gov.noaa.nodc:0309236 eng utf8 dataset NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NOAA Contact Information Information for contacts at NCEI. information custodian 2026-06-08T13:24:11Z ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) Water quality surveys in Culebra: human dietary tracers—caffeine and sucralose—concentrations from 2023-05-03 to 2024-05-21 (NCEI Accession 0309236) 2025-11-05 publication 2025-11-04 creation International DOI Foundation (IDF) 10.25921/mzy3-th90 NOAA National Centers for Environmental Information gov.noaa.nodc:0309236 NCEI Archive Management System 0309236 NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information publisher Bernardo Vargas-Ángel NOAA Office for Coastal Management (OCM) bernardo.vargas-angel@noaa.gov https://coast.noaa.gov/ HTTPS NOAA Office for Coastal Management (OCM) website Institution web page information resourceProvider NOAA Office of Habitat Conservation (NMFS/OHC) https://www.fisheries.noaa.gov/about/office-habitat-conservation HTTPS NOAA Office of Habitat Conservation (NMFS/OHC) website Institution web page information resourceProvider Bernardo Vargas-Ángel Lynker, under contract to NOAA Coral Reef Conservation Program bernardo.vargas-angel@noaa.gov pointOfContact Whitall, David NOAA National Centers for Coastal Ocean Science https://coastalscience.noaa.gov/ HTTPS NOAA National Centers for Coastal Ocean Science (NCCOS) website Institution web page information author Viqueira-Rios, Jorge Protectores de Cuencas author Figueroa-Sanchez, Yasiel Protectores de Cuencas author Sanchez, Juan Protectores de Cuencas author Rivera-Rieira, Rebeca Protectores de Cuencas author Rivera-Rieira, Rebeca Protectores de Cuencas author Vargas-Ángel, Bernardo Lynker, under contract to NOAA Restoration Center bernardo.vargas-angel@noaa.gov author Vandiver, Lisa NOAA Restoration Center https://www.fisheries.noaa.gov/about/office-habitat-conservation HTTPS NOAA Restoration Center website Institution web page information author NOAA Office of Habitat Conservation (NMFS/OHC) https://www.fisheries.noaa.gov/about/office-habitat-conservation HTTPS NOAA Office of Habitat Conservation (NMFS/OHC) website Institution web page information contributor tableDigital This record describes water quality human dietary tracer concentration metrics collected monthly between May 2023 to May 2024 to provide reference data of nearshore water quality on the island of Culebra, Puerto Rico. The water quality monitoring was conducted at 13 fixed nearshore stations co-located with long-term seagrass monitoring sites. Nearshore monitoring sites were selected to identify watershed discharge points, coastal hydrodynamics, as well as the existing level of LBSP exposure and anticipated changes to LBSP exposure due to management actions. Nearshore monitoring stations were designated based on their land based sources of pollution management implementation status (LBSP Treatment Group), as follows: 1) LBSP Restoration stations: Located downstream where land-based pollutant management has or is being implemented. 2) LBSP Control stations: Represent a range of land-based pollutant impairments, including sites with no LBSP management, no known direct discharge of LBSP but are representative of the range of external factors that may be encountered at the LBSP Restoration stations. 3) Negative Reference stations of know significant -anecdotal and quantified- LBSP impairment. 