SEGH Articles

SEGH 2015 Conference Report

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

The Society for Environmental Geochemistry and Health (SEGH) in collaboration with The State Geological Institute of Dionýz Štúr, Bratislava and the project team of GEOHEALTH organised the 31st International SEGH Conference in Bratislava, June 22-26th 2015. The conference was organised under the auspices of Ministry of Environment of the Slovak Republic and supported by financial instrument Life+.

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

The main conference topic was the link between environment and health.

More than 80 contributions presented at SEGH 2015 as oral presentations or posters were specialized across the three main thematic groups:

1.         Effects of contamination of the geological environment on human health

2.         Effect of the deficit or excess of chemical elements in the geological environment on human health

3.         Linking of geochemical and medical data.

The first two topics have received global attention for decades. The third thematic group is relatively new. Investigating the influences of the geological environment on human health is a challenging task and linking geochemical and medical data could be an effective approach.

Topic 1 attracted the majority of speakers who presented their studies on aspects of contamination of the geological environment including water, soil, stream sediments, air, food-chain, and the urban environment. Keynote lectures were given by: Stanislav Rapant (opening lecture), Andrew Hursthouse (urban environment), Andy Cundy (contaminated sites and wastes) and Taicheng An (risk assessment and analytical procedures). Special afternoon session by Chinese delegates brought innovative views on the analytical methods and procedures used for risk assessment.

Topics 2 and 3 were opened by 3 keynote speakers. František Koíšek and Alex Stewart brought us an overview of current knowledge within the topic “Deficit and/or excess of chemicals in the geological environment and their health effects on humans”. Mark Cave approached this issue by linking geochemical and health data through the use of health deprivation indices.

This year a student prize was given to Daniela Zuzolo from Italy for her poster
"Assessment of th environmental conditions of the Calore river basin (South Italy): a stream sediment approach". Congratulations.

The scientific programme of SEGH 2015 was built up from highly diversified keynote, plenary and poster lectures from various fields of research on relationship between environment and health and brought us a various views on the issue of the impact of contaminated geological environment on human health.

All conference details, photos and book of abstracts are available downloading on the conference website www.geology.sk/geohealth/segh-conference-2015.

During SEGH 2015 board a transfer of the post of SEGH President happened. We would like to thank ex-president Andrew Hursthouse for his leading of SEGH as well as we wish success to Chaosheng Zhang as new SEGH president.

The scientific programme was accompanied by social events including sightseeing tour by historical city train through the main historical sights of Bratislava city and conference dinner with local music that took place in a very pleasant restaurant in Holiday Inn Bratislava. All delegates participated on these events have enjoyed these social events. 

The second part of the excursion was the visit of open-air mining museum in Banská Štiavnica – the most significant historical mining town in the Slovak Republic, innscribed in the UNESCO World Heritage list. Surface as well as undeground exhibition offered to delegates an overview of mediavel historical times of mining of silver and gold in this region.

A special visit of SEGH chairman´s summer cottage in beautiful mountainous area of Banská Štiavnica region was a top end of the day.

Finally, we would like to thank all delegates coming from over the 20 countries for their participation in SEGH 2015 and their support to us as organizers. We hope you have enjyoed Bratislava and you are warmly welcome to return to our country.

We hope we can all meet in Brussels for SEGH 2016. See www.segh.net for details.

 

by Katarína Fajčíková and Stanislav Rapant

(SEGH 2015 organisers)

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

  • Date palm waste biochars alter a soil respiration, microbial biomass carbon, and heavy metal mobility in contaminated mined soil 2017-04-19

