NDLI: Effectiveness of a physical barrier for contaminant control in an unconfined coastal plain aquifer: the case study of the former industrial site of Bagnoli (Naples, southern Italy)

Content Provider	Springer Nature Link
Author	Arienzo, Michele Allocca, Vincenzo Manna, Ferdinando Trifuoggi, Marco Ferrara, Lucia
Copyright Year	2015
Abstract	A vertical engineered barrier (VEB) coupled with a water treatment plant was surveyed in the framework of a vast remedial action at the brownfield site of the former ILVA of Bagnoli steel making facility located in western Naples, Italy. The VEB was put in place to minimize contaminant migration from the brownfield site toward the sea at the shorelines sites of Bagnoli and Coroglio. The efficiency of the VEB was monitored through 12 piezometers, 8 at the Bagnoli shoreline and 4 at the Coroglio shoreline. Concentrations of inorganic and organic pollutants were examined in upstream and downstream groundwater relative to the VEB. The mean levels of Al, As, Fe, and Mn largely exceeded the legal limits, 10–15-fold, whereas that of Hg was up to 3-fold the rules. The VEB decreased the outlet concentrations only at certain specific location of the barrier, four times for Al, 6-fold for Hg, and by 20 % for Mn with means largely exceeding the rules. At the other sites, the downstream water showed marked increases of the pollutants up to 3-fold. Outstanding levels of the hydrocarbons > 12 were detected in the inlet water with means of some hundred times the limits at both sites. Likewise most of screened inorganic pollutants, the downstream water showed marked increases of the hydrocarbons up to ~113 %. The treatment plant was very effective, with removal efficiencies >80 % for As, Al, Fe, and Mn. The study evidenced the need to put alternative groundwater remedial actions.
Starting Page	1
Ending Page	13
Page Count	13
File Format	PDF
ISSN	01676369
Journal	Environmental Monitoring and Assessment
Volume Number	187
Issue Number	12
e-ISSN	15732959
Language	English
Publisher	Springer International Publishing
Publisher Date	2015-11-18
Publisher Place	Cham
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Bagnoli steel plant Coastal plain aquifer Pollution Heavy metals PAHs PCBs Groundwater remediation Physical barrier Environmental Monitoring/Analysis Environmental Management Ecotoxicology Atmospheric Protection/Air Quality Control/Air Pollution Ecology
Content Type	Text
Resource Type	Article
Subject	Pollution Medicine Management, Monitoring, Policy and Law

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