4) Positive Reference stations of low LBSP impairment. Nearshore water quality samples were collected at surface (10-25cm). The data presented herein was collected with financial and in-kind support from NOAA Restoration Center, NOAA Coral Reef Conservation Program, and NOAA National Centers for Coastal and Ocean Sciences. These data address LBSP pollutant exposure monitoring, specifically human dietary tracer concentrations, which together with LBSP stressor and habitat response monitoring represent the basis of Culebra's integrated LBSP Monitoring and Evaluation Framework with which to assess progress and effectiveness toward achieving NOAA LBSP management goals and outcomes on Culebra. Funding Agency: NOAA Coral Reef Conservation Program Funding Agency: NOAA Restoration Center Funding Agency: NOAA National Centers for Coastal and Ocean Science Funding Agency: National Fish and Wildlife Foundation completed historicalArchive NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact HTTPS NCEI Contact Information Information for contacts at NCEI. information pointOfContact asNeeded https://www.ncei.noaa.gov/access/metadata/landing-page/bin/gfx?id=gov.noaa.nodc:0309236 Preview graphic PNG 0309236 NCEI ACCESSION NUMBER 2025-10-30 publication ORGANIC CHEMICALS SOLIDS WATER FEATURES theme NODC DATA TYPES THESAURUS chromatograph laboratory analysis mass spectrometer Niskin bottle instrument NODC INSTRUMENT TYPES THESAURUS chemical in situ laboratory analyses manual sample collection theme NODC OBSERVATION TYPES THESAURUS NOAA Office of Habitat Conservation dataCentre NODC COLLECTING INSTITUTION NAMES THESAURUS NOAA Office of Habitat Conservation dataCentre NODC SUBMITTING INSTITUTION NAMES THESAURUS Coral Reef Conservation Program (CRCP) CORAL REEF STUDIES project NODC PROJECT NAMES THESAURUS Caribbean Sea place NODC SEA AREA NAMES THESAURUS oceanography theme WMO_CategoryCode 2012-09-15 publication DOC/NOAA/NMFS > National Marine Fisheries Service, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page 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 information custodian 30033 Reducing LBSP threats from unpaved roads on Culebra Island project CRCP Project Numeric Data Sets > Chemistry Numeric Data Sets > Water Quality theme CoRIS Discovery Thesaurus EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > In Situ Chemical EARTH SCIENCE > Biosphere > Zoology > Corals > Reef Monitoring and Assessment > Watershed Data EARTH SCIENCE > Hydrosphere > Water Quality EARTH SCIENCE > Oceans > Ocean Chemistry > Dissolved Solids theme CoRIS Theme Thesaurus EARTH SCIENCE > OCEANS > MARINE SEDIMENTS > SUSPENDED SOLIDS EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY theme Global Change Master Directory (GCMD) Science Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page 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 information custodian Human dietary tracers: caffeine and sucralose theme Provider Keywords GAS CHROMATOGRAPHS > GAS CHROMATOGRAPHS MASS SPECTROMETERS > MASS SPECTROMETERS NISKIN BOTTLES instrument Global Change Master Directory (GCMD) Instrument Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page 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 information custodian COUNTRY/TERRITORY > United States of America > Puerto Rico > Culebra Island (18N065W0011) OCEAN BASIN > Atlantic Ocean > Caribbean Sea /North Atlantic Ocean > Puerto Rico > Culebra Island (18N065W0011) place CoRIS Place Thesaurus OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > CARIBBEAN SEA place Global Change Master Directory (GCMD) Location Keywords 2026 revision 24 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) Greenbelt MD https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords HTTPS GCMD Keyword Forum Page 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 information custodian Culebra Island, Puerto Rico place Provider Place Names 4MD79U Send2NCEI Submission Package ID accessLevel: public otherRestrictions Cite as: Whitall, David; Viqueira-Rios, Jorge; Figueroa-Sanchez, Yasiel; Sanchez, Juan; Rivera-Rieira, Rebeca; Rivera-Rieira, Rebeca; Vargas-Ángel, Bernardo; Vandiver, Lisa (2025). Water quality surveys in Culebra: human dietary tracers—caffeine and sucralose—concentrations from 2023-05-03 to 2024-05-21 (NCEI Accession 0309236). