Organic contaminant measurements of the water samples collected from West Florida Shelf onboard R/V Hogarth and R/V Weatherbird II (2022–2023), following Hurricane Ian
Version: 1
Version Date: 2025-12-11
Abstract
This dataset includes a comprehensive suite of water-quality parameters, including alkalinity, organic alkalinity, dissolved inorganic carbon (DIC), short-lived radium isotopes (223Ra and 224Ra), stable isotopes (^13C and ^15N), dissolved organic carbon, and a broad range of organic contaminants (PAHs, alkanes, organochlorides, thiolates, PCBs, insecticides, pesticides, and herbicides). Samples were collected aboard the R/V Hogarth and R/V Weatherbird II during cruises in October 2022, January 2023, and March 2023 as part of the NSF RAPID (OCE-2309659) project following Hurricane Ian.
Location: Southwest Florida Shelf
Spatial Extent: N:27.44205 E:-81.74894 S:25.89909 W:-82.71008
Temporal Extent: 2022-10-18 - 2023-10-23
Water samples were collected using a CTD rosette and processed for the analysis of organic contaminants following standard EPA protocols and previously published methods (Adhikari et al., 2017, 2019; Romero, 2018). Physicochemical parameters were measured with a YSI EXO II multiparameter water-quality sonde (SKU#: 599502-02) attached to the ship’s CTD rosette. The samples collected in Niskin bottles were filtered onto pre-baked GFF filters (0.7 µm), and the filters were stored frozen for particulate organic contaminant analysis. The samples were solvent-extracted and analyzed at the University of South Florida (using modified EPA methods; Romero, 2018) with Gas Chromatography Triple Quadrupole Mass Spectrometry (GC-MS/MS).
Adhikari, P. L., Wong, R. L., & Overton, E. B. (2017). Application of enhanced gas chromatography/triple quadrupole mass spectrometry for monitoring petroleum weathering and forensic source fingerprinting in samples impacted by the Deepwater Horizon oil spill. Chemosphere, 184, 939–950. https://doi.org/10.1016/j.chemosphere.2017.06.077
Methods
Romero, I. C. (2018). A High-Throughput Method (ASE-GC/MS/MS/MRM) for Quantification of Multiple Hydrocarbon Compounds in Marine Environmental Samples. Marine Technology Society Journal, 52(6), 66–70. https://doi.org/10.4031/mtsj.52.6.6
Methods
IsRelatedTo
Adhikari, P., Romero, I. C., Chen, H. (2025) Physicochemical parameters, nutrients, radium and stable Isotopes, carbonate chemistry & organic alkalinity measurements from the West Florida Shelf, collected onboard R/V Hogarth and R/V Weatherbird II (2022–2023), following Hurricane Ian. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2025-12-11 http://lod.bco-dmo.org/id/dataset/990457 [view at BCO-DMO]
Parameters for this dataset have not yet been identified
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