Event Title

Effects of ionic composition of freshwater on silver nanoparticle sedimentation rates

Co-Author(s)

Claire Walli

Research Mentor(s)

Ruth Sofield

Description

My project investigates how rates of AgNP sedimentation respond to the presence of individual freshwater ions and their combined effects on the mortality rates of Daphnia magna. Claire Walli is researching how the toxicity of AgNPs to Daphnia magna changes in the presence of specific freshwater ions. Working with Claire Walli, I have gathered data on the sedimentation rates and toxicity of AgNPs to D. magna in different freshwater media. Ultimately, these data will be used to generate an EC50 that will inform a Time--To-Death toxicity test. This test investigates how the rates of AgNP sedimentation out of the water column relate to the rates of D. magna mortality.

Document Type

Event

Start Date

May 2018

End Date

May 2018

Department

Environmental Sciences

Rights

Copying of this document in whole or in part is allowable only for scholarly purposes. It is understood, however, that any copying or publication of this document for commercial purposes, or for financial gain, shall not be allowed without the author’s written permission.

Language

English

Format

application/pdf

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May 17th, 9:00 AM May 17th, 12:00 PM

Effects of ionic composition of freshwater on silver nanoparticle sedimentation rates

My project investigates how rates of AgNP sedimentation respond to the presence of individual freshwater ions and their combined effects on the mortality rates of Daphnia magna. Claire Walli is researching how the toxicity of AgNPs to Daphnia magna changes in the presence of specific freshwater ions. Working with Claire Walli, I have gathered data on the sedimentation rates and toxicity of AgNPs to D. magna in different freshwater media. Ultimately, these data will be used to generate an EC50 that will inform a Time--To-Death toxicity test. This test investigates how the rates of AgNP sedimentation out of the water column relate to the rates of D. magna mortality.