Geochemical and mineralogical data for soils of the conterminous United States

Smith, Bruce; Cannon, William F.; Woodruff, Laurel G.; Solano, Federico; Kilburn, J.E.; Fey, D.L.

doi:10.3133/ds801

Cited by 152 publications

(206 citation statements)

References 15 publications

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“…Using a generalized random tessellation stratified design for sample site selection, 4,857 sample sites (~1 site per 1,600 km 2 ) were utilized for the USGS North American Soil Geochemical Landscapes Project, and 209 of those sites were utilized in this study [14]. In a major geochemical mapping project such as this, the quality of chemical analyses is of utmost importance.…”

Section: Sample Sites and Geochemical Datamentioning

confidence: 99%

“…Quality control samples (RMs and analytical duplicates) constituted approximately 12% of the total number of samples analyzed. A complete discussion of the QC protocols used in this project, including detailed tables of bias and precision, is given in Smith et al (2013) [14].…”

Section: Sample Sites and Geochemical Datamentioning

confidence: 99%

“…In short, the <2-mm fraction of each sample that was collected from a depth of 0 to 5 cm below the soil surface was analyzed for aluminum (Al), arsenic (As), calcium (Ca), iron (Fe), mercury (Hg), potassium (K), magnesium (Mg), sodium (Na), sulfur (S), titanium (Ti), silver (Ag), barium (Ba), beryllium (Be), bismuth (Bi), cadmium (Cd), cerium (Ce), cobalt (Co), chromium (Cr), cesium (Cs), copper (Cu), gallium (Ga), indium (In), lanthanum (La), lithium (Li), manganese (Mn), molybdenum (Mo), niobium (Nb), nickel (Ni), phosphorus (P), lead (Pb), rubidium (Rb), antimony (Sb), scandium (Sc), selenium (Se), tin (Sn), strontium (Sr), tellurium (Te), thorium (Th), thallium (Tl), uranium (U), vanadium (V), tungsten (W), yttrium (Y) and zinc (Zn) [14]. Elemental concentrations were reported as weight percent (wt % = Al, Ca, Fe, K, Mg, Na, Ti and S) or milligrams per kilogram (mg/kg) [14].…”

Section: Sample Sites and Geochemical Datamentioning

confidence: 99%

“…Elemental concentrations were reported as weight percent (wt % = Al, Ca, Fe, K, Mg, Na, Ti and S) or milligrams per kilogram (mg/kg) [14]. Figure 1 illustrates state counties reporting outbreaks or cases of anthrax in agricultural animals/wildlife since 2000 (red counties).…”

Section: Sample Sites and Geochemical Datamentioning

confidence: 99%

“…State county outbreak and case data were compiled from state animal health organizations and the National Animal Health Reporting System [18]. Geochemical sample sites (USGS Geochemical Landscape Project sample site numbers presented in data tables [14]) were chosen within each county ( Table 1 …”

Section: Sample Sites and Geochemical Datamentioning

confidence: 99%

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Anthrax and the Geochemistry of Soils in the Contiguous United States

et al. 2014

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Soil geochemical data from sample sites in counties that reported occurrences of anthrax in wildlife and livestock since 2000 were evaluated against counties within the same states (MN, MT, ND, NV, OR, SD and TX) that did not report occurrences. These data identified the elements, calcium (Ca), manganese (Mn), phosphorus (P) and strontium (Sr), as having statistically significant differences in concentrations between county type (anthrax occurrence versus no occurrence). Tentative threshold values of the lowest concentrations of each of these elements (Ca = 0.43 wt %, Mn = 142 mg/kg, P = 180 mg/kg and Sr = 51 mg/kg) and average concentrations (Ca = 1.3 wt %, Mn = 463 mg/kg, P = 580 mg/kg and Sr = 170 mg/kg) were identified from anthrax-positive counties as OPEN ACCESSGeosciences 2014, 4 115 prospective investigative tools in determining whether an outbreak had "potential" or was "likely" at any given geographic location in the contiguous United States.

