Dataset: Dissolved Trace Metals and Labile Particulate Elements from Shipboard Incubations

Name: Dissolved trace metal (Mn, Fe, Co, Ni, Cu, Zn, Cd, Pb) and labile particulate elemental (P, V, Mn, Fe, Co, Ni, Cu, Zn, Cd, Pb) concentrations from shipboard incubation experiments conducted on the 2018 EXPORTS cruise (RR1813) near Ocean Station PAPA
Published: 2023-06-06
Keywords: dissolved trace metals, EXPORTS, Ocean Station Papa, Line P, HR-ICP-MS, Berger leach, labile particulate, biogenic particulate, oceans

Cite This Dataset

DOI:10.26008/1912/bco-dmo.896884.1

Temporal Extent: 2018-08-15 - 2018-09-06

Project:

Collaborative Research: Diatoms, Food Webs and Carbon Export - Leveraging NASA EXPORTS to Test the Role of Diatom Physiology in the Biological Carbon Pump (Diatoms and carbon export)

Program:

EXport Processes in the Ocean from Remote Sensing (EXPORTS)

Principal Investigator:

Kristen Nicolle Buck (University of South Florida, USF)

Co-Principal Investigator:

Mark A. Brzezinski (University of California-Santa Barbara, UCSB-MSI)

Bethany D. Jenkins (University of Rhode Island, URI)

Student:

Shannon M. Burns (University of South Florida, USF)

Contact:

Kristen Nicolle Buck (Oregon State University, OSU)

BCO-DMO Data Manager:

Shannon Rauch (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

Version Date:

2023-06-06

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Dissolved trace metal (Mn, Fe, Co, Ni, Cu, Zn, Cd, Pb) and labile particulate elemental (P, V, Mn, Fe, Co, Ni, Cu, Zn, Cd, Pb) concentrations from shipboard incubation experiments conducted on the 2018 EXPORTS cruise (RR1813) near Ocean Station PAPA

Abstract:

This dataset includes concentrations of dissolved (<0.4 micrometers (µm)) and labile particulate (0.4-5 µm and >5 µm) phosphorus (P), vanadium (V), manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni), copper (Cu), zinc (Zn), cadmium (Cd), and lead (Pb) in shipboard incubation samples collected during the EXports Processes in the Oceans from RemoTe Sensing (EXPORTS) North Pacific (NP) cruise RR1813 on the R/V Roger Revelle near Ocean Station PAPA (Station P).

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Archival Copy

Version Date	Archive	Persistent Identifier (PID)	Date PID Issued
2023-06-06	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.26008/1912/bco-dmo.896884.1	2023-07-06

Methods & Sampling

Seawater for six shipboard incubation experiments was collected using a surface towfish (Mellett and Buck 2020) at ~2 meters (m) depth on the R/V Roger Revelle between 15 August 2018 and 29 August 2018. Water was prefiltered through a 150-µm mesh to remove large grazers. For incubations (Inc) 1-2 and 4-5, water was homogenized into 20-liter (L) carboys, and three carboys were amended for each treatment indicated in Table 1 (see Supplemental Files), yielding triplicates for each treatment and timepoint sampled. Each carboy was sampled once at the indicated timepoints. Control carboys sampled at the beginning and end of each incubation were unique to the timepoint (i.e., no carboy was resampled over time). For Incs 3 and 6, water was first homogenized into two 20-L carboys, from which 4-L bottles were filled and amended with the treatments indicated in Table 1. Three 4-L bottles were amended for each treatment, and each 4-L bottle was sampled once at the indicated timepoints, yielding triplicates.

Incubations 1 and 4 were carried out for 24 hours, Inc 2 and 3 for 6 days, and Inc 5 and 6 for 8 days (Table 1). The nutrient amendments for each experiment were selected to induce nutrient stress. For Inc 2 and Inc 5, we refer to the +20 μM nitrate +1.25 μM phosphate +20 μM silicic acid treatment as "AllButFe" and the +20 μM nitrate +1.25 μM phosphate +5 nM ⁵⁷FeCl₃ treatment as "AllButSi".

