Highlights selected by GreenFacts from the executive summary of a report by GESAMP (2010) of microplastics in the marine environment and of the JRC report (2011) on Technical Recommendations for the Implementation to marine litter of the Marine Strategy Framework Directive requirements (An update of the Highlight edition of Dec, 2010) 
In short: The question raised by the GESAMP is whether the micro-plastic could contribute to the bioaccumulation of toxic contaminants in marine life. Recent studies seem to reveal no increase in the concentration of these contaminants in areas of accumulation of plastic in the oceans and the solutions lie primarily in the management of waste on land and at sea.
Moreover, a technical subgroup under the Working Group on GES in relation to the Marine Strategy Framework Directive 2008/56/EC investigated the monitoring approaches for marine litter and provides a set of monitoring tools which can be employed for that purpose.
1. The report on th GESAMP symposium
1.1. evaluation of the environmental impact of plastic litter and micro-plastics
It is well documented that plastic litter causes physical harm to marine mammals, fish and invertebrates and instances of death by entanglement, asphyxiation or blockage of organs are common. It is also known that plastic particles tend to accumulate persistent, bioaccumulating and toxic contaminants such as PCBs, DDT and PBDEs. One of the greatest uncertainties is whether this leads to the bioaccumulation of the contaminant load (absorbed and plastic additives), and hence whether micro-plastics represent an additional and significant vector for transferring pollutants.









