en
Doctoral thesis
English

Interactions and mixture effects of nanoTiO2 and mercury to the green alga Chlamydomonas reinhardtii and the invertebrate Daphnia magna through direct and dietary exposure

ContributorsLi, Mengting
Defense date2021-03-16
Abstract

Significant concerns about environmental implications and safety of engineered nanoparticles (ENPs) have been raised in the recent years due to their enhanced physical and chemical properties. It is necessary to deepener the understanding on the interactions between ENPs, dissolved pollutants and aquatic organisms in complex environmental settings to decreased the uncertainties related with the cocktail effect and risk assessment. This doctoral work aimed to provide deeper insights into the interactions and effects of mixtures containing toxic metals and ENPs to phytoplankton, zooplankton, and the trophic transfer of pollutants from phytoplankton to zooplankton. To this end, the interactions in the binary or tertiary systems containing titanium dioxide nanoparticles (nanoTiO2) with three different primary sizes (5, 15 and 20 nm), inorganic Hg (IHg) and methyl Hg (CH3Hg+, MeHg) and an artificial two-step food chain consisting of green alga Chlamydomonas reinhardtii and invertebrate Daphnia magna were thoroughly explored.

eng
Keywords
  • NanoTiO2
  • Mercury
  • Methylmercury
  • Bioavailability
  • Cocktail effect
  • Mixtures
Funding
  • Autre - China Scholarship Council
  • Autre - Foundation Ernst and Lucie Schmidheiny
Citation (ISO format)
LI, Mengting. Interactions and mixture effects of nanoTiO2 and mercury to the green alga Chlamydomonas reinhardtii and the invertebrate Daphnia magna through direct and dietary exposure. 2021. doi: 10.13097/archive-ouverte/unige:154882
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Thesis
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Technical informations

Creation09/14/2021 11:00:00 AM
First validation09/14/2021 11:00:00 AM
Update time03/07/2024 11:20:41 AM
Status update03/07/2024 11:20:41 AM
Last indexation05/06/2024 8:06:12 AM
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