Dissolved (<0.4 μm) trace metal samples were collected in acid-cleaned 125-milliliter (mL) low-density polyethylene (LDPE, Nalgene) bottles, and acidified to 0.024 M hydrochloric acid (HCl, Fisher Optima). Dissolved trace metal (Fe, Cu, Mn, Co, Ni, Cu, Zn, Cd, Pb) concentrations were determined by high-resolution inductively coupled plasma mass spectrometry (HR-ICP-MS) at the University of South Florida (USF) on an Element XR (Hollister et al. 2020; Burns et al. 2023).

Leachable particulate trace metals were collected on 0.4-μm and 5-μm polycarbonate track etch (PCTE) filters, transferred into 1.5-mL high-density polyethylene (HDPE) snap-cap vials, and frozen at -20 degrees Celsius until processed. Filters were leached in a heated 25% acetic acid leach with a reducing step, "Berger Leach", at National High Magnetic Field Laboratory (NHMFL) to extract the leachable particulate trace metals (Berger et al. 2008). Leachable particulate elemental (P, V, Fe, Cu, Mn, Co, Ni, Cu, Zn, Cd, Pb) concentrations were determined by high-resolution inductively coupled plasma mass spectrometry (HR-ICP-MS) on an Element 2 with the assistance of Dr. Peter Morton of Florida State University (FSU).

Sample analyses for dissolved trace metals and leachable particulate trace metals were performed by Shannon Burns (USF). Detection limits and quality control results are presented in Table 2 (see Supplemental Files).

Data Processing Description

Data Processing:
Data were processed using ESI SC version 2.9.0.380.

Data Quality Flags:
The standard Ocean Data View (ODV) / SeaDataNet qualifying flags were used (reference all flags at http://vocab.nerc.ac.uk/collection/L20/current/). The notation 'na' = 'not applicable' was used for samples not analyzed.

1: Good Value: Good quality data value that is not part of any identified malfunction and has been verified as consistent with real phenomena during the quality control process. [Used when replicates were in good agreement and/or when dataset agreed with previously published results].
2: Probably Good Value: Data value that is probably consistent with real phenomena but this is unconfirmed. [Used when no replicates or published datasets to compare.]
3: Probably Bad Value: Data value recognized as unusual during quality control that forms part of a feature that is probably inconsistent with real phenomena. [Used when data not oceanographically consistent but replicate analyses agreed.]
4: Bad Value: An obviously erroneous data value. [Used when replicates did not agree].
5: Changed Value: Data value adjusted during quality control. [Not used.]
6: Value Below Detection Limit: The level of the measured phenomenon was too small to be quantified by the technique employed to measure it. Values are replaced with 'nd' for 'not detectable'. [See Table 2 for detection limits.]
7: Value in Excess: The level of the measured phenomenon was too large to be quantified by the technique employed to measure it. The accompanying value is the measurement limit for the technique. [Not used.]

BCO-DMO Processing:
- converted SAMPLE_DATE column to YYYY-MM-DD format;
- renamed fields to comply with BCO-DMO naming conventions.

Data Files

File
exports-np_tm_incubations.csv (Comma Separated Values (.csv), 28.19 KB) MD5:fff85b20767752e649af094eb18a5d44 Primary data file for dataset ID 896884.

Supplemental Files

File

Table 1
filename: Dataset_896884_Table_1.pdf

(Portable Document Format (.pdf), 465.06 KB)
MD5:b68fd442193d2338055f03cd70f35d3e

Supplemental Table 1 to dataset ID 896884. Identifies incubation treatments and sampling points.

Table 2
filename: Dataset_896884_Table_2.pdf

(Portable Document Format (.pdf), 504.65 KB)
MD5:52e423b151b847e86600e9c063e69a27

Supplemental Table 2 to dataset ID 896884.

