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Multidimensional risk analysis of antifouling biocides
1UFT - Centre for Environmental Research and Environmental Technology, University of Bremen, Leobener Strasse, POB 33 04 40, D-28334, Bremen, Germany. iranke@uni-bremen.de
Environmental Science and Pollution Research International
|November 15, 2008
Summary
This study evaluates the marine biosphere risks of antifouling biocides like tributyltin (TBT) and copper. A new 5-dimensional risk analysis method helps assess sustainability for informed purchasing and regulation.
Area of Science:
- Environmental Toxicology
- Marine Biology
- Ecotoxicology
Background:
- Antifouling biocides such as tributyltin (TBT), copper, Irgarol 1051, Sea-Nine 211, and zinc pyrithione are crucial for protecting sea-going ships from fouling.
- Concerns exist regarding the long-term sustainability and environmental impact of these biocides on the marine biosphere.
Purpose of the Study:
- To evaluate the ecotoxicological risks posed by commonly used antifouling biocides to the marine environment.
- To introduce a novel risk analysis framework for assessing the sustainability of antifouling biocide use.
Main Methods:
- A new 5-dimensional risk analysis method was developed, incorporating release rate, spatiotemporal range, bioaccumulation, bioactivity, and uncertainty.
- A scoring procedure for each dimension was briefly described to facilitate risk assessment.
Main Results:
- The study generated risk profiles for various antifouling biocides, highlighting distinct characteristics for each substance.
- The analysis identified areas where further data is needed for a comprehensive understanding of biocide risks.
Conclusions:
- The proposed risk analysis method provides valuable insights into the environmental impact of antifouling biocides.
- This method can serve as a decision support tool for integrated product development, informed purchasing, and regulatory actions.
