River system recovery following the Novaţ-Roşu tailings dam failure, Maramureş County, Romania

H...............H

Show simple item record

dc.contributor.author Bird, Graham
dc.contributor.author Brewer, Paul A.
dc.contributor.author Macklin, Mark G.
dc.contributor.author Balteanu, Dan
dc.contributor.author Serban, Mihaela
dc.contributor.author Driga, Basarab
dc.contributor.author Zaharia, Sorin
dc.date.accessioned 2011-04-14T08:31:03Z
dc.date.available 2011-04-14T08:31:03Z
dc.date.issued 2008-12-01
dc.identifier.citation Bird , G , Brewer , P A , Macklin , M G , Balteanu , D , Serban , M , Driga , B & Zaharia , S 2008 , ' River system recovery following the Novaţ-Roşu tailings dam failure, Maramureş County, Romania ' Applied Geochemistry , vol 23 , no. 12 , pp. 3498-3518 . en
dc.identifier.issn 0883-2927
dc.identifier.other PURE: 158374
dc.identifier.other dspace: 2160/6522
dc.identifier.uri http://hdl.handle.net/2160/6522
dc.description Bird, G., Brewer, P. A., Macklin, M. G., Balteanu, D., Serban, M., Driga, B., Zaharia, S. (2008). River system recovery following the Novaţ-Roşu tailings dam failure, Maramureş County, Romania. Applied Geochemistry 23(12), 3498-3518. Sponsorship: Royal Society Joint Project Grant en
dc.description.abstract The River Vişeu catchment in Maramureş County, northwestern Romania, has a long history of base and precious metal mining. Between 1994 and 2003 waste from mining activity at Baia Borşa was stored in the Novaţ-Roşu tailings pond in the upper Vişeu catchment. However, in March 2000, the tailings dam failed releasing approximately 100,000 m3 of contaminated water and 20,000 t of mineral-rich solid waste, which was routed downstream through the Rivers Novaţ, Vaser and Vişeu into the River Tisa. Following the accident metal (Cd, Cu, Pb, Zn) concentrations in river water and river channel sediment were assessed in samples collected annually (July 2000, 2001, 2002 and 2003) from 29 sites in the Vişeu catchment, downstream of the tailings pond. Additionally, the speciation of sediment-associated metals was established using a 4-stage sequential extraction procedure (SEP) and Pb isotope analysis (206/204Pb and 207/204Pb) was carried out to establish the provenance of contaminated sediments. Metal concentrations in river water were found to comply with EU directive ‘target’ values within four months of the failure. However, the impact of the spill upon river channel sediments was found to be much longer-lasting, with evidence of the delayed downstream remobilization of tailings stored within the narrow Novaţ valley following the dam failure, as well as continued inputs of contaminated sediment to the River Vişeu from the River Tisla, another mining-affected tributary. Comparison with data from other recent tailings dam failures, indicates that river system recovery rates depend upon local geomorphological conditions, hydrological regimes, and the nature and scale of post-spill clean-up operations. en
dc.format.extent 21 en
dc.language.iso eng
dc.relation.ispartof Applied Geochemistry en
dc.title River system recovery following the Novaţ-Roşu tailings dam failure, Maramureş County, Romania en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.identifier.doi http://dx.doi.org/10.1016/j.apgeochem.2008.08.010
dc.contributor.institution Institute of Geography & Earth Sciences en
dc.contributor.institution River Basin Dynamics and Hydrology en
dc.description.status Peer reviewed en


Files in this item

Files Size Format View

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record

Search Cadair


Advanced Search

Browse

My Account