Contains the average (Avg) concentration ± standard deviation (SD) for air (dissolved) and Milli-Q (MQ; filter) blanks, quality controls (QCs), and reference materials during dissolved and leachable particulate trace metal analyses. The limit of detection (LOD) for dissolved and leachable particulate trace analyses were determined from three times the standard deviation of the air blanks. An internal QC surface seawater sample was made from the North Pacific (NP) EXPORTS cruise in August 2018. Reference materials (SAFe S, GSP) with consensus values available on the GEOTRACES website (https://www.geotraces.org/standards-and-reference-materials/) were used. Notation ‘na’ = ‘not applicable’ was used when no value was available.

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1756433
NSF Division of Ocean Sciences	OCE-1756816
NSF Division of Ocean Sciences	OCE-1756816

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
RR1813	EXPORTS	2018-08-10	R/V Roger Revelle	Deborah K. Steinberg (Chief Scientist)	data info

Instruments

Inductively Coupled Plasma Mass Spectrometer

Supplied Name: Element XR Inductively Coupled Plasma Mass Spectrophotometer

Supplied Description:

Instrument Type

Generic Name: Inductively Coupled Plasma Mass Spectrometer

Acronym: ICP Mass Spec

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/LAB15/

Generic Description:

An ICP Mass Spec is an instrument that passes nebulized samples into an inductively-coupled gas plasma (8-10000 K) where they are atomized and ionized. Ions of specific mass-to-charge ratios are quantified in a quadrupole mass spectrometer.

Inductively Coupled Plasma Mass Spectrometer

Supplied Name: Element 2 Inductively Coupled Plasma Mass Spectrophotometer

Supplied Description:

Instrument Type

Generic Name: Inductively Coupled Plasma Mass Spectrometer

Acronym: ICP Mass Spec

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/LAB15/

Generic Description:

SeaFAST Automated Preconcentration System

Supplied Name: SeaFAST pico

Supplied Description:

Instrument Type

Generic Name: SeaFAST Automated Preconcentration System

Generic Description:

The seaFAST is an automated sample introduction system for analysis of seawater and other high matrix samples for analyses by ICPMS (Inductively Coupled Plasma Mass Spectrometry).

towed unmanned submersible

Supplied Name: surface towfish

Supplied Description:

Instrument Type

Generic Name: towed unmanned submersible

Generic Description:

A vehicle towed by rigid cable through the water column at fixed or varying depth with no propulsion and no human operator (e.g. Towfish, Scanfish, UOR, SeaSoar).

Parameters

Date and time formats are described in python strftime() syntax.

