Kilder til BAM-forurening - Miljøstyrelsen

cides in the future. It is recommended that development projects are initiated
in order to establish the necessary knowledge and basis for further initiatives.
Such project may include:
- Further studies of the fate of BAM in soil and groundwater, e.g. detailed
studies to clarify if BAM is degraded in the groundwater and if the adsorption
of BAM is irreversible, both things important for the durability of
BAM. Also, studies focusing on the importance of different ways of transporting
BAM to the groundwater which is essential for the extent and durability
of BAM.
- Investigations focusing on a more precise mass balance of BAM for the
overall water balance.
- Evaluation of the consequences of the large number of leaky wells for
groundwater pollution with pesticides and the possible remediation techniques
towards BAM pollution, including the effect of using these remediation
techniques.
- Investigations and evaluation of the toxic effects of BAM for possible
acceptance of temporary elevated BAM-values in the groundwater above
the limit values.
Furthermore, there is a need for cooperation between counties and water supplies
in order to integrate further activities focusing on:
- Examination of the frequence of BAM contamination levels and spreading
of BAM regionally
- Monitoring of BAM contaminant sources
- Monitoring of the groundwater
- Reduction or possibly removal of the contaminant sources
- Reduction or possibly removal of unnecessary pathways of contamination
(e.g. leaky wells)
Finally, the results from the project indicate that BAM pollution will appear at
many waterworks sooner or later and therefore the water supply security will
be minimized. There is thus a great need for guidelines for the handling of future
pesticide pollutions, so that the waterworks can prepare themselves to
handle the eventual appearances of pollution in their supply wells by e.g. establishing
cooperations between several waterworks in order to solve the problems.
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