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  • Sediment Management Assessment Design and Remediation Geosyntec applies reliable and innovative approaches to the investigation, evaluation, and remediation of sediment sites to manage the performance, financial, and human health/ecological risk. Geosyntec practitioners possess the experience and technical skills to conceptualize and implement all aspects of sediment assessment and remediation programs. We specialize in the assessment and remediation of sites where sediments have been impacted by a wide range of contaminants including metals, crude oil and refined petroleum compounds, polynuclear aromatic hydrocarbons, pesticides, and PCBs. Our conservation, remediation, and restoration experience includes sites ranging from small, intermittant flow streams to large man-made and natural lakes, as well as complex river, estuary, and harbor systems. Our multidisciplinary approach brings together nationally-recognized in-house specialists in engineering, ecology and biological sciences, risk assessment and applied toxicology, and earth sciences to address the complex issues associated with contaminated sediment management. In sediment remediation sites, our geotechnical expertise has allowed us to creatively solve challenging sediment consolidation and capping scenarios meeting regulatory requirements and exceeding project goals.
  • BP Wildlife Disaster-Toxicologist William Sawyer on hazards of dispersants Toxicologist Dr. WIlliam Sawer tells WVUE Fox 8 News about the dangers of chemical dispersants, which, when mixed with oil, release PAH's (polynuclear aromatic hydrocarbons) that are known to bioaccumulate in sea creatures, such as blue crab larvae.
  • Al30 (two keggins) this is a fully protonated Al30 (+18) aluminum oxide polynuclear ion with nine sulfate counterions. Red atoms are oxygen, white are protons, lavender is Al3+ and green is sulfur 6+. Solvating water molecules are shown with sticks. The MD potential allows dissociation of water molecules (same oxygens used for the molecule and solution).
  • Managing the Risk of Break-Out a Poly-Nuclear Prof. Thomas Schelling, Prof. Hitoshi Tanaka, Prof. Paul Bracken,Dr. Bruno Tertrais, Itzhak Ben-Israel on Managing the Risk of Break-Out: A Poly-Nuclear Middle East and Global Proliferation