Supplied Name	Supplied description	Supplied Units	Standard Name
SAMPLE_DATE	Date when incubation sample was collected. Format: %Y-%m-%d	unitless	date
JULIAN_DAY	Day of year sampled.	unitless	julian_day
EPOCH	Assigned time block (8 or 9 days each) during the cruise, #1-3.	unitless	time_point
EPOCH_DAY	Day within the epoch time block.	unitless	time_point
INCUBATION	Incubation number, #1-6.	unitless	exp_id
TIMEPOINT	Stage of incubation, initial or final.	unitless	time_point
TREATMENT	Nutrient amendment; see Table 1 (Supplemental File)	unitless	treatment
REPLICATE	Incubations were conducted with triplicate bottles or carboys per treatment. Carboy (20-liters) or bottle (4-liters), #1-3.	unitless	replicate
Mn_D_CONC	Concentration of dissolved manganese (Mn).	nanomoles per liter (nM)	Mn
Mn_D_CONC_STDEV	Standard deviation of replicate analyses of this sample, or difference about the mean if n=2. When no replicate analyses were performed, the notation 'na' = 'not applicable' was used.	nanomoles per liter (nM)	Mn
Mn_D_CONC_n	Number of times this sample was analyzed.	unitless	number
Mn_D_CONC_Flag	Ocean Data View quality flag (see Processing Description for definitions) for Mn_D_CONC.	unitless	q_flag
Fe_D_CONC	Concentration of total dissolved iron (Fe) in a sample. NOTE: Dissolved Fe concentrations in the incubations were higher than the towfish surface samples collected during incubation initiation. These samples were likely contaminated during incubation setup or sampling and are accompanied by Flag 3.	nanomoles per liter (nM)	Fe
Fe_D_CONC_STDEV	Standard deviation of replicate analyses of this sample, or difference about the mean if n=2. When no replicate analyses were performed, the notation 'na' = 'not applicable' was used.	nanomoles per liter (nM)	Fe
Fe_D_CONC_n	Number of times this sample was analyzed.	unitless	number
Fe_D_CONC_Flag	Ocean Data View quality flag (see Processing Description for definitions) for Fe_D_CONC.	unitless	q_flag
ADD_Fe57_D_CONC	Concentration of added Fe-57 in a sample. In the treatments where no 57Fe was added, the notation 'na' = 'not applicable' was used.	nanomoles per liter (nM)	Fe
ADD_Fe57_D_CONC_STDEV	Standard deviation of replicate analyses of this sample, or difference about the mean if n=2. When no replicate analyses were performed, the notation 'na' = 'not applicable' was used.	nanomoles per liter (nM)	Fe
ADD_Fe57_D_CONC_n	Number of times this sample was analyzed.	unitless	number
ADD_Fe57_D_CONC_flag	Ocean Data View quality flag (see Processing Description for definitions) for ADD_Fe57_D_CONC.	unitless	q_flag
Co_D_CONC	Concentration of dissolved cobalt (Co).	picomoles per liter (pM)	Co
Co_D_CONC_STDEV	Standard deviation of replicate analyses of this sample, or difference about the mean if n=2. When no replicate analyses were performed, the notation 'na' = 'not applicable' was used.	picomoles per liter (pM)	Co
Co_D_CONC_n	Number of times this sample was analyzed.	unitless	number
Co_D_CONC_flag	Ocean Data View quality flag (see Processing Description for definitions) for Co_D_CONC.	unitless	q_flag
Ni_D_CONC	Concentration of dissolved nickel (Ni).	nanomoles per liter (nM)	Ni
Ni_D_CONC_STDEV	Standard deviation of replicate analyses of this sample, or difference about the mean if n=2. When no replicate analyses were performed, the notation 'na' = 'not applicable' was used.	nanomoles per liter (nM)	Ni
Ni_D_CONC_n	Number of times this sample was analyzed.	unitless	number
Ni_D_CONC_flag	Ocean Data View quality flag (see Processing Description for definitions) for Ni_D_CONC.	unitless	q_flag
Cu_D_CONC	Concentration of dissolved copper (Cu).	nanomoles per liter (nM)	Cu
Cu_D_CONC_STDEV	Standard deviation of replicate analyses of this sample, or difference about the mean if n=2. When no replicate analyses were performed, the notation 'na' = 'not applicable' was used.	nanomoles per liter (nM)	Cu
Cu_D_CONC_n	Number of times this sample was analyzed.	unitless	number
Cu_D_CONC_flag	Ocean Data View quality flag (see Processing Description for definitions) for Cu_D_CONC.	unitless	q_flag
