Skip to main content
hyi
Banner
banner
bn

Monitoring, Photochemical Fate, and Oxidative Degradation by UV and Solar-based Catalytic Technologies of Cyanotoxins in Freshwater Estuaries

The increase of harmful algal blooms (HABs) in freshwater estuaries,   especially in the Great Lakes and Florida, is a source of growing   concern. The presence of high concentrations of harmful cyanotoxins   from HABs in drinking water supplies is a serious threat to human   and environmental health. One of the major challenges in assessing   the associated health risks is to better understand the   environmental/photochemical fate of these toxins. There is an urgent   need to develop and identify effective water treatment technologies   to eliminate cyanotoxins from drinking water. The overall objective   of this study is to develop an active collaboration to monitor,   determine the photochemical fate and evaluate potential   photochemical (UV, and solar based) treatment technologies for   cyanotoxins.    The proposed work will be accomplished through four main research   tasks: (1) monitoring of HAB and sampling in the Great Lakes; (2)   monitoring of HAB and studying photochemical effects, reaction   products and their toxicity along several locations of St. Johns   River in Florida; (3) performing fundamental studies on the   photochemical fate of microcystins, nodularin, and   cylindrospermopsin, including studies to identify reaction   intermediates and elucidate reaction pathways; and (4) synthesizing   and evaluating novel catalytic systems for the destruction of   cyanotoxins with solar light.    (algal bloom); (algal blooms); (HAB's); (HABs); (HAB); (harmful   algal bloom); (harmful algal blooms); (cyanobacteria); (blue-green   algae); (toxin); (toxins); (eutrophication); (drinking water);   (restrictions on drinking water); (human health); (UV light);   (ultraviolet light); (radiation); (solar light)

Status
In progress
Type
Project
Start Date
End Date
Researchers
Dionysios D. DionysiouPrincipal Investigator
Associated with 2 projects
Judy WestrickResearcher
Associated with 1 projects
Kevin O'SheaResearcher
Associated with 1 projects
Agencies
Environmental Protection Agency $ 679,589.00USDActual

Funding 21 projects for a total of $7,345,444.00
Scope of Study
Field Investigation
Laboratory Investigation
Scale of Phenomena
Biochemical
Landscape
Physical/Chemical
Impact of Pollutants
Radiation
Processes
Treatment / Manufacturing Processes
Lake Basin Connecting Channels
Lake Erie
Lake Huron
Lake Michigan
Lake Ontario
Lake St. Clair
Region Being Monitored
Near and OpenShore Waters
Tributary Mouth
Resource Being Monitored
Human Health
Plankton / Microorganisms
Societal/Surface Water
Beneficial Use Impairment Assessments
Eutrophication or Undesirable Algae
Restrictions on Drinking Water Consumption or Taste and Odour Problems
Annex Numbers
Remedial Action Plans and Lakewide Management Plans
Research & Development
Surveillance and Monitoring
Annex 17
Cause-effect inter-relationships of productivity and ecotoxicity
General
Monitoring
Annex
  • Annex Numbers
    Annex Numbers
    Remedial Action Plans and Lakewide Management Plans
    Research & Development
    Surveillance and Monitoring
  • Annex 17
    Annex 17
    Cause-effect inter-relationships of productivity and ecotoxicity

The Great Lakes - St. Lawrence Research Inventory is an
interactive, Internet-based, searchable database created as a tool to collect and disseminate
up-to-date information about research projects in the
Great Lakes - St. Lawrence Region.