2011 - Editorial: IAHS Publ. nº 342 - ISBN:978-1-907161-16-2- Pags 512
Autors de l'ICTA:
Katharine N. Farrell
Tots els autors':
Mario Schirmer, Katharine N. Farrell, Ken Lyon and James Amstrong.
7th International Groundwater Quality Conference held in Zurich, Switzerland, 13–18 June 2010.
In Europe and North America, industrial activity has led to special recognition of sites with mega-contamination (mega-sites), distinguished by the magnitude and chemical complexity of their contamination. They can become nearly intractable problems due to complex and intertwined influences of socio-economic, hydrogeological, biological and political elements. Mega-sites are, and will continue to be, part of the inherited environment in 21st century societies and their long-term management presents new challenges that we specifically address in this paper. We use lessons from the mega-site case study of Leuna, Germany, to develop new long-term strategies for situations where conventional remediation and management approaches may be untenable. These lessons highlight the risks associated with incomplete consideration of complex socio-ecological interactions that cannot easily be analysed or their influences predicted. Accordingly, we propose a broader risk management approach entailing iterative, adaptive assessments of both site based risks and environmental sustainability criteria. We then re-examine project planning approaches for potential mega-sites, proposing that they be expanded to include stakeholder involvement in the design of anticipative post-closure coping strategies. The underlying modelling challenge is to identify sufficient relevant problem factors to cover the broad scope of site characteristics without becoming ensnared in irresolvable detail.