Zn_D_CONC	Concentration of dissolved zinc (Zn). NOTE: Dissolved Zn concentrations in the incubations were higher than the towfish surface samples collected during incubation initiation. These samples were likely contaminated during incubation setup or sampling and are accompanied by Flag 3.	nanomoles per liter (nM)	Zn
Zn_D_CONC_STDEV	Standard deviation of replicate analyses of this sample, or difference about the mean if n=2. When no replicate analyses were performed, the notation 'na' = 'not applicable' was used.	nanomoles per liter (nM)	Zn
Zn_D_CONC_n	Number of times this sample was analyzed.	unitless	number
Zn_D_CONC_flag	Ocean Data View quality flag (see Processing Description for definitions) for Zn_D_CONC.	unitless	q_flag
Cd_D_CONC	Concentration of dissolved cadmium (Cd).	picomoles per liter (pM)	Cd
Cd_D_CONC_STDEV	Standard deviation of replicate analyses of this sample, or difference about the mean if n=2. When no replicate analyses were performed, the notation 'na' = 'not applicable' was used.	picomoles per liter (pM)	Cd
Cd_D_CONC_n	Number of times this sample was analyzed.	unitless	number
Cd_D_CONC_flag	Ocean Data View quality flag (see Processing Description for definitions) for Cd_D_CONC.	unitless	q_flag
Pb_D_CONC	Concentration of dissolved lead (Pb).	picomoles per liter (pM)	Pb
Pb_D_CONC_STDEV	Standard deviation of replicate analyses of this sample, or difference about the mean if n=2. When no replicate analyses were performed, the notation 'na' = 'not applicable' was used.	picomoles per liter (pM)	Pb
Pb_D_CONC_n	Number of times this sample was analyzed.	unitless	number
Pb_D_CONC_flag	Ocean Data View quality flag (see Processing Description for definitions) for Pb_D_CONC.	unitless	q_flag
P_SLP_CONC	Concentration of small leachable particulate (SLP; 0.4-5 micrometer (um) size fraction) phosphorus (P). The notation 'na' = 'not applicable' was used for samples not analyzed.	nanomoles per liter (nM)	P
P_SLP_CONC_Flag	Ocean Data View quality flag (see Processing Description for definitions) for P_SLP_CONC.	unitless	q_flag
V_SLP_CONC	Concentration of small leachable particulate (SLP; 0.4-5 micrometer (um) size fraction) vanadium (V). The notation 'na' = 'not applicable' was used for samples not analyzed. Values below the limit of detection [see Table 2 for detection limits] are replaced with 'nd' for 'not detectable' and accompanied by Flag 6 in the dataset.	nanomoles per liter (nM)	V
V_SLP_CONC_Flag	Ocean Data View quality flag (see Processing Description for definitions) for V_SLP_CONC.	unitless	q_flag
Mn_SLP_CONC	Concentration of small leachable particulate (SLP; 0.4-5 micrometer (um) size fraction) manganese (Mn). The notation 'na' = 'not applicable' was used for samples not analyzed. Values below the limit of detection [see Table 2 for detection limits] are replaced with 'nd' for 'not detectable' and accompanied by Flag 6 in the dataset.	nanomoles per liter (nM)	Mn
Mn_SLP_CONC_Flag	Ocean Data View quality flag (see Processing Description for definitions) for Mn_SLP_CONC.	unitless	q_flag
Fe_SLP_CONC	Concentration of small leachable particulate (SLP; 0.4-5 micrometer (um) size fraction) iron (Fe). The notation 'na' = 'not applicable' was used for samples not analyzed. Values below the limit of detection [see Table 2 for detection limits] are replaced with 'nd' for 'not detectable' and accompanied by Flag 6 in the dataset.	nanomoles per liter (nM)	Fe
Fe_SLP_CONC_Flag	Ocean Data View quality flag (see Processing Description for definitions) for Fe_SLP_CONC.	unitless	q_flag
ADD_Fe57_SLP_CONC	Concentration of small leachable particulate (SLP; 0.4-5 micrometer (um) size fraction) added iron-57 (Fe57). In the treatments where no 57Fe was added, the notation 'na' = 'not applicable' was used. The notation 'na' = 'not applicable' was also used for samples not analyzed. Values below the limit of detection [see Table 2 for detection limits] are replaced with 'nd' for 'not detectable' and accompanied by Flag 6 in the dataset.	nanomoles per liter (nM)	Fe
