| Title | Tailoring groundwater quality monitoring to vulnerability: a GIS procedure for network design |
| Abstract | Monitoring networks aiming to assess the
state of groundwater quality and detect or predict
changes could increase in efficiency when fitted to
vulnerability and pollution risk assessment. The main
purpose of this paper is to describe a methodology
aiming at integrating aquifers vulnerability and actual
levels of groundwater pollution in the monitoring network
design. In this study carried out in a pilot area in
central Italy, several factors such as hydrogeological
setting, groundwater vulnerability, and natural and
anthropogenic contamination levels were analyzed
and used in designing a network tailored to the monitoring
objectives, namely, surveying the evolution of
groundwater quality relating to natural conditions as
well as to polluting processes active in the area. Due to
the absence of an aquifer vulnerability map for the
whole area, a proxi evaluation of it was performed
through a geographic information system (GIS) methodology,
leading to the so called "susceptibility to
groundwater quality degradation". The latter was used
as a basis for the network density assessment, while
water points were ranked by several factors including
discharge, actual contamination levels, maintenance conditions, and accessibility for periodical sampling
in order to select the most appropriate to the network.
Two different GIS procedures were implemented
which combine vulnerability conditions and water
points suitability, producing two slightly different networks
of 50 monitoring points selected out of the 121
candidate wells and springs. The results are compared
with a "manual" selection of the points. The applied
GIS procedures resulted capable to select the
requested number of water points from the initial set,
evaluating the most confident ones and an appropriate
density. Moreover, it is worth underlining that the
second procedure (point distance analysis [PDA]) is
technically faster and simpler to be performed than the
first one (GRID+PDA). |
| Source | Environmental monitoring and assessment (Print) 185, pp. 3759–3781 |
| Keywords | Monitoring networkGroundwater qualityAquifer vulnerabilityGISCentral Italy |
| Journal | Environmental monitoring and assessment (Print) |
| Editor | Kluwer Academic Publishers, London, Paesi Bassi |
| Year | 2013 |
| Type | Articolo in rivista |
| DOI | 10.1007/s10661-012-2826-3 |
| Authors | Preziosi E., Petrangeli A.B., Giuliano G. |
| Text | 273289 2013 10.1007/s10661 012 2826 3 Monitoring network Groundwater quality Aquifer vulnerability GIS Central Italy Tailoring groundwater quality monitoring to vulnerability a GIS procedure for network design Preziosi E., Petrangeli A.B., Giuliano G. CNR IRSA, National Research Council of Italy Water Research Institute, Rome, Italy Monitoring networks aiming to assess the state of groundwater quality and detect or predict changes could increase in efficiency when fitted to vulnerability and pollution risk assessment. The main purpose of this paper is to describe a methodology aiming at integrating aquifers vulnerability and actual levels of groundwater pollution in the monitoring network design. In this study carried out in a pilot area in central Italy, several factors such as hydrogeological setting, groundwater vulnerability, and natural and anthropogenic contamination levels were analyzed and used in designing a network tailored to the monitoring objectives, namely, surveying the evolution of groundwater quality relating to natural conditions as well as to polluting processes active in the area. Due to the absence of an aquifer vulnerability map for the whole area, a proxi evaluation of it was performed through a geographic information system GIS methodology, leading to the so called susceptibility to groundwater quality degradation . The latter was used as a basis for the network density assessment, while water points were ranked by several factors including discharge, actual contamination levels, maintenance conditions, and accessibility for periodical sampling in order to select the most appropriate to the network. Two different GIS procedures were implemented which combine vulnerability conditions and water points suitability, producing two slightly different networks of 50 monitoring points selected out of the 121 candidate wells and springs. The results are compared with a manual selection of the points. The applied GIS procedures resulted capable to select the requested number of water points from the initial set, evaluating the most confident ones and an appropriate density. Moreover, it is worth underlining that the second procedure point distance analysis PDA is technically faster and simpler to be performed than the first one GRID PDA . 185 Articolo in rivista Kluwer Academic Publishers 0167 6369 Environmental monitoring and assessment Print Environmental monitoring and assessment Print Environ. monit. assess. Print Environmental monitoring and assessment. Print GIULIANO GIUSEPPE GENNARO elisabetta.preziosi PREZIOSI ELISABETTA annabruna.petrangeli PETRANGELI ANNA BRUNA TA.P04.005.012 Stato quali quantitativo dei corpi idrici sotterranei e interazione con i corpi idrici superficiali |
