SEGH Articles

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.

We cordially invite SEGH members and new friends to join the SEGH 2018 conference next to Victoria Falls in Livingstone, Zambia. Please view the conference website for details https://segh2018.org/ .

These are exciting times for African development across many sectors, including rapid technological advancement in I.T. and communications, Agriculture, Public Health, Mining and infrastructure development, alongside rapid urbanisation.  The scientific fields represented by SEGH are presented with challenges/opportunities to provide scientific information to the general public, government, industry and donor stakeholders.  The 34th SEGH International Conference is therefore organised around four themes under the banner of ‘Geochemistry for Sustainable Development’:

Theme 1. Industrial and Urban Development

Theme 2. Agriculture

Theme 3. Health

Theme 4. Technologies

More information around these themes can be found on the conference webpage.

You will find additional information about the conference venue, location, how to get to Livingstone, surrounding town and opportunities for experiencing the natural wonder of Victoria Falls.  In addition, we have posted some information on suggestions for local accommodation for a range of budgets to which we will keep you updated as we confirm discounts with local accommodation via: https://segh2018.org/, twitter on @SocEGH, @segh2018, www.segh.net updates and member emails.  On the conference website you will find information for registration and submission of abstracts.  Delegate payments will be handled in two ways.  Zambian nationals and sponsors to pay via the Zambian online shop, international delegates and sponsors to pay via the International online shop which will connect to the SEGH secure payment function using SagePay. Bank transfers can be made on request.

Sponsors and exhibitors are very welcome to support the conference and enrich the meeting by showcasing their capabilities.  This conference presents a unique opportunity to reach a number of delegates from across the world and African region, spanning multi-disciplinary science as shown by the themes, drawn from academia, government agencies, NGOs and industry.

We have formulated a comprehensive social programme including the ice-breaker-registration, two poster evenings, each with drinks, food and music and the conference dinner (Boma) which will be held on the banks of the Zambezi in site of the edge of Victoria Falls. A braai (barbecue) will be provided at the Boma along with entertainment including traditional dancing and music. With support from sponsors, we aim to keep these costs within the registration fee.  See https://segh2018.org/

July 3-5th will comprise of conference presentations, whilst the 6th July will be offered to delegates as a free training day.  Details are shown on the conference website, please feel free to suggest other ideas or volunteer to run small working groups. On the 7th July will be a field trip to visit an African cultural centre, Agricultural research station and finish with a sunset cruise on the Zambezi.  We just ask for a contribution to the lunch on the fieldtrip and payment for the cruise, which includes a buffet and drinks.

Registrations are now open. We look forward to seeing you beside the Victoria Falls known as Mosi-Oa-Tunya, in Livingstone, Zambia.

By Michael Watts, Moola Mutondo, Kenneth Maseka and Godfrey Sakala

Chair of organising committee

Prof. Kenneth Maseka, Copperbelt University

Organising committee

Dr Michael Watts, British Geological Survey

Dr Moola Mutondo, Copperbelt University

Dr Godfrey Sakala, Zambia Agriculture Research Institute


 

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

  • Earthworms and vermicompost: an eco-friendly approach for repaying nature’s debt 2020-01-23

    Abstract

    The steady increase in the world’s population has intensified the need for crop productivity, but the majority of the agricultural practices are associated with adverse effects on the environment. Such undesired environmental outcomes may be mitigated by utilizing biological agents as part of farming practice. The present review article summarizes the analyses of the current status of global agriculture and soil scenarios; a description of the role of earthworms and their products as better biofertilizer; and suggestions for the rejuvenation of such technology despite significant lapses and gaps in research and extension programs. By maintaining a close collaboration with farmers, we have recognized a shift in their attitude and renewed optimism toward nature-based green technology. Based on these relations, it is inferred that the application of earthworm-mediated vermitechnology increases sustainable development by strengthening the underlying economic, social and ecological framework.

    Graphic abstract

  • Plasticizers and bisphenol A in Adyar and Cooum riverine sediments, India: occurrences, sources and risk assessment 2020-01-23

    Abstract

    Adyar and Cooum, the two rivers intersecting Chennai city, are exposed to serious pollution due to the release of large quantities of dumped waste, untreated wastewater and sewage. Sediments can act as repository for emerging organic contaminants. Hence, we have monitored the occurrence and risk associated with plasticizers [six phthalic acid esters (PAEs), bis(2-ethyl hexyl adipate) (DEHA)] and bisphenol A (BPA) in surface riverine sediments of Adyar and Cooum rivers from residential/commercial, industrial and electronic waste recycling sites. Σ7plasticizers (PAEs + DEHA) in the Adyar riverine sediment (ARS) and Cooum riverine sediment (CRS) varied between 51.82–1796 and 28.13–856 ng/g, respectively. More than three-fourth of Σ7plasticizers came from bis(2-ethylhexyl) phthalate (DEHP), in accordance with the high production and usage of this compound. BPA varied between 10.70–2026 and 7.58–1398 ng/g in ARS and CRS, respectively. Average concentrations of plasticizers and BPA were four times higher in electronic waste (e-waste) recycling sites when compared with industrial and residential/commercial sites. BPA and DEHP showed a strong and significant correlation (R2 = 0.7; p < 0.01) in the e-waste sites thereby indicating common source types. Sites present at close proximity to raw sewage pumping stations contributed to 70% of the total BPA observed in this study. For the derived pore water concentration of plasticizers and BPA, the ecotoxicological risk has been found to be higher in ARS over CRS. However, sediment concentrations in all the sites of ARS and CRS were much below the recommended serious risk concentration for human (SRChuman) and serious risk concentration for ecotoxicological (SRCeco).

  • Distribution of metal(loid)s in particle size fraction in urban soil and street dust: influence of population density 2020-01-18

    Abstract

    Assessment of street dust is an invaluable approach for monitoring atmospheric pollution. Little information is available on the size distribution of contaminants in street dusts and urban soils, and it is not known how the population density would influence them. This research was carried out to assess the size distribution of trace metal(loid)s in street dust and urban soil, and to understand how population density might influence the size-resolved concentration of metal(loid)s. Three urban areas with a high, medium and low population density and a natural area were selected and urban soil and street dust sampled. They were fractionated into 8 size fractions: 2000–850, 850–180, 180–106, 106–50, 50–20, 20–10, 10–2, and < 2 µm. The concentration of Pb, Zn, Cu, Cd, Cr, Ni, As, and Fe was determined, and enrichment factor and grain size fraction loadings were computed. The results indicated that the concentration of Pb, Zn, Cu, Cd, and Cr was highly size dependent, particularly for particles < 100 µm, especially for street dust. Low concentrations of Ni and As in street dust and urban soil were size and population density independent. Higher size dependency of the metals concentration and the higher degree of elemental enrichment in the street dust fractions than the urban soils indicate higher contribution of human-induced pollution to the dust. Findings also confirm the inevitability of size fractionation when soils or dusts are environmentally assessed, particularly in moderately to highly polluted areas. Otherwise, higher concentrations of certain pollutants in fine-sized particles might be overlooked leading to inappropriate decisions for environmental remediation.