C. Jakobsson 5/2003
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D. CONCLUSION
•At least 30-40% of rivers and lakes show eutrophication symptoms or bring high nitrogen fluxes to coastal waters and seas. The agricultural origin is 50 - 80% of total N inputs to EU waters, depending on Member States, watersheds and annual variations;
•All M. S. have now transposed the directive, set up a comprehensive monitoring network, established a code of good practice, and designated at least partially their vulnerable zones (except Ireland);
•A CAP more oriented towards quality rather than quantity, encouraging extensive cropping or breeding, “buffer” natural areas and accurate balanced fertilisation, can further contribute to these purposes;
•Cost-efficiency studies on preventive measures should also be encouraged, in order to focus action programmes and practice changes towards the most efficient one;