilizers

| March 2018

The International Fertilizer Association (IFA) held its Task Force and Strategic Forum Meeting in Zurich, Switzerland on Nov 13-15, 2017. The purpose of the meeting was to discuss and prepare the Fertilizer Industry for the challenges foreseen by 2030 along with a special focus on Enhancing Nutrient Use Efficiency: The Role of Specialty Fertilizers. Dr Munir Zia provides SEGH readers with a brief overview of this topic.   continue reading...

Geochemistry for Sustainable development: Victoria Falls, Zambia

| March 2018

Abstracts are now due for 9th March if you would like to be considered for an oral presentation. Please do hurry and submit your abstracts.   continue reading...

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

| 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.   continue reading...

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Science in the News

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

  • Improving arsenopyrite oxidation rate laws: implications for arsenic mobilization during aquifer storage and recovery (ASR) 2018-04-25

    Abstract

    Aquifer storage and recovery (ASR) and aquifer recharge (AR) provide technical solutions to address water supply deficits and growing future water demands. Unfortunately, the mobilization of naturally present arsenic due to ASR/AR operations has undermined its application on a larger scale. Predicting arsenic mobility in the subsurface during ASR/AR is further complicated by site-specific factors, including the arsenic mobilization mechanisms, groundwater flow conditions, and multi-phase geochemical interactions. In order to ensure safe and sustainable ASR/AR operation, a better understanding of these factors is needed. The current study thus aims to better characterize and model arsenic remobilization at ASR/AR sites by compiling and analyzing available kinetic data on arsenic mobilization from arsenopyrite under different aqueous conditions. More robust and widely applicable rate laws are developed for geochemical conditions relevant to ASR/AR. Sensitivity analysis of these new rate laws gives further insight into the controlling geochemical factors for arsenic mobilization. When improved rate laws are incorporated as the inputs for reactive transport modeling, arsenic mobilization in ASR/AR operations can be predicted with an improved accuracy. The outcomes will be used to guide groundwater monitoring and specify ASR/AR operational parameters, including water pretreatment requirements prior to injection.

  • Heavy metal exposure has adverse effects on the growth and development of preschool children 2018-04-25

    Abstract

    The purpose of this study was to investigate the associations between levels of lead (Pb), cadmium (Cd), chromium (Cr), and manganese (Mn) in the PM2.5 and blood and physical growth, and development parameters including birth length and weight, height, weight, body mass index (BMI), head circumference, and chest circumference in preschool children from Guiyu (e-waste exposure area) and Haojiang (the reference area). A total of 470 preschool children from Guiyu and Haojiang located in southeast coast of China were recruited and required to undergo physical examination and blood tests during the study period. Birth length and weight were obtained by birth records and questionnaire. Pb and Cd in both PM2.5 and blood were significantly higher in Guiyu than Haojiang. Remarkably, the children of Guiyu had significantly lower birth weight and length, BMI, and chest circumference when compare to their peers from the reference area (all p value < 0.05). Spearman correlation analyses showed that blood Pb was negatively correlated with height (r = −0.130, p < 0.001), weight (r = −0.169, p < 0.001), BMI (r = −0.100, p < 0.05), head circumference (r = −0.095, p < 0.05), and chest circumference (r = −0.112, p < 0.05). After adjustment for the potential confounders in further linear regression analyses, blood Pb was negatively associated with height (β = −0.066, p < 0.05), weight (β = −0.119, p < 0.001), head circumference (β = −0.123, p < 0.01), and chest circumference (β = −0.104, p < 0.05), respectively. No significant association between blood Cd, Cr, or Mn was found with any of our developmental outcomes. Taken together, lead exposure limits or delays the growth and development of preschool children.

  • Contamination characteristics of trace metals in dust from different levels of roads of a heavily air-polluted city in north China 2018-04-24

    Abstract

    Concentrations of eight trace metals (TMs) in road dust (RD) (particles < 25 μm) from urban areas of Xinxiang, China, were determined by inductively coupled plasma mass spectrometry. The geometric mean concentrations of Zn, Mn, Pb, As, Cu, Cr, Ni and Cd were 489, 350, 114, 101, 60.0, 39.7, 31.6, and 5.1 mg kg−1, respectively. When compared with TM levels in background soil, the samples generally display elevated TM concentrations, except for Cr and Mn, and for Cd the enrichment value was 69.6. Spatial variations indicated TMs in RD from park path would have similar sources with main roads, collector streets and bypasses. Average daily exposure doses of the studied TMs were about three orders of magnitude higher for hand-to-mouth ingestion than dermal contact, and the exposure doses for children were 9.33 times higher than that for adults. The decreasing trend of calculated hazard indexes (HI) for the eight elements was As > Pb > Cr > Mn > Cd > Zn > Ni > Cu for both children and adults.