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Section: Sample Sites and Geochemical Datamentioning

confidence: 99%

Section: Sample Sites and Geochemical Datamentioning

confidence: 99%

Section: Sample Sites and Geochemical Datamentioning

confidence: 99%

Section: Sample Sites and Geochemical Datamentioning

confidence: 99%

Section: Sample Sites and Geochemical Datamentioning

confidence: 99%

See 3 more Smart Citations

Anthrax and the Geochemistry of Soils in the Contiguous United States

et al. 2014

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Tungsten

Olalde,

Venezia

2023

Patty's Toxicology

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Tungsten is a rare metal with numerous applications, most notably in machine tools, catalysts, and superalloys. The physical and chemical properties of tungsten and its compounds of commercial importance (such as sodium tungstate, ammonium meta ‐ and para ‐tungstate, tungsten metal, tungsten carbide, and tungsten oxides), as well as tungsten industrialization, recycling, occupational exposure, and biomonitoring are discussed. Between 1970 and 1990, most tungsten toxicological investigations concerned the toxicity and health effects of cemented carbides, also known as hard metal, rather than tungsten and its compounds themselves. However, within the last decade a diversity of studies on the toxicity of the water soluble and bioavailable sodium tungstate, have been conducted to fill several toxicity knowledge gaps. Acute toxicity studies on several soluble (sodium tungstate, ammonium para ‐ and meta ‐tungstate) and sparingly water‐soluble (tungsten metal, tungsten oxides, tungsten carbide) substances reported low acute oral, dermal, and inhalation toxicity, as well as a lack of eye and dermal irritation and sensitization potential. Studies published within the last 5–7 years on sodium tungstate include oral repeated exposure, reproductive, developmental, neurotoxicological, and immunotoxicological endpoints. Several reports have incorrectly associated repeated exposure toxicity of hard metals with pure tungsten carbide. As the toxicity of hard metal does not represent the intrinsic toxicity of tungsten substances so it is discussed separately within this chapter.

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Importance of vegetation for manganese cycling in temperate forested watersheds

Herndon

Andrews

Eissenstat

et al. 2015

Global Biogeochemical Cycles

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Many surface soils are enriched in metals due to anthropogenic atmospheric inputs. To predict the persistence of these contaminants in soils, factors that impact rates of metal removal from soils into streams must be understood. Experiments at containerized seedling (mesocosm), pedon, and catchment scales were used to investigate the influence of vegetation on manganese (Mn) transport at the Susquehanna/Shale Hills Critical Zone Observatory (SSHCZO) in Pennsylvania, USA, where past atmospheric inputs from industrial sources have enriched Mn in surface soils. Large quantities of Mn that were leached from soil components into solution were taken up by vegetation; as a result, only relatively small quantities of Mn were removed from soil into effluent and streams. Manganese uptake into vegetation exceeded Mn losses in soil leachate by 20-200X at all scales, and net Mn loss from soils decreased in the presence of vegetation due to uptake into plant tissues. The majority of Mn taken up by forest vegetation at SSHCZO each year was returned to the soil in leaf litter and consequently immobilized as Mn oxides that formed during litter decomposition. Thus, plant uptake of Mn combined with rapid oxidation of Mn during litter decomposition contribute to long-term retention. Current release rates of soluble Mn from SSHCZO soils were similar to release rates from the larger Susquehanna River Basin, indicating that the processes observed at SSHCZO may be widespread across the region. Indeed, although atmospheric deposition of Mn has declined, surface soils at SSHCZO and throughout the eastern United States remain enriched in Mn. If recycling through vegetation can attenuate the removal of Mn from soils, as observed in this study, then Mn concentrations in soils and river waters will likely decrease slowly over time following watershed contamination. Understanding the role of vegetation in regulating metal transport is important for evaluating the long-term effects of historical and ongoing metal loading to soils.

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Geochemical and mineralogical data for soils of the conterminous United States

Cited by 152 publications

References 15 publications

Anthrax and the Geochemistry of Soils in the Contiguous United States

Anthrax and the Geochemistry of Soils in the Contiguous United States

Tungsten

Importance of vegetation for manganese cycling in temperate forested watersheds

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