http://lod.bco-dmo.org/id/dataset/986789
eng; USA
utf8
dataset
Highest level of data collection, from a common set of sensors or instrumentation, usually within the same research project
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
2025-10-13
ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
ISO 19115-2:2009(E)
Weekly integrated bulk total aerosol trace element concentrations from the Hawaii Aerosol Time-series during January 2022 to October 2023
2025-12-03
publication
2025-12-03
revision
Woods Hole Oceanographic Institution (WHOI BCO-DMO)
2025-12-04
publication
https://doi.org/10.26008/1912/bco-dmo.986789.1
Clifton S. Buck
Skidaway Institute of Oceanography
principalInvestigator
Christopher Marsay
Skidaway Institute of Oceanography
principalInvestigator
Daniel C. Ohnemus
Skidaway Institute of Oceanography
principalInvestigator
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
publisher
Cite this dataset as: Buck, C. S., Ohnemus, D. C., Marsay, C., Kollman, C. (2025) Weekly integrated bulk total aerosol trace element concentrations from the Hawaii Aerosol Time-series during January 2022 to October 2023. Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2025-12-03 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.986789.1 [access date]
HATS Total Aerosols Dataset Description: Methods and Sampling: <p>A high-volume total suspended particle aerosol sampler (Tisch Environmental TE-5170V-BL), installed at Makai Research Pier (21.32° N, 157.67° W) on the eastern side of O'ahu, collected weekly-integrated bulk aerosol samples from January 2022 to October 2023. Makai Research Pier experiences regular northeasterly winds, which were isolated with a sector-control system that powered the sampler during onshore wind conditions at a velocity &gt;0.5 meters per second (m/s). The sampler was fitted with a GEOTRACES-style, custom-made manifold holding 12 acid-washed, 47-millimeter (mm) diameter Whatman-41 filters (e.g. Buck et al., 2019). Filters were acid washed before use to reduce trace element blanks. Sample filters were stored individually in plastic Petri slides at -20 degrees Celsius (°C) until transport to Skidaway Institute of Oceanography for processing and analysis.</p>
<p>Of the 12 filters collected with the aerosol sampler, three filters were reserved for total digestion. The digestion procedure is a three-step process (full details described in Marsay et al., 2022) where the samples were sequentially acidified with concentrated double-distilled nitric acid (d-HNO<sub>3</sub>), hydrofluoric acid (Fisher Trace Metal Grade; HF), and hydrogen peroxide (Fisher Optima Grade; H<sub>2</sub>O<sub>2</sub>), heated to ~140 °C on a hotplate overnight, and then taken to near dryness. A known volume of Rh was added to the first acid-addition step to account for any potential loss of material over the course of the digestion process. Following the final dry-down, samples were brought up in 0.32 M optima HNO<sub>3</sub> and then analyzed for a mix of primarily lithogenic and anthropogenically associated trace elements (including Al, Co, Cr, Cu, Fe, Mn, Ni, Pb, Ti, V, and