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/mzy3-th90. Accessed [date]. 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. otherRestrictions 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. license This dataset has been dedicated to the public domain under the Creative Commons CC0 1.0 Universal (CC0 1.0) Public Domain Dedication. SPDX License: Creative Commons Zero v1.0 Universal (CC0-1.0) Vargas-Ángel, B. (2024). Culebra LBSP Ridge to Reef Monitoring Program. 2024-05-31 publication https://coast.noaa.gov/coral_storage/library/NOAA/CRCP/NMFS/OHC/Projects/30033/Culebra_LBSP_RidgeToReef_Monitoring_Program/Vargas-Angel2024_Culebra_LBSP_RidgeToReef_Monitoring_Program.pdf HTTPS https://coast.noaa.gov/coral_storage/library/NOAA/CRCP/NMFS/OHC/Projects/30033/Culebra_LBSP_RidgeToReef_Monitoring_Program/Vargas-Angel2024_Culebra_LBSP_RidgeToReef_Monitoring_Program.pdf Related report information Vargas-Ángel, Bernardo US DOC; NOAA; NOS; Office for Coastal Management author US DOC; NOAA; NOS; Coral Reef Conservation Program publisher documentDigital crossReference sciencePaper Vargas-Ángel, B. (2024). Culebra Nearshore Water Quality Monitoring Program Work Plan. 2024-05-22 publication https://coast.noaa.gov/coral_storage/library/NOAA/CRCP/NMFS/OHC/Projects/30033/Culebra_LBSP_RidgeToReef_Monitoring_Program/Vargas-Angel2024c_Nearshore_WaterQuality_Monitoring_WorkPlan.pdf HTTPS https://coast.noaa.gov/coral_storage/library/NOAA/CRCP/NMFS/OHC/Projects/30033/Culebra_LBSP_RidgeToReef_Monitoring_Program/Vargas-Angel2024c_Nearshore_WaterQuality_Monitoring_WorkPlan.pdf Related report information Vargas-Ángel, Bernardo US DOC; NOAA; NOS; OFfice for Coastal Management author US DOC; NOAA; NOS; Coral Reef Conservation Program publisher documentDigital crossReference sciencePaper Vargas-Ángel, B. (2024). Culebra Seagrass Monitoring Work Plan. 2024-05-22 publication https://coast.noaa.gov/coral_storage/library/NOAA/CRCP/NMFS/OHC/Projects/30033/Culebra_LBSP_RidgeToReef_Monitoring_Program/Vargas-Angel2024e_Seagrass_Monitoring_Transects_WorkPlan.pdf HTTPS https://coast.noaa.gov/coral_storage/library/NOAA/CRCP/NMFS/OHC/Projects/30033/Culebra_LBSP_RidgeToReef_Monitoring_Program/Vargas-Angel2024e_Seagrass_Monitoring_Transects_WorkPlan.pdf Related report information Vargas-Ángel, Bernardo US DOC; NOAA; NOS; OFfice for Coastal Management author US DOC; NOAA; NOS; Coral Reef Conservation Program publisher documentDigital crossReference sciencePaper Vargas-Ángel, B. (2024). Culebra LBSP Ridge to Reef Monitoring Program Appendix A: Identifying Priority Fixed-Site Monitoring Locations. 2024-05-22 publication https://coast.noaa.gov/coral_storage/library/NOAA/CRCP/NMFS/OHC/Projects/30033/Culebra_LBSP_RidgeToReef_Monitoring_Program/Vargas-Angel2024f_Appendix-A_Identifying_Priority_Fixed-Site_Monitoring_Locations.pdf HTTPS https://coast.noaa.gov/coral_storage/library/NOAA/CRCP/NMFS/OHC/Projects/30033/Culebra_LBSP_RidgeToReef_Monitoring_Program/Vargas-Angel2024f_Appendix-A_Identifying_Priority_Fixed-Site_Monitoring_Locations.pdf Related report information Vargas-Ángel, Bernardo US DOC; NOAA; NOS; OFfice for Coastal Management author US DOC; NOAA; NOS; Coral Reef Conservation Program publisher documentDigital crossReference sciencePaper eng; USA utf8 environment oceans -65.3083333 -65.2444444 18.288611 18.319444 2023-05-03 2024-05-21 NOAA National Centers for Environmental Information +1-301-713-3277 ncei.info@noaa.gov pointOfContact In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media. Contact NCEI for other distribution options and instructions. CSV PDF 5.848 https://doi.org/10.25921/mzy3-th90 HTTPS Web browser NCEI Dataset Landing Page Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/oas/309236 HTTPS Web browser Descriptive Information Navigate directly to the URL for a descriptive web page with download links. information https://www.ncei.noaa.gov/archive/accession/download/309236 HTTPS Web browser HTTPS Navigate directly to the URL for data access and direct download. download ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0241/0309236/ FTP Any FTP client FTP These data are available through the File Transfer Protocol (FTP). FTP is no longer supported by most internet browsers. You may copy and paste the FTP link to the data into an FTP client (e.g., FileZilla or WinSCP). download dataset NCEI Accession 0309236 v1.1 was published. 