SEGH Articles

SEGH International Conference, Guangzhou, China 2017

24 May 2018
The 33rd International conference of the Society for Environmental Geochemistry and Health (SEGH 2017) was successfully held in Guangzhou, China

 

SEGH 2017 Closing Ceremony

Delegates attend the Closing Ceremony of SEGH 2017 in Guangzhou, China

The 33rd international conference of the Society for Environmental Geochemistry and Health (SEGH 2017) was successfully held in Guangzhou, China between June 30th – July 4th, 2017. This conference was hosted by the Guangdong University of Technology and the Guangzhou Institute of Geochemistry, CAS, China. Approximately 550 abstracts were submitted and grouped into 27 sessions. More than 500 delegates came from 27 countries and regions. Three academics and four distinguished scientists from Europe, USA and China delivered plenary lectures. Seventy seven keynote speakers as well as 90 invited speakers were in attendance. In addition, 66 volunteers from local universities provided great service for this conference. Based on this exciting conference, a virtual special issue, including 20 full-length submitted papers on Ecotoxicology and Environmental Safety, was organized. Ten Best Poster Prizes were awarded by the conference with the support of the American Geophysical Union (AGU) and Elsevier publishers. A selection of photographs from the converence are provided below.

Dr. Chaosheng Zhang, delivers a welcome remark

Dr Chaosheng Zhang gives a welcome address to delegates

Prof. Taicheng An introduces SEGH 2017

Prof Taicheng An, Chair of SEGH 2017, intorduces the event and welcomes delegates

The president of Guangdong University of Technology

Prof Xin Chen, President of Guangdong University of Technology, gives a welcoming address

Prof. Shu Tao, Academic from the Chinese Academy of Sciences

Prof Shu Tao from the Chinese Academy of Sciences (CAS) delivers a plenary lecture

The plenary lecture of SEGH 2017

Delegates attend a plenary session

Delegates at SEGH 2017

Captivated delegates listening intently to a plenary lecture

Poster Prize Ceremony, SEGH 2017

Poster Prizes are presented. Many congratulations to: 

 
Yuling Wu, Xiamen University, China: Temporal Trends And Transport of Perfluorinated Compounds (PFCs) in A Subtropical Estuary: Jiulong River Estuary, China
 
Weijun Tian, Ocean University of China, China: Application of Cinder gel-beads/reeds Combination Strategy for Bioremediation of High Molecular Weight PAHs- Contaminated Estuarine Wetlands
 
Yuechang Wei, China University of Petroleum, Beijing, China: Novel Active Structure of Noble Metal-Oxides on 3DOM Oxides with Enhanced Catalytic Activity for Soot Oxidation
 
Honghong Wang, Guangzhou Institute of Geochemistry, CAS, China: Theoretical Investigation of Formaldehyde Adsorption on the Anatase TiO2 (101) Surface
 
Weigang Wang, Institute of Chemistry, CAS, China: Optical Properties of Secondary Organic Aerosols Derived From Long-Chain Alkanes under Various Nox and Seed Conditions
 
Yuanhong Zhong, Guangdong University of Technology, China: Facile Synthesis of Chromium Substituted Magnetite Nanorods with High Performance of Heterogeneous UVA-LED/Fenton Catalytic Activity
 
Wanbing Gong, Institute of Solid State Physics, CAS, China: H2-Hydrogenation/Transfer Hydrogenation of Bio-Derived Furfural using Sulfonate Group Modified (Cu, Ni) Catalysts
 
Haibo Yin, Division of Materials and Manufacturing Science Graduate School of Engineering, China: High-surface-area Plasmonic MoO3-x: Rational Synthesis and Enhanced Ammonia Borane Dehydrogenation Activity
 
Shang Chen, Central China Normal University, China: Promoted Surface Oxygen Vacancy Regeneration for Sustainable Molecular Oxygen Activation on BiOCl Facets via Phosphoric Acid Modification
 
Xiaoran Wei, Shandong University: The Effect of Silica Nanoparticles on Phospholipid Membrane Fluidity


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Science in the News

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

  • Geophagy among East African Chimpanzees: consumed soils provide protection from plant secondary compounds and bioavailable iron 2019-12-01

