SEGH Articles

29th International Conference on Environmental Geochemistry and Health - Report from Toulouse

08 September 2013


The 29
th International Conference on Environmental Geochemistry and Health was held in Toulouse from July 8th to 12th 2013. More than 160 scientists from 36 countries attended the conference and presented their work to their colleagues. Moreover more than 90 new SEGH members were made during the week. Prestigious keynote speakers such as J. Nriagu, M. Cave, A. Kappler and R. Mason contributed to the high level of the conference, most of them participating actively in our three special sessions dedicated to arsenic in the Environment, mercury biogeochemistry and metal bioaccessibility. Springer and the SEGH awarded several students for their outstanding oral and poster presentation. Follow them soon on the SEGH website to (re-) discover their work!


The social events like the icebreaker, the typical South West banquet diner, the student off events and two exciting excursions in the Pyrénées Mountains completed the French tableau for a full experience and a successful conference.

We would like to thank once again all the wonderful people who helped us realising this conference as well as the delegates whom travelled from all around the world to share with us their new discoveries.

"Follow the Toulouse SEGH members on their facebook page:  https://www.facebook.com/PastEnvironmentToulouse

See you in 2014 in Newcastle!

Picture 1: Listening to keynote J. Nriagu’s keynote on the Green Revolution

Picture 2: enjoying an animated outdoor poster session

Picture 3: The conference diner: foie gras and jazz !

 By F. De Vleeschouwer

Photos by N. Markovic

 

 

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

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    Abstract

    Diesel engine railway traffic causes atmosphere pollution due to the exhaust emission which may be harmful to the passengers as well as workers. In this study, the air quality and PM10 concentrations were evaluated around a railway station in Northeast India where trains are operated with diesel engines. The gaseous pollutant (e.g. SO2, NO2, and NH3) was collected and measured by using ultraviolet–visible spectroscopy. The advanced level characterizations of the PM10 samples were carried out by using ion chromatography, Fourier-transform infrared, X-ray diffraction, inductively coupled plasma optical emission spectrometry , X-ray photoelectron spectroscopy, field-emission scanning electron microscopy with energy-dispersive spectroscopy, and high-resolution transmission electron microscopy with energy-dispersive spectroscopy techniques to know their possible environmental contaminants. High-performance liquid chromatography technique was used to determine the concentration of polycyclic aromatic hydrocarbons to estimate the possible atmospheric pollution level caused by the rail traffic in the enclosure. The average PM10 concentration was found to be 262.11 µg m−3 (maximum 24 hour) which indicates poor air quality (AQI category) around the rail traffic. The statistical and air mass trajectory analysis was also done to know their mutual correlation and source apportionment. This study will modify traditional studies where only models are used to simulate the origins.

  • The geochemistry of geophagic material consumed in Onangama Village, Northern Namibia: a potential health hazard for pregnant women in the area 2019-02-18

    Abstract

    Ingestion of geophagic materials might affect human health and induce diseases by different ways. The purpose of this study is to determine the geochemical composition of geophagic material consumed especially by pregnant women in Onangama Village, Northern Namibia and to assess its possible health effects. X-ray fluorescence and inductively coupled plasma mass spectrometry were used in order to determine the major, and trace elements as well as anions concentrations of the consumed material. The geochemical analysis revealed high concentrations of aluminium (Al), calcium (Ca), iron (Fe), magnesium (Mg), manganese (Mn), potassium (K), sodium (Na), and silica (Si); and trace elements including arsenic (As), chromium (Cr), mercury (Hg), nickel (Ni) and vanadium (V) as well as sulphate (SO42−), nitrate (NO3), and nitrite (NO2) anions comparing to the recommended daily allowance for pregnant women. The pH for some of the studied samples is alkaline, which might increase the gastrointestinal tract pH (pH < 2) and cause a decrease in the bioavailability of elements. The calculated health risk index (HRI > 1) revealed that Al and Mn might be a potential risk for human consumption. Based on the results obtained from the geochemical analysis, the consumption of the studied material might present a potential health risk to pregnant women including concomitant detrimental maternal and foetal effects.