@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://data.amerigeoss.org/dataset/6cb33d40-bbc8-44b3-922b-d6f1dd4ecc43> a dcat:Dataset ;
    dct:description """The widespread use of copper-treated lumber has increased the potential for human exposure. Moreover, there is a lack of information on the fate and behavior of copper-treated wood particles following oral ingestion. In this study, the in vitro bioaccessibility of copper from copper-treated wood dust in simulated stomach fluid and DI water was determined. Three copper-treated wood products, liquid alkali copper quaternary and two micronized copper quarternary from different manufacturers, were incubated in the extraction media then fractionated by centrifugation and filtration through 0.45 m and 10 kDa filters. The copper concentrations from isolated fractions were measured using Inductively Coupled Plasma-Optical Emission Spectrometry (ICP-OES). Total amounts of copper from each wood product were also determined using microwave-assisted acid digestion of dried wood samples and quantification using ICP-OES. The percent in vitro bioaccessible copper was between 83 and 90 % for all treated wood types. However, the percent of copper released in DI water was between 14 and 25 % for all wood products. This data suggests that copper is highly bioaccessible at low pH and may pose a potential human exposure risk upon ingestion. 

This dataset is associated with the following publication:
Santiago-Rodrigues, L., J.L. Griggs, K. Bradham , C. Nelson , T. Luxton , W. Platten , and K. Rogers. Assessment of the bioaccessibility of micronized copper wood in synthetic stomach fluid.   Environmental Nanotechnology, Monitoring and Management. Elsevier B.V., Amsterdam,  NETHERLANDS, 4: 85-92, (2015).""" ;
    dct:identifier "A-tx9t-277" ;
    dct:issued "2025-11-22T12:21:29.501218"^^xsd:dateTime ;
    dct:modified "2016-09-07"^^xsd:date ;
    dct:publisher <https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> ;
    dct:title "Assessment of the Bioaccessibility of Micronized Copper Wood on Simulated Stomach Fluid" ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "Kim Rogers" ;
            vcard:hasEmail <mailto:rogers.kim@epa.gov> ] ;
    dcat:distribution <https://data.amerigeoss.org/dataset/6cb33d40-bbc8-44b3-922b-d6f1dd4ecc43/resource/aaa892b4-cdd3-482d-bda0-8d44b12f8a70>,
        <https://data.amerigeoss.org/dataset/6cb33d40-bbc8-44b3-922b-d6f1dd4ecc43/resource/ca08a842-7ac1-46d3-b750-ebbe02bcf892> ;
    dcat:keyword "amerigeo",
        "amerigeoss",
        "bioaccessibility",
        "ckan",
        "copper",
        "geo",
        "geoss",
        "human-exposure",
        "micronized-copper",
        "national",
        "north-america",
        "synthetic-stomach-fluid",
        "united-states",
        "wood" .

<https://data.amerigeoss.org/dataset/6cb33d40-bbc8-44b3-922b-d6f1dd4ecc43/resource/aaa892b4-cdd3-482d-bda0-8d44b12f8a70> a dcat:Distribution ;
    dct:description "Table%20S3.docx" ;
    dct:format "DOC" ;
    dct:issued "2020-11-12T13:37:04.981909"^^xsd:dateTime ;
    dct:modified "2025-11-22T12:21:29.492828"^^xsd:dateTime ;
    dct:title "Table S3.docx" ;
    dcat:accessURL <https://pasteur.epa.gov/uploads/277/Table%20S3.docx> ;
    dcat:mediaType "application/vnd.openxmlformats-officedocument.wordprocessingml.document" .

<https://data.amerigeoss.org/dataset/6cb33d40-bbc8-44b3-922b-d6f1dd4ecc43/resource/ca08a842-7ac1-46d3-b750-ebbe02bcf892> a dcat:Distribution ;
    dct:description "Table%20S2.docx" ;
    dct:format "DOC" ;
    dct:issued "2020-11-12T13:37:04.981899"^^xsd:dateTime ;
    dct:modified "2025-11-22T12:21:29.492399"^^xsd:dateTime ;
    dct:title "Table S2.docx" ;
    dcat:accessURL <https://pasteur.epa.gov/uploads/277/Table%20S2.docx> ;
    dcat:mediaType "application/vnd.openxmlformats-officedocument.wordprocessingml.document" .

<https://data.amerigeoss.org/organization/727dbdd5-3f98-4ac0-9d28-5e344558139b> a foaf:Agent ;
    foaf:name "US Migrating" .