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                    <gmd:CI_RoleCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_RoleCode" codeListValue="custodian">custodian</gmd:CI_RoleCode>
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            </gmd:CI_Citation>
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          <gmd:type>
            <gmd:MD_KeywordTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="theme">theme</gmd:MD_KeywordTypeCode>
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          <gmd:thesaurusName>
            <gmd:CI_Citation>
              <gmd:title>
                <gco:CharacterString>NCCOS Research Data Type</gco:CharacterString>
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            <gco:CharacterString>Stressor Impacts and Mitigation</gco:CharacterString>
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                <gco:CharacterString>NCCOS Research Priority</gco:CharacterString>
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            <gco:CharacterString>Chemical Contaminants</gco:CharacterString>
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                <gco:CharacterString>NCCOS Research Topic</gco:CharacterString>
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            <gco:CharacterString>Chemical Contaminant</gco:CharacterString>
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            <gco:CharacterString>cis- and trans-permethrin</gco:CharacterString>
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          <gmd:keyword>
            <gco:CharacterString>fipronils</gco:CharacterString>
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            <gco:CharacterString>passive sampling</gco:CharacterString>
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            <gmx:Anchor xlink:href="https://cmr.earthdata.nasa.gov/kms/concept/32402358-e5dc-4c01-bede-5304ebea0584" xlink:actuate="onRequest">GAS CHROMATOGRAPHS &gt; GAS CHROMATOGRAPHS</gmx:Anchor>
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                            <gco:CharacterString>Greenbelt</gco:CharacterString>
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                            <gco:CharacterString>MD</gco:CharacterString>
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                            <gmd:URL>https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords</gmd:URL>
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                            <gco:CharacterString>HTTPS</gco:CharacterString>
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                            <gco:CharacterString>Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 21. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords</gco:CharacterString>
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            <gmd:MD_KeywordTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="platform">platform</gmd:MD_KeywordTypeCode>
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                <gco:CharacterString>Provider Platform Names</gco:CharacterString>
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      <gmd:descriptiveKeywords>
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            <gmx:Anchor xlink:href="https://cmr.earthdata.nasa.gov/kms/concept/a4202721-0cba-4fa1-853f-890f146b04f9" xlink:actuate="onRequest">OCEAN &gt; ATLANTIC OCEAN &gt; NORTH ATLANTIC OCEAN</gmx:Anchor>
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            <gmd:MD_KeywordTypeCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#MD_KeywordTypeCode" codeListValue="place">place</gmd:MD_KeywordTypeCode>
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                            <gco:CharacterString>MD</gco:CharacterString>
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                      <gmd:onlineResource>
                        <gmd:CI_OnlineResource>
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                            <gmd:URL>https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords</gmd:URL>
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                            <gco:CharacterString>HTTPS</gco:CharacterString>
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                            <gmd:CI_OnLineFunctionCode codeList="https://data.noaa.gov/resources/iso19139/schema/resources/Codelist/gmxCodelists.xml#CI_OnLineFunctionCode" codeListValue="information">information</gmd:CI_OnLineFunctionCode>
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            <gco:CharacterString>Cite as: Pisarski, Emily (2025). NCCOS Assessment: Developing and Implementing Protocols for the use of Passive Samplers in Environmental Monitoring: Validating In Situ Use and Expanding the Application of Passive Samplers such as Silicone Bands for chemical contaminants in the Charleston Harbor, Charleston, SC, 2021-2024 (NCEI Accession 0308299). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/5bby-mz53. Accessed [date].</gco:CharacterString>
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      <gmd:resourceConstraints>
        <gmd:MD_LegalConstraints>
          <gmd:useLimitation>
            <gco:CharacterString>Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.</gco:CharacterString>
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            <gco:CharacterString>Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.</gco:CharacterString>
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      <gmd:resourceConstraints xlink:title="Data License Statement">
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          <gmd:useConstraints>
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          <gmd:otherConstraints>
            <gmx:Anchor xlink:href="https://creativecommons.org/publicdomain/zero/1.0/" xlink:actuate="onRequest" xlink:title="CC0-1.0">This dataset has been dedicated to the public domain under a Creative Commons CC0 1.0 Universal (CC0 1.0) Public Domain Dedication.</gmx:Anchor>
          </gmd:otherConstraints>
          <gmd:otherConstraints>
            <gmx:Anchor xlink:href="https://spdx.org/licenses/CC0-1.0" xlink:actuate="onRequest" xlink:title="CC0-1.0">SPDX License: Creative Commons Zero v1.0 Universal (CC0-1.0)</gmx:Anchor>
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                    <gco:Date>2020</gco:Date>
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                            <gmd:URL>https://coastalscience.noaa.gov/project/using-silicone-bands-to-detect-organic-contaminants-in-coastal-waters-around-charleston-south-carolina/</gmd:URL>
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Sampling and Analyzing Method: Silicone band passive samplers were deployed at locations seasonally. Silicone bands were extracted using ethyl acetate and analyzed using gas chromatography mass spectrometry.;
Data Quality Method: Calibration curves were run prior to sample analysis and continuing calibration verification (CCVs) standards were run every 15-20 samples. Calibration curve r-squared values for each analytes were ≥ 0.995. Percent recoveries for 80% of analytes were within 80-120%; otherwise recalibration of the instrument was performed.</gco:CharacterString>
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