Zn) via quadrupole ICP-MS (Perkin Elmer Nexion 300D). The instrument was operated in standard mode for Al and Ti and reaction gas mode (NH<sub>3</sub>) for the remaining elements to reduce polyatomic interferences. The Standard Reference Material NIST 1643f was analyzed with the analytical run to evaluate instrument performance. Filter blanks were digested, analyzed, and subtracted from sample values to correct for any external contributions, while reference materials (Arizona Test Dust and MESS-3) were also processed and analyzed to assess the efficiency of the digestion procedure. Finally, the bulk trace element aerosol concentrations were normalized by dividing the filter concentrations by the volume of air sampled during each respective deployment.</p>
Funding provided by NSF Division of Ocean Sciences (NSF OCE) Award Number: OCE-1949660 Award URL: https://www.nsf.gov/awardsearch/show-award?AWD_ID=1949660
completed
Clifton S. Buck
Skidaway Institute of Oceanography
912-598-2418
Skidaway Institute of Oceanography 10 Ocean Science Circle
Savannah
GA
31411
USA
csbuck@uga.edu
pointOfContact
Christopher Marsay
Skidaway Institute of Oceanography
DE
USA
cmarsay@udel.edu
pointOfContact
Daniel C. Ohnemus
Skidaway Institute of Oceanography
912-598-2414
10 Ocean Science Circle
Savannah
GA
31411
USA
dan@uga.edu
pointOfContact
asNeeded
Dataset Version: 1
Unknown
Deployment
Latitude
Longitude
Julian_Day
Start_ISO_DateTime_UTC
Start_Day
Start_Month
Start_Year
Start_Time_UTC
End_ISO_DateTime_UTC
End_Day
End_Month
End_Year
End_Time_UTC
Air_Vol_Total
Al_A_T_AVG_HIVOL
Al_A_T_STDEV_HIVOL
Al_A_T_QF_HIVOL
Ti_A_T_AVG_HIVOL
Ti_A_T_STDEV_HIVOL
Ti_A_T_QF_HIVOL
V_A_T_AVG_HIVOL
V_A_T_STDEV_HIVOL
V_A_T_QF_HIVOL
Cr_A_T_AVG_HIVOL
Cr_A_T_STDEV_HIVOL
Cr_A_T_QF_HIVOL
Mn_A_T_AVG_HIVOL
Mn_A_T_STDEV_HIVOL
Mn_A_T_QF_HIVOL
Fe_A_T_AVG_HIVOL
Fe_A_T_STDEV_HIVOL
Fe_A_T_QF_HIVOL
Co_A_T_AVG_HIVOL
Co_A_T_STDEV_HIVOL
Co_A_T_QF_HIVOL
Ni_A_T_AVG_HIVOL
Ni_A_T_STDEV_HIVOL
Ni_A_T_QF_HIVOL
Cu_A_T_AVG_HIVOL
Cu_A_T_STDEV_HIVOL
Cu_A_T_QF_HIVOL
Zn_A_T_AVG_HIVOL
Zn_A_T_STDEV_HIVOL
Zn_A_T_QF_HIVOL
Pb_A_T_AVG_HIVOL
Pb_A_T_STDEV_HIVOL
Pb_A_T_QF_HIVOL
Tisch Environmental TE-5170V-BL
Perkin Elmer Nexion 300d
theme
None, User defined
deployment number
latitude
longitude
Julian day as a decimal (time elapsed in days from 00:00 on January 1st 4713 BC)
ISO_DateTime_UTC
day of month
month of year
year
time of day
sample_volume
metal concentration in atmosphere
quality flag
featureType
BCO-DMO Standard Parameters
Aerosol Sampler
Inductively Coupled Plasma Mass Spectrometer
instrument
BCO-DMO Standard Instruments
otherRestrictions
otherRestrictions
Access Constraints: none. Use Constraints: Please follow guidelines at: http://www.bco-dmo.org/terms-use Distribution liability: Under no circumstances shall BCO-DMO be liable for any direct, incidental, special, consequential, indirect, or punitive damages that result from the use of, or the inability to use, the materials in this data submission. If you are dissatisfied with any materials in this data submission your sole and exclusive remedy is to discontinue use.
