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TitleOverview of the Canadian component of the North American soil geochemical landscapes project with recommendations for acquiring soil geochemical data for environmental and human health risk assessments
AuthorFriske, P W B; Rencz, A N; Ford, K L; Kettles, I M; Garrett, R G; Grunsky, E C; McNeil, R J; Klassen, R A
SourceGeochemistry: Exploration, Environment, Analysis vol. 13, no. 4, 2013 p. 267-283, https://doi.org/10.1144/geochem2012-140
Year2013
Alt SeriesEarth Sciences Sector, Contribution Series 20120030
PublisherThe Geological Society of London
Documentserial
Lang.English
Mediapaper; on-line; digital
File formatpdf; html
ProvinceBritish Columbia; Alberta; Saskatchewan; Manitoba; Ontario; Quebec; New Brunswick; Nova Scotia; Prince Edward Island; Newfoundland and Labrador; Northwest Territories; Yukon; Nunavut
NTS1; 2; 3; 10; 11; 12; 13; 14; 15; 16; 20; 21; 22; 23; 24; 25; 26; 27; 28; 29; 30; 31; 32; 33; 34; 35; 36; 37; 38; 39; 40; 41; 42; 43; 44; 45; 46; 47; 48; 49; 52; 53; 54; 55; 56; 57; 58; 59; 62; 63; 64; 65; 66; 67; 68; 69; 72; 73; 74; 75; 76; 77; 78; 79; 82; 83; 84; 85; 86; 87; 88; 89; 92; 93; 94; 95; 96; 97; 98; 99; 102; 103; 104; 105; 106; 107; 114O; 114P; 115; 116; 117; 120; 340; 560
Lat/Long WENS-141.0000 -50.0000 90.0000 41.7500
Subjectsgeochemistry; soils science; environmental geology; soils; soil studies; soil geochemistry; soil surveys; environmental analysis; environmental studies
Illustrationsphotographs; location maps; tables; plots
ProgramProgram management and Transition Activities, Environmental Geoscience
AbstractThe involvement of the Geological Survey of Canada in the North American Soil Geochemical Landscapes Project from 2004 to 2009 led to the development of protocols to support environmental and human health risk assessments. Recommendations for acquiring soil samples, analysing them and the resulting geochemical data to support risk assessments, as well as outlines of a procedure for estimating geochemical background are presented. The following practices are proposed: (1) collection of soil samples from pedological horizons (C-horizon in particular) rather than depth-based intervals; (2) use of a spatially random sample design; (3) analysis of the unmilled <2-mm fraction; (4) dissolution using the US EPA (US Environmental Protection Agency) (US EPA) Method 3050B aqua regia variant; (5) archiving of sample splits; and (6) evaluation of chemical data through the insertion, analysis and monitoring of QA/QC samples. Part of the Canadian project was also the in-situ measurement of soil gas radon and the radiometric estimates of soil K, U and Th concentrations, the protocols for which are discussed.
GEOSCAN ID291392