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TitleDistribution, transport, and sources of metals in marine sediments near a coastal lead smelter in northern New Brunswick
DownloadFree download (whole publication) (zip 212296 KB)
AuthorParsons, M B; Cranston, R E
SourceMetals in the environment around smelters at Rouyn-Noranda, Quebec, and Belledune, New Brunswick: Results and conclusions of the GSC MITE Point Sources Project; by Bonham-Carter, G; Geological Survey of Canada, Bulletin no. 584, 2005, 27 pages; 1 CD-ROM, https://doi.org/10.4095/221178
Year2005
PublisherNatural Resources Canada
Documentserial
Lang.English
MapsPublication contains 1 map
Map Info.surficial geology, 1:250,000
MediaCD-ROM; digital; on-line
RelatedThis publication is contained in Bonham-Carter, G; (2005). Metals in the environment around smelters at Rouyn-Noranda, Quebec, and Belledune, New Brunswick: results and conclusions of the GSC MITE Point Sources Project, Geological Survey of Canada, Bulletin no. 584
File formatreadme / lisez-moi
File formataep (ESRI® ArcExplorer(TM) v. 2.0 is included / est fourni); apr (ESRI® ArcExplorer(TM) v. 2.0 is included / est fourni); avl (ESRI® ArcExplorer(TM) v. 2.0 is included / est fourni); bmp; dbf (ESRI® ArcExplorer(TM) v. 2.0 is included / est fourni); dmg (Adobe Acrobat Reader v.6.0 is included / est fourni); doc (Microsoft Word); e00 (ESRI® ArcExplorer(TM) v. 2.0 is included / est fourni); fpt (ESRI® ArcExplorer(TM) v. 2.0 is included / est fourni); gif; htm; jpg; pdf (Adobe Acrobat Reader v.6.0 is included / est fourni); pdx (Adobe Acrobat Reader v.6.0 is included / est fourni); prj (ESRI® ArcExplorer(TM) v. 2.0 is included / est fourni); sbn (ESRI® ArcExplorer(TM) v. 2.0 is included / est fourni); sbx (ESRI® ArcExplorer(TM) v. 2.0 is included / est fourni); shp (ESRI® ArcExplorer(TM) v. 2.0 is included / est fourni); txt; xls (Microsoft Excel); xml; pdf
ProvinceNew Brunswick; Quebec
NTS21O/09; 21O/16; 21P/09; 21P/10; 21P/11; 21P/12; 21P/13; 21P/14; 21P/15; 21P/16; 22A/01; 22A/02; 22A/03; 22A/04; 22A/05; 22A/06; 22A/07; 22A/08; 22B/01; 22B/08
Areabaie des Chaleurs; Chaleur Bay; northern New Brunswick; Caraquet; Bathurst; Belledune; Dalhousie; Gaspésie
Lat/Long WENS-66.4167 -64.4333 48.5000 47.5833
Subjectsgeochemistry; environmental geology; marine geology; smelters; mining activities; metals; pollution; geochemical analyses; environmental studies; environmental impacts; marine sediment geochemistry; estuaries; concentration; element distribution; source areas; base metal deposits; dispersal patterns; marine environments; arsenic; cadmium; copper; lead; mercury; zinc; nearshore currents; lead isotope ratios; sulphur emissions; oceanography; hydrologic environment; marine sediment cores; depositional history; chemical processes; pore water samples; spectrometric analyses; organic carbon; iron; nickel; manganese; Brunswick Smelter; risk assessment; risk management; physical processes; grain size; sediment mineralogy; point sources; wind
Illustrationsbathymetric maps; tables; time series; photomicrographs; rose diagrams; geochemical profiles; sketch maps; plots; Concordia diagrams
ProgramMetals in the Environment (MITE)
LinksMetadata
LinksMétadonnées
Released2005 12 22
AbstractSignificant variations in metal concentrations occur in marine sediments collected from Chaleur Bay, an estuary located between northern New Brunswick and Quebec's Gaspésie. The bay receives metals from many sources including a lead smelter, a mercury-cell chlor-alkali plant, and numerous mined and unmined base-metal deposits. This study examines the dispersal patterns of metals released to the bay from natural and anthropogenic sources, and the processes that collect and redistribute these elements in the marine environment. Bottom sediments were collected from 124 sites in the bay, at distances up to 100 km away from the smelter. The ranges in metal and metalloid concentrations of 918 sediment subsamples are as follows, in mg/kg: As, 2.8 to 74; Cd, 0.02 to 69; Cu, 3.4 to 200; Hg, <0.01 to 2.4; Pb, 0.3 to 2000; and Zn, 22 to 3200. Dispersion of smelter effluents and atmospheric emissions by wind and/or nearshore currents has resulted in an area of elevated As, Cd, Cu, Hg, Pb, and Zn concentrations in surficial sediments within approximately 10 to 20 km of the smelter. The concentrations of most metals decrease sharply with increasing distance from the smelter; however, Pb concentrations exceed background levels in surface sediments throughout the bay. In sediments adjacent to the smelter, metal levels are highest at approximately 5 to 10 cmdepth and decrease toward the sediment surface, which may reflect the significant reduction in smelter emissions since the mid-1970s. Lead isotope ratios suggest that the surface enrichment of Pb throughout the bay is mainly derived from smelter emissions and historical leaded gasoline combustion.
GEOSCAN ID221178