Effect of Iodine on Mercury Concentrations in Dental-unit Wastewater

Dental amalgam is a mixture of mercury, silver, tin, and copper. Mercury typically makes up about 50% of it. The amalgam is used to provide the dental patient with a strong durable filling. Some of the dental amalgam may end up in the dental wastewater along with the water used for rinsing. Iodine is often used to control bacteria in dental-unit fresh waterlines. Could Iodine effect mercury concentrations in the wastewater?ISTC partnered with researchers at the Naval Institute for Dental and Biomedical Research to answer that question. Full results appear in Stone, Mark E., et al (2006). "Effect of Iodine on Mercury Concentrations in Dental-unit Wastewater." Dental Materials 22(2), 119-124. https://doi.org/10.1016/j.dental.2005.04.009.Ope

Arsenic Speciation in Arsenic-Rich Brazilian Soils from Gold Mining Sites under Anaerobic Incubation

Arsenic enters the environment naturally though rock weathering but its concentrations can be dramatically increased by human activity such as mining. ISTC’s senior chemist, John Scott, and collaborators from the Federal University of Viçosa (Brazil), Illinois State Geological Survey, and the University of Illinois at Urbana-Champaign teamed up to find the arsenic release pathways in arsenic rich soils at gold mining sites in Brazil. Full research results available in de Mello, J.W.V., Talbott, J.L., Scott, J. et al. (2007). "Arsenic speciation in arsenic-rich Brazilian soils from gold mining sites under anaerobic incubation." Environmental Science and Pollution Research - International 14(6), 388-396. https://doi.org/10.1065/espr2006.08.330Ope

ARSENIC REMOVAL IN WATER TREATMENT FACILITIES: SURVEY OF GEOCHEMICAL FACTORS AND PILOT PLANT EXPERIMENTS

Midwest Technology Assistance Center for Small Community Water Supplies (MTAC)Ope

Apolipoprotein E epsilon 4 (APOE-ε4) genotype is associated with decreased 6-month verbal memory performance after mild traumatic brain injury

Introduction: The apolipoprotein E (APOE) ε4 allele associates with memory impairment in neurodegenerative diseases. Its association with memory after mild traumatic brain injury (mTBI) is unclear. Methods: mTBI patients (Glasgow Coma Scale score 13–15, no neurosurgical intervention, extracranial Abbreviated Injury Scale score ≤1) aged ≥18 years with APOE genotyping results were extracted from the Transforming Research and Clinical Knowledge in Traumatic Brain Injury Pilot (TRACK-TBI Pilot) study. Cohorts determined by APOE-ε4(+/−) were assessed for associations with 6-month verbal memory, measured by California Verbal Learning Test, Second Edition (CVLT-II) subscales: Immediate Recall Trials 1–5 (IRT), Short-Delay Free Recall (SDFR), Short-Delay Cued Recall (SDCR), Long-Delay F

Arsenic Geochemistry and Distribution in the Mahomet Aquifer, Illinois

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