    Abstract

    Geophagy, the intentional consumption of earth materials, has been recorded in humans and other animals. It has been hypothesized that geophagy is an adaptive behavior, and that clay minerals commonly found in eaten soil can provide protection from toxins and/or supplement micronutrients. To test these hypotheses, we monitored chimpanzee geophagy using camera traps in four permanent sites at the Budongo Forest Reserve, Uganda, from October 2015–October 2016. We also collected plants, and soil chimpanzees were observed eating. We analyzed 10 plant and 45 soil samples to characterize geophagic behavior and geophagic soil and determine (1) whether micronutrients are available from the soil under physiological conditions and if iron is bioavailable, (2) the concentration of phenolic compounds in plants, and (3) if consumed soils are able to adsorb these phenolics. Chimpanzees ate soil and drank clay-infused water containing 1:1 and 2:1 clay minerals and > 30% sand. Under physiological conditions, the soils released calcium, iron, and magnesium. In vitro Caco-2 experiments found that five times more iron was bioavailable from three of four soil samples found at the base of trees. Plant samples contained approximately 60 μg/mg gallic acid equivalent. Soil from one site contained 10 times more 2:1 clay minerals, which were better at removing phenolics present in their diet. We suggest that geophagy may provide bioavailable iron and protection from phenolics, which have increased in plants over the last 20 years. In summary, geophagy within the Sonso community is multifunctional and may be an important self-medicative behavior.

  • Accumulation of uranium and heavy metals in the soil–plant system in Xiazhuang uranium ore field, Guangdong Province, China 2019-12-01

    Abstract

    Plants that have grown for many years in the special environmental conditions prevailing in mining areas are naturally screened and show strong capacity to adapt to their environment. The present study investigated the enrichment characteristics of U and other heavy metals (As, Cu, Pb, Mn, Mo, Zn, Cd, Co, and Ni) in the soil–plant system in Xiazhuang uranium mine. Four dominant plants (Castanopsis carlesii, Rhus chinensis, Liriodendron chinense, and Sapium discolor) and soil samples were collected from the mined areas, unmined areas, and background areas away from the ore field. U, As, Cu, Pb, Mn, Mo, Zn, Cd, Co, and Ni concentrations were analyzed by ICP-MS. The results demonstrate that (1) The highest concentrations of U (4.1–206.9 mg/kg) and Pb (43.3–126.0 mg/kg) with the geoaccumulation index (Igeo) greater than 1 show that they are the main soil pollutants in the research area. (2) The biological accumulation coefficient (LBAC) values for Cd, Mn, and Cu are greater than zero in S. discolor, L. chinense, and C. carlesii and these three plants indicate that they can be used for remediation of the soil in the ore field. (3) R. chinensis inhibits the accumulation of heavy metals and shows sensitive pigment responses to the accumulation of U in the leaves. L. chinense has the strongest enrichment effect on heavy metals but exhibits weak biochemical responses under U stress. C. carlesii demonstrates strong adaptation to U and can maintain healthy pigment characteristics in case of high U enrichment. (4) S. discolor, L. chinense, C. carlesii and R. chinensis have strong tolerance to U toxicity and different biochemical responses.

  • Distribution, sources and health risk assessment of contaminations in water of urban park: A case study in Northeast China 2019-12-01

    Abstract

    This case study was performed to determine whether the pollutants in water of urban park could bring health risk to human engaging in water-related activities such as swimming and provide evidence demonstrating the critical need for strengthened recreational water resources management of urban park. TN, NH4+-N, TP, Cu, Mn, Zn, Se, Pb, As, Cd and Cr(VI) contents were determined to describe the spatial distribution of contaminations; sources apportionment with the method of correlation analysis, factor analysis and cluster analysis were followed by health risk assessment for swimmers of different age groups. The results reveal that element contents in all sites do not exceed Chinese standard for swimming area and European Commission standard for surface water; all detected elements except Cr(VI) have a tendency to accumulate in the location of lake crossing bridge; Mn and Zn are considered to have the same pollution source including geogenic and anthropogenic sources by multivariable analysis. Carcinogenic risks of different age groups descend in the same order with non-carcinogenic risks. Among all elements, Zn and Mn contribute the lowest non-carcinogenic risk (5.1940E-06) and the highest non-carcinogenic risk (7.9921E-04) through skin contact pathway, respectively. The total average personal risk for swimmers in swimming area is 1.9693E-03, and this site is not suitable for swimming. Overall, it is possible that swimmers are exposed to risk via the dermal route when carrying out water-related activities, it is recommended that necessary precautions and management should be taken in other similar locations around the world.