Publications by authors named "Hajime Kurita-Oyamada"
Trivalent chromium (Cr(III)) is a contaminant with toxic activity. Its presence in waters and soils is usually related to industrial activities such as tanneries. The aim of this study was to compare the removal of Cr(III) in hydroponic solutions and tannery effluents using two floating macrophytes: and .
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- The study evaluates the toxicity of a new type of dispersant made from silicon dioxide nanoparticles (NPs) that are modified with specific chemical compounds to improve their effectiveness.
- This new dispersant, called NP-PCL-POEGMA, is compared to a previously evaluated dispersant (NP-HPG) to observe improvements in protecting fish embryos from crude oil toxicity.
- Findings show that the NP-PCL-POEGMA samples were non-toxic to embryos and provided better protection against harmful effects than the previous dispersant, suggesting potential for safer alternatives to commercial products like Corexit.
Endocrine disrupting chemicals (EDCs) are found in every environmental medium and are chemically diverse. Their presence in water resources can negatively impact the health of both human and wildlife. Currently, there are no mandatory screening mandates or regulations for EDC levels in complex water samples globally.
View Article and Find Full Text PDFOil spill accidents are a major concern for aquatic organisms. In recent history, the Deepwater Horizon blowout spilled 500 million liters of crude oil into the Gulf of Mexico. Corexit 9500A was used to disperse the oil since it was the method approved at that time, despite safety concerns about its use.
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