ADD_Fe57_SLP_CONC_flag	Ocean Data View quality flag (see Processing Description for definitions) for ADD_Fe57_SLP_CONC.	unitless	q_flag
Co_SLP_CONC	Concentration of small leachable particulate (SLP; 0.4-5 micrometer (um) size fraction) cobalt (Co). The 'na' = 'not applicable' was used for samples not analyzed.	picomoles per liter (pM)	Co
Co_SLP_CONC_flag	Ocean Data View quality flag (see Processing Description for definitions) for Co_SLP_CONC.	unitless	q_flag
Ni_SLP_CONC	Concentration of small leachable particulate (SLP; 0.4-5 micrometer (um) size fraction) nickel (Ni). The 'na' = 'not applicable' was used for samples not analyzed.	nanomoles per liter (nM)	Ni
Ni_SLP_CONC_flag	Data quality flag for	unitless	q_flag
Cu_SLP_CONC	Concentration of small leachable particulate (SLP; 0.4-5 micrometer (um) size fraction) copper (Cu). The notation 'na' = 'not applicable' was used for samples not analyzed.	nanomoles per liter (nM)	Cu
Cu_SLP_CONC_flag	Ocean Data View quality flag (see Processing Description for definitions) for Cu_SLP_CONC.	unitless	q_flag
Zn_SLP_CONC	Concentration of small leachable particulate (SLP; 0.4-5 micrometer (um) size fraction) zinc (Zn). The notation 'na' = 'not applicable' was used for samples not analyzed. Values below the limit of detection [see Table 2 for detection limits] are replaced with 'nd' for 'not detectable' and accompanied by Flag 6 in the dataset.	nanomoles per liter (nM)	Zn
Zn_SLP_CONC_flag	Ocean Data View quality flag (see Processing Description for definitions) for Zn_SLP_CONC.	unitless	q_flag
Cd_SLP_CONC	Concentration of small leachable particulate (SLP; 0.4-5 micrometer (um) size fraction) cadmium (Cd). The notation 'na' = 'not applicable' was used for samples not analyzed. Values below the limit of detection [see Table 2 for detection limits] are replaced with 'nd' for 'not detectable' and accompanied by Flag 6 in the dataset.	picomoles per liter (pM)	Cd
Cd_SLP_CONC_flag	Ocean Data View quality flag (see Processing Description for definitions) for Cd_SLP_CONC.	unitless	q_flag
Pb_SLP_CONC	Concentration of small leachable particulate (SLP; 0.4-5 micrometer (um) size fraction) lead (Pb). The notation 'na' = 'not applicable' was used for samples not analyzed. Values below the limit of detection [see Table 2 for detection limits] are replaced with 'nd' for 'not detectable' and accompanied by Flag 6 in the dataset.	picomoles per liter (pM)	Pb
Pb_SLP_CONC_flag	Ocean Data View quality flag (see Processing Description for definitions) for P_SLP_CONC.	unitless	q_flag
P_LLP_CONC	Concentration of large leachable particulate (LLP; >5 micrometers (um) size fraction) phosphorus (P). The notation 'na' = 'not applicable' was used for samples not analyzed. Values below the limit of detection [see Table 2 for detection limits] are replaced with 'nd' for 'not detectable' and accompanied by Flag 6 in the dataset.	nanomoles per liter (nM)	P
P_LLP_CONC_Flag	Ocean Data View quality flag (see Processing Description for definitions) for P_LLP_CONC.	unitless	q_flag
V_LLP_CONC	Concentration of large leachable particulate (LLP; >5 micrometers (um) size fraction) vanadium (V). The notation 'na' = 'not applicable' was used for samples not analyzed. Values below the limit of detection [see Table 2 for detection limits] are replaced with 'nd' for 'not detectable' and accompanied by Flag 6 in the dataset.	nanomoles per liter (nM)	V
V_LLP_CONC_Flag	Ocean Data View quality flag (see Processing Description for definitions) for	unitless	q_flag
Mn_LLP_CONC	Concentration of large leachable particulate (LLP; >5 micrometers (um) size fraction) manganese (Mn). The notation 'na' = 'not applicable' was used for samples not analyzed. Values below the limit of detection [see Table 2 for detection limits] are replaced with 'nd' for 'not detectable' and accompanied by Flag 6 in the dataset.	nanomoles per liter (nM)	Mn
Mn_LLP_CONC_Flag	Ocean Data View quality flag (see Processing Description for definitions) for Mn_LLP_CONC.	unitless	q_flag
