Home
Working Groups
Contracting 2007
Working plan
Working stages
Performance criteria
|
|
|
Workgroup: Behavior of persistent contaminants
|
|
The development of an environmental data base is the major task of this working group. The data base is being established on the
basis of collected information and estimates concerning, release transport/migration sorption/desorption mechanisms, kinetics,
degradation of persistent contaminants in environmental compartments (water, soil, sediments) within the project.
These data will be obtained by a variety of methods, including:
- direct sampling and measurement of environmental parameters
- laboratory studies to assess the release, fate, transport and behaviour of various pollutants (especially persistent in
the environment, such as: persistent organic pollutants-POPs, heavy metals, dyes, personal care compounds)
- extensive literature reviews
- mathematical modeling
The information will applied in non-steady state multi-compartmental mass balance models, as well as in the development of
stochastic and/or empirical models.
|
|
|
Workgroup: Risk assessment associated with impacts induced in the
environment by persistent pollutants
|
|
The information obtained from the Behaviour of persistent contaminants working group of the project, as well as information available
from the previous experience of the research group, will be applied for risk assessment, based on the impacts estimated to be induced
in the environment by the presence of the studied persistent contaminants, considering their behaviour, transport, maximum available
concentrations.
Some major aspects related to the fate and risk of PCs will be analyzed using models which should include:
- seasonal cycling
- environmental gradients
- soil-water interactions
- long-term changes
These models will be developed based on the data on the environmental parameters which influence the fate of PCs, such as climatological
parameters (temperatures, precipitation etc.), water characteristics (e.g. concentration of suspended solids,), and soil and sediment
properties (mean depth, organic carbon content). These data are used to obtain realistic environmental input values for the model
validation and calculations. The model results will be verified through the comparison with measurement data available from the
environmental data base of the project. The data base will contain information on:
- specific concentrations of PCs
- sample matrix
- site
- date
- descriptors about data quality
- information on detection limits, and missing data
- origin and reference of the cited data
|
|
|
Workgroup: Risk management and environmental remediation
|
|
The information gathered by the working group that works on Risks assessment associated with impacts induced in the environment
by persistent pollutants will be used for elaboration of some management instruments and methods for reduction of the risk induced
by the presence of the investigated persistent pollutants as well as for conceiving new alternative for remediation or
development/modernization/improvement/ combination of those currently applied.
The assessment of the risk levels will be achieved applying existent methods but also an original methodology. In order to evaluate
the remediation alternatives, the efficiency of some physical and chemical or biological methods (bioremediation) at laboratory or
bench-scale will be studied such as to be possible the recommendation of the most properly method for reduction or removal for each
type of the investigated pollutants or each matrix (soil, water, sediments).
For each methods will be studied:
- factors of influence
- process kinetics
- models that describes the process
- the possibility to combine the processes (traditional and bioremediation) for achieving the optimum efficiencies
The final task of the project is the elaboration of the project recommendations with focus on exposure and ecological
risk assessment for PCs in the environment.
|
|
BluePink 