Hawaii Aerosol Time-Series (HATS): Quantifying Marine Dust Deposition and Composition in an Oligotrophic Gyre
https://osprey.bco-dmo.org/project/907149
Hawaii Aerosol Time-Series (HATS): Quantifying Marine Dust Deposition and Composition in an Oligotrophic Gyre
<p><strong>NSF Award Abstract:</strong><br />
The chemistry of the ocean can be changed by the introduction and removal of elements, including trace elements which are present at low concentrations. In some cases, these elements are known to be vital to biological processes and ocean food webs. Near the shore, rivers are a large source for material from land to the ocean. Beyond the reach of rivers, and for most of the oceans, material blown from land through the air is the largest source of trace elements to surface waters. This material enters the oceans dissolved in rain or by settling of dust particles. Understanding atmospheric sources of trace elements to the oceans is thus important to understanding both global chemical cycles and patterns of biological production. This project will sample the atmosphere and the surface ocean near Hawaii over two years to gain a deeper understanding of the sources and fates of trace metals in the ocean. The study will examine how particles from the atmosphere interact with the surrounding water as they sink through the ocean. The project will contribute to global synthesis and modeling efforts. It will directly support graduate and undergraduate students. Results of the project and their relevance will be communicated to the public through campus open house events and a public lecture series.</p>
<p>The processes that supply and remove trace elements in the ocean are ongoing areas of research. An important focus is on understanding the sources and fate of aerosol trace elements deposited to the ocean as this represents a major source of micronutrients and contaminants into the open ocean. Field observations of wet and dry atmospheric inputs are limited in number, and few methods are available to transform readily measured aerosol trace element concentrations into deposition fluxes. Thus, atmospheric fluxes of trace elements to most ocean regions remain poorly constrained and their impact on ocean biochemical cycles, including the marine carbon cycle, are uncertain. Directly quantifying atmospheric fluxes of key trace elements to the ocean and identifying their fates and chemical transformations after deposition are critical areas of continued investigation and are included, for example, as a core component of the GEOTRACES program. Similarly, aerosol fractional solubility and the flux of bioavailable trace elements is not well understood. There is a corresponding need to test and improve estimates of total dust deposition fluxes alongside simultaneous observations of particle composition in the open ocean. This project will address these needs through a two-year land-based sampling effort and six seasonal cruises aimed at three tasks. (1) Use the deposition flux of beryllium-7 measured from aerosols, precipitation, and the upper ocean inventory to directly estimate dust and aerosol trace element fluxes to the Hawaii Ocean Time-series Station Aloha, a representative and remote oligotrophic site. This region is characterized by a predictable seasonal variability in dust concentrations and precipitation and is an exceptionally applicable region for testing the limits of dust deposition techniques by observing seasonal variability in ocean-atmosphere coupling over a multi-year cycle. (2) Explore the extent to which seasonal variations in aerosol trace element flux to the surface of the North Pacific, and mineralogy of that input drive variability in the composition and inventories of marine particles. (3) Investigate the extent to which the fractional solubility of aerosol trace elements collected over the North Pacific shows temporal variability and calculate flux rates of soluble aerosol trace elements. The study will advance understanding of dust and soluble aerosol trace element flux from the atmosphere to the ocean and link that flux to upper ocean particle inventory, mineralogy, and chemical composition.</p>
<p>This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.</p>
HATS
largerWorkCitation
project
eng; USA
oceans
-157.67
-157.67
21.32
21.32
2022-01-06
2023-10-26
Hawaii
0
BCO-DMO catalogue of parameters from Weekly integrated bulk total aerosol trace element concentrations from the Hawaii Aerosol Time-series during January 2022 to October 2023
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
http://lod.bco-dmo.org/id/dataset-parameter/989924.rdf