Fe_LLP_CONC	Concentration of large leachable particulate (LLP; >5 micrometers (um) size fraction) iron (Fe). The notation 'na' = 'not applicable' was used for samples not analyzed. Values below the limit of detection [see Table 2 for detection limits] are replaced with 'nd' for 'not detectable' and accompanied by Flag 6 in the dataset.	nanomoles per liter (nM)	Fe
Fe_LLP_CONC_Flag	Ocean Data View quality flag (see Processing Description for definitions) for Mn_LLP_CONC.	unitless	q_flag
ADD_Fe57_LLP_CONC	Concentration of large leachable particulate (LLP; >5 micrometers (um) size fraction) added iron-57 (Fe57). In the treatments where no 57Fe was added, the notation 'na' = 'not applicable' was used. The notation 'na' = 'not applicable' was also used for samples not analyzed. Values below the limit of detection [see Table 2 for detection limits] are replaced with 'nd' for 'not detectable' and accompanied by Flag 6 in the dataset.	nanomoles per liter (nM)	Fe
ADD_Fe57_LLP_CONC_flag	Ocean Data View quality flag (see Processing Description for definitions) for ADD_Fe57_LLP_CONC.	unitless	q_flag
Co_LLP_CONC	Concentration of large leachable particulate (LLP; >5 micrometers (um) size fraction) cobalt (Co). The notation 'na' = 'not applicable' was used for samples not analyzed. Values below the limit of detection [see Table 2 for detection limits] are replaced with 'nd' for 'not detectable' and accompanied by Flag 6 in the dataset.	picomoles per liter (pM)	Co
Co_LLP_CONC_flag	Ocean Data View quality flag (see Processing Description for definitions) for Co_LLP_CONC.	unitless	q_flag
Ni_LLP_CONC	Concentration of large leachable particulate (LLP; >5 micrometers (um) size fraction) nickel (Ni). The notation 'na' = 'not applicable' was used for samples not analyzed. Values below the limit of detection [see Table 2 for detection limits] are replaced with 'nd' for 'not detectable' and accompanied by Flag 6 in the dataset.	nanomoles per liter (nM)	Ni
Ni_LLP_CONC_flag	Ocean Data View quality flag (see Processing Description for definitions) for Ni_LLP_CONC.	unitless	q_flag
Cu_LLP_CONC	Concentration of large leachable particulate (LLP; >5 micrometers (um) size fraction) copper (Cu). The notation 'na' = 'not applicable' was used for samples not analyzed. Values below the limit of detection [see Table 2 for detection limits] are replaced with 'nd' for 'not detectable' and accompanied by Flag 6 in the dataset.	nanomoles per liter (nM)	Cu
Cu_LLP_CONC_flag	Ocean Data View quality flag (see Processing Description for definitions) for Cu_LLP_CONC.	unitless	q_flag
Zn_LLP_CONC	Concentration of large leachable particulate (LLP; >5 micrometers (um) size fraction) zinc (Zn). The notation 'na' = 'not applicable' was used for samples not analyzed. Values below the limit of detection [see Table 2 for detection limits] are replaced with 'nd' for 'not detectable' and accompanied by Flag 6 in the dataset.	nanomoles per liter (nM)	Zn
Zn_LLP_CONC_flag	Ocean Data View quality flag (see Processing Description for definitions) for Zn_LLP_CONC.	unitless	q_flag
Cd_LLP_CONC	Concentration of large leachable particulate (LLP; >5 micrometers (um) size fraction) cadmium (Cd). The notation 'na' = 'not applicable' was used for samples not analyzed. Values below the limit of detection [see Table 2 for detection limits] are replaced with 'nd' for 'not detectable' and accompanied by Flag 6 in the dataset.	picomoles per liter (pM)	Cd
Cd_LLP_CONC_flag	Ocean Data View quality flag (see Processing Description for definitions) for Cd_LLP_CONC.	unitless	q_flag
Pb_LLP_CONC	Concentration of large leachable particulate (LLP; >5 micrometers (um) size fraction) lead (Pb). The notation 'na' = 'not applicable' was used for samples not analyzed. Values below the limit of detection [see Table 2 for detection limits] are replaced with 'nd' for 'not detectable' and accompanied by Flag 6 in the dataset.	picomoles per liter (pM)	Pb
Pb_LLP_CONC_flag	Ocean Data View quality flag (see Processing Description for definitions) for Pb_LLP_CONC.	unitless	q_flag

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Dataset: Dissolved Trace Metals and Labile Particulate Elements from Shipboard Incubations