    Abstract

    A 30-day incubation experiment was conducted using a heavy metal-contaminated mined soil amended with date palm feedstock (FS) and its derivative biochars (BCs) at three pyrolysis temperatures of 300 (BC-300), 500 (BC-500), and 700 °C (BC-700) with different application rates (0.0, 5, 15, and 30 g kg−1) to investigate their short-term effects on soil respiration (CO2–C efflux), microbial biomass carbon (MBC), soil organic carbon (SOC), mobile fraction of heavy metals (Cd, Cu, Pb, Zn, Mn, and Fe), pH, and electrical conductivity (EC). The results showed that FS and BC-300 with increasing addition rate significantly reduced soil pH, whereas SOC, CO2–C efflux, and soil MBC were increased compared to the control. On the contrary, BC-500 and BC-700 increased soil pH at early stage of incubation and have small or no effects on SOC, CO2–C efflux, and MBC. Based on the results, the date palm biochars exhibited much lower cumulative CO2–C efflux than feedstock, even with low-temperature biochar, indicating that BCs have C sequestration potential. Applying BC-700 at 15 and 30 g kg−1 significantly reduced cumulative CO2–C efflux by 21.8 and 45.4% compared to the control, respectively. The incorporation of FS into contaminated soil significantly increased the mobile content of Cd and Mn, but decreased the mobile content of Cu. However, BC-300 significantly reduced the mobile content of Cd, Cu, Pb, and Zn. It could be concluded that low-temperature biochar could be used as a soil amendment for reducing heavy metal mobility in mining contaminated soil in addition to minimize soil CO2–C efflux.

  • Historical record of anthropogenic polycyclic aromatic hydrocarbons in a lake sediment from the southern Tibetan Plateau 2017-04-17

    Abstract

    High-altitude lake sediments can be used as natural archives to reconstruct the history of pollutants. In this work, the temporal distribution of polycyclic aromatic hydrocarbons (PAHs) was determined in a sediment core collected from the southern Tibetan Plateau (TP), which was dated by using the 210Pb dating method and validated with the 137Cs fallout peak. The concentrations of the anthropogenic PAHs (Σ8PAH) in the sediment core ranged from 0.83 to 12 ng/g dw, and the fluxes of the Σ8PAH were in the range of 2.1–27 g/cm2/year. The temporal variations in the concentration and input flux of anthropogenic PAHs were low with little variability before the 1950s, and then gradually increased from the 1950s to the 1980s, and an accelerated increase was observed after the early 1980s. The content of total organic carbon played an insignificant role in affecting the time trends of PAHs in the sediment core. Diagnostic concentration fractions of PAH components indicate PAHs in the lake sediment of the southern TP which are mainly from biomass burning and/or from long-range atmospheric transport.

  • Determination of the potential implementation impact of 2016 ministry of environmental protection generic assessment criteria for potentially contaminated sites in China 2017-04-12

    Abstract

    The Ministry of Environmental Protection of China issued a 3rd draft edition of risk-based Generic Assessment Criteria (the MEP-GAC) in March 2016. Since these will be the first authoritative GAC in China, their implementation is likely to have a significant impact on China’s growing contaminated land management sector. This study aims to determine the potential implementation impact of the MEP-GAC through an in-depth analysis of the management context, land use scenarios, health criteria values adopted and exposure pathways considered. The MEP-GAC have been proposed for two broad categories of land use scenarios for contaminated land risk assessment, and these two categories of land use scenarios need to be further delved, and a MEP-GAC for Chinese cultivated land scenario ought to be developed, to ensure human health protection of Chinese farmers. The MEP-GAC have adopted 10−6 as the acceptable lifetime cancer risk, given the widespread extent and severe level of land contamination in China, consideration should be given to the decision on excess lifetime cancer risk of 10−5. During risk assessment process in practice, it is better to review the 20% TDI against local circumstances to determine their suitability before adopting it. The MEP-GAC are based on a SOM value of 1%, for regions with particularly high SOM, it might be necessary to develop regional GAC, due to SOM’s significant impact on the GAC developed. An authoritative risk assessment model developed based on HJ25.3-2014 would help facilitate the DQRA process in practice. The MEP-GAC could better reflect the likely exposures of China’s citizens due to vapour inhalation by using characteristics of Chinese exposure scenarios, including China-generic building stock, as inputs into the Johnson and Ettinger model as opposed to adoption of the US EPA parameters. The MEP-GAC once implemented will set the trajectory for the development of the investigation, assessment and remediation of land contamination for years.