2025-11-05T19:54:36Z NCEI Accession 0309236 v1.1 publication https://www.ncei.noaa.gov/archive/accession/0309236/1.1 HTTPS NCEI Accession 0309236 v1.1 published 2025-11-05T19:54:36Z download dataset Parameter or Variable: Human dietary tracers: caffeine and sucralose (measured); Units: ng/L; Observation Category: laboratory analysis; Sampling Instrument: laboratory analysis; Sampling and Analyzing Method: Discrete nearshore surface (10-25 cm) water samples (250 mL) were collected for the analysis of human dietary tracers of caffeine and sucralose. Sterile nitrile gloves were worn at all times to avoid sample contamination, and purified water was used as blank. Water samples were frozen and sent to the TDI-Brooks Laboratory for analyses. For further samping and methodological details please review the Culebra Nearshore Water Quality Monitoring Work Plan listed in this Summary Package under "References". Caffeine and Sucralose were extracted in water by Solid Phase Extraction followed by determination in water by liquid chromatography following the protocols outlined in: -Sanatsania, C. “Application Report 266: LC-MS Analysis of Sucralose and Sucrose Octacetate on Ascentis RP-Amide”, Supelco. 2005. Wu, M., Qian, Y., Boyd, J., Hrudey, S., Le, X., Li, X. “Direct large volume injection ultra-high performance liquid chromatography-tandem mass spectrometry determination of artificial sweeteners sucralose and acesulfame in well water.” Journal of Chromatography A. 2014. Batchu S, Ramirez C, Gardinali P (2015) Rapid ultra-trace analysis of sucralose in multiple-origin aqueous samples by online solid-phase extraction coupled to high-resolution mass spectrometry. Anal. Bioanal. Chem. 407 (2015), pp. 3717-3725. Wang C (2012) Assessment of the occurrence and potential effects of pharmaceuticals and personal care products in south florida waters and sediments. Florida International University Electronic Theses and Dissertations (2012), p. 689. https://digitalcommons.fiu.edu/etd/689. These protocols resulted in method detection limits (MDLs) of 2.806 and 0.984 ng/L, for caffeine and sucralose respectively.; Data Quality Method: The quality control occurred at several major stages: 1) water sample collection; 2) instrument calibration; 3) data inspection and verification, and 4) data management. Data inspection and validation quality control included both review and manual error correction steps including flagging data below the methodos' detection limits (MLDs). Water quality measurements were made implementing state-of-the-art instrumentation. Handheld GPS units were used to locate sites and mark site locations. Survey methods were consistent across dates and sites. Data gaps may originate from, but not limited to, instrument malfunction, weather conditions, and the data quality control process. asNeeded Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness. NOAA National Centers for Environmental Information custodian chromatograph chromatograph Gas, ion, liquid or other chromatograph laboratory analysis laboratory analysis use as an observation type mass spectrometer mass spectrometer Instrument that measure the massess and relative concentrations of atoms and molecules Niskin bottle Niskin bottle Device for obtaining samples of seawater at a specific depth Why special entry for Niskin bottle but no entry for Nansen bottle?