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    <dct:description>Sediment and biotic samples were collected from four locations on the Anahuac National Wildlife Refuge for a contaminant survey. Contaminants examined in the analysis included organochlorine and organophosphate pesticides, heavy metals, and petroleum hydrocarbons. Analytical results indicate the refuge is, for the most part, not contaminated by these chemicals. Two localized areas have minor contaminant problems. Petroleum hydrocarbons contaminate the irrigation canal sediment near a dieselpowered lift pump and the bottom sediments of Jackson Ditch near a petroleum production area. Four heavy metals chromium, copper, nickel, and silver were also present at elevated levels in the sediment of Jackson Ditch, relative to other locations on the refuge.</dct:description>
        <dcat:keyword>environmental-contaminants-investigation</dcat:keyword>
        <dcat:keyword>heavy-metals</dcat:keyword>
        <dcat:keyword>irrigation</dcat:keyword>
        <dcat:keyword>ocs</dcat:keyword>
        <dcat:keyword>organochlorines</dcat:keyword>
        <dcat:keyword>pesticides</dcat:keyword>
        <dcat:keyword>petroleum-hydrocarbons</dcat:keyword>
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    <dct:title>Contaminant survey of the Anahuac National Wildlife Refuge</dct:title>
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        <foaf:name>Richard Easterbrook</foaf:name>
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            <rdf:value>If a link exists, you may download the associated files. Otherwise, please contact the associated Point of Contact to determine the best means to access the information.</rdf:value>
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