4 results on '"Gemitzi, Alexandra"'
Search Results
2. A decision tree tool supporting the assessment of groundwater vulnerability
- Author
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Alessandro Gargini, Anna Żurek, Christine Stumpp, Maria Filippini, Przemysław Wachniew, Alexandra Gemitzi, Stanisław Witczak, Stumpp, Christine, Żurek, Anna J, Wachniew, Przemysław, Gargini, Alessandro, Gemitzi, Alexandra, Filippini, Maria, and Witczak, Stanisław
- Subjects
Water flow ,0208 environmental biotechnology ,Lag time ,Vulnerability ,Decision tree ,Soil Science ,02 engineering and technology ,010501 environmental sciences ,01 natural sciences ,Vulnerability assessment ,Environmental Chemistry ,Groundwater directive ,0105 earth and related environmental sciences ,Earth-Surface Processes ,Water Science and Technology ,Global and Planetary Change ,business.industry ,Environmental resource management ,Geology ,Pollution ,020801 environmental engineering ,Risk analysis (engineering) ,Water Framework Directive ,Groundwater management ,Scale (social sciences) ,Risk assessment ,business ,Groundwater - Abstract
The Water Framework Directive and Groundwater Directive aim at preserving and improving the groundwater status. Groundwater bodies are classified as being or not being at risk of failing to meet these objectives. Those at risk are subject to more precise risk assessment where the concept of vulnerability is considered in the pathway part of the source–pathway–receptor scheme. However, no further details on implementation strategies are provided. In order to support groundwater managers and decision-makers in implementation of programs protecting groundwater, a systematic operational approach based on a decision tree is proposed, which leads the user through the stages of vulnerability assessment. First, a problem has to be formulated related to a threatening of the quantitative and/or qualitative status of a groundwater body. Next, the stated problem needs to be related to the intrinsic or specific vulnerability. Methods used for the intrinsic vulnerability assessment belong to two categories: subjective rating and objective methods. Method selection depends primarily on: data availability, knowledge and available resources. A key issue is the lag time associated with transport between a source/event of contamination and the water body. This lag time is primarily controlled by the temporal scale of water flow. It provides information about flow processes and at the same time also about timescales required for the implementation of strategies. Effects of any measures taken cannot be observed immediately but at the earliest after these estimated lag times emphasizing the need to also proactively safeguard groundwater resources and preserve their good status.
- Published
- 2016
3. Toward operational methods for the assessment of intrinsic groundwater vulnerability: A review
- Author
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Christine Stumpp, Przemysław Wachniew, Maria Filippini, Alexandra Gemitzi, Stanisław Witczak, Alessandro Gargini, Jens Kværner, Jessica Meeks, Kazimierz Rozanski, Anna J. Zurek, Wachniew, Przemysław, Zurek, Anna J., Stumpp, Christine, Gemitzi, Alexandra, Gargini, Alessandro, Filippini, Maria, Rozanski, Kazimierz, Meeks, Jessica, Kværner, Jen, and Witczak, Stanislaw
- Subjects
Hydrogeology ,Environmental Engineering ,Intrinsic vulnerability ,Water flow ,0208 environmental biotechnology ,Environmental engineering ,Vulnerability ,02 engineering and technology ,intrinsic vulnerability ,Pollution ,6. Clean water ,020801 environmental engineering ,13. Climate action ,Vulnerability assessment ,Environmental science ,Groundwater resources ,Environmental planning ,Groundwater ,Waste Management and Disposal ,Groundwater vulnerability ,residence time ,Water Science and Technology - Abstract
Assessing the vulnerability of groundwater to adverse effects of human impacts is one of the most important problems in applied hydrogeology. At the same time, many of the widespread vulnerability assessment methods do not provide physically meaningful and operational indicators of vulnerability. Therefore, this review summarizes (i) different methods used for intrinsic vulnerability assessment and (ii) methods for different groundwater systems. It particularly focuses on (iii) timescale methods of water flow as an appropriate tool and (iv) provides a discussion on the challenges in applying these methods. The use of such physically meaningful indices based on timescales is indispensable for groundwater resources management.
- Published
- 2016
4. DOES GROUNDWATER PROTECTION IN EUROPE REQUIRE NEW EU-WIDE ENVIRONMENTAL QUALITY STANDARDS?
- Author
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Alessandro Gargini, Alexandra Gemitzi, Maria Filippini, Przemysław Wachniew, Bjørn Kløve, Matteo Balderacchi, Marco Petitta, Stanisław Witczak, Marco Trevisan, Balderacchi, Matteo, Filippini, Maria, Gemitzi, Alexandra, Klöve, Björn, Petitta, Marco, Trevisan, Marco, Wachniew, Przemysław, Witczak, Stanisław, and Gargini, Alessandro
- Subjects
annexi ,Conceptual Modelling ,0207 environmental engineering ,conceptual modeling ,annexii ,02 engineering and technology ,010501 environmental sciences ,01 natural sciences ,Natural (archaeology) ,groundwatermonitoring ,groundwater monitoring ,GWD ,lcsh:Chemistry ,Settore AGR/13 - CHIMICA AGRARIA ,Environmental protection ,nitrate ,annex I ,11. Sustainability ,OWC ,annex II ,020701 environmental engineering ,Environmental planning ,Environmental quality ,pesticide ,0105 earth and related environmental sciences ,2. Zero hunger ,Nitrates ,Land use ,business.industry ,Urban sprawl ,General Chemistry ,gwd ,nitrates ,owc ,15. Life on land ,Contamination ,Directive ,Hypothesis and Theory Article ,6. Clean water ,Chemistry ,lcsh:QD1-999 ,13. Climate action ,Agriculture ,Environmental science ,business ,Groundwater - Abstract
The European Groundwater Directive could be improved by limiting the scopes of the Annexes I and II to the manmade and natural substances, respectively, and by defining a common monitoring protocol. The changes in the European landuse patterns, in particular the urban sprawl phenomena, obscure the distinction between the point and diffuse sources of contamination. In the future more importance will be given to the household contamination. Moreover, the agricultural environment could be used for developing new conceptual models related to the pharmaceuticals.
- Published
- 2014
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