Name: Deployment
Units: unitless
Description: <p>Aerosol deployment number</p>
http://lod.bco-dmo.org/id/dataset-parameter/989925.rdf
Name: Latitude
Units: decimal degrees
Description: <p>Latitude of sampler location</p>
http://lod.bco-dmo.org/id/dataset-parameter/989926.rdf
Name: Longitude
Units: decimal degrees
Description: <p>Longitude of sampler location</p>
http://lod.bco-dmo.org/id/dataset-parameter/989927.rdf
Name: Julian_Day
Units: unitless
Description: <p>Sampling start Julian day</p>
http://lod.bco-dmo.org/id/dataset-parameter/989928.rdf
Name: Start_ISO_DateTime_UTC
Units: unitless
Description: <p>Date and time (UTC) of sampling start in ISO 8601 format</p>
http://lod.bco-dmo.org/id/dataset-parameter/989929.rdf
Name: Start_Day
Units: unitless
Description: <p>Sampling start day</p>
http://lod.bco-dmo.org/id/dataset-parameter/989930.rdf
Name: Start_Month
Units: unitless
Description: <p>Sampling start month</p>
http://lod.bco-dmo.org/id/dataset-parameter/989931.rdf
Name: Start_Year
Units: unitless
Description: <p>Sampling start year</p>
http://lod.bco-dmo.org/id/dataset-parameter/989932.rdf
Name: Start_Time_UTC
Units: unitless
Description: <p>Sampling start time (UTC)</p>
http://lod.bco-dmo.org/id/dataset-parameter/989933.rdf
Name: End_ISO_DateTime_UTC
Units: unitless
Description: <p>Date and time (UTC) of sampling end in ISO 8601 format</p>
http://lod.bco-dmo.org/id/dataset-parameter/989934.rdf
Name: End_Day
Units: unitless
Description: <p>Sampling end day</p>
http://lod.bco-dmo.org/id/dataset-parameter/989935.rdf
Name: End_Month
Units: unitless
Description: <p>Sampling end month</p>
http://lod.bco-dmo.org/id/dataset-parameter/989936.rdf
Name: End_Year
Units: unitless
Description: <p>Sampling end year</p>
http://lod.bco-dmo.org/id/dataset-parameter/989937.rdf
Name: End_Time_UTC
Units: unitless
Description: <p>Sampling end time (UTC)</p>
http://lod.bco-dmo.org/id/dataset-parameter/989938.rdf
Name: Air_Vol_Total
Units: cubic meters (m3)
Description: <p>Total volume of air sampled</p>
http://lod.bco-dmo.org/id/dataset-parameter/989939.rdf
Name: Al_A_T_AVG_HIVOL
Units: picomoles per cubic meter (pmol/m3)
Description: <p>Total particulate aerosol Al concentration, average. Detection limit = 9.4</p>
http://lod.bco-dmo.org/id/dataset-parameter/989940.rdf
Name: Al_A_T_STDEV_HIVOL
Units: picomoles per cubic meter (pmol/m3)
Description: <p>Total particulate aerosol Al concentration, standard deviation</p>
http://lod.bco-dmo.org/id/dataset-parameter/989941.rdf
Name: Al_A_T_QF_HIVOL
Units: picomoles per cubic meter (pmol/m3)
Description: <p>Total particulate aerosol Al concentration, data quality flag (see metadata for definitions)</p>
http://lod.bco-dmo.org/id/dataset-parameter/989942.rdf
Name: Ti_A_T_AVG_HIVOL
Units: picomoles per cubic meter (pmol/m3)
Description: <p>Total particulate aerosol Ti concentration, average. Detection limit = 2.8</p>
http://lod.bco-dmo.org/id/dataset-parameter/989943.rdf
Name: Ti_A_T_STDEV_HIVOL
Units: picomoles per cubic meter (pmol/m3)
Description: <p>Total particulate aerosol Ti concentration, standard deviation</p>
http://lod.bco-dmo.org/id/dataset-parameter/989944.rdf
Name: Ti_A_T_QF_HIVOL
Units: picomoles per cubic meter (pmol/m3)
Description: <p>Total particulate aerosol Ti concentration, data quality flag (see metadata for definitions)</p>
http://lod.bco-dmo.org/id/dataset-parameter/989945.rdf
Name: V_A_T_AVG_HIVOL
Units: picomoles per cubic meter (pmol/m3)
Description: <p>Total particulate aerosol V concentration, average. Detection limit = 0.19</p>
http://lod.bco-dmo.org/id/dataset-parameter/989946.rdf
Name: V_A_T_STDEV_HIVOL
Units: picomoles per cubic meter (pmol/m3)
Description: <p>Total particulate aerosol V concentration, standard deviation</p>
http://lod.bco-dmo.org/id/dataset-parameter/989947.rdf
Name: V_A_T_QF_HIVOL
Units: picomoles per cubic meter (pmol/m3)
Description: <p>Total particulate aerosol V concentration, data quality flag (see metadata for definitions)</p>
http://lod.bco-dmo.org/id/dataset-parameter/989948.rdf
Name: Cr_A_T_AVG_HIVOL
Units: picomoles per cubic meter (pmol/m3)
Description: <p>Total particulate aerosol Cr concentration, average. Detection limit = 0.36</p>
http://lod.bco-dmo.org/id/dataset-parameter/989949.rdf
Name: Cr_A_T_STDEV_HIVOL
Units: picomoles per cubic meter (pmol/m3)
Description: <p>Total particulate aerosol Cr concentration, standard deviation</p>
http://lod.bco-dmo.org/id/dataset-parameter/989950.rdf
Name: Cr_A_T_QF_HIVOL
Units: picomoles per cubic meter (pmol/m3)
Description: <p>Total particulate aerosol Cr concentration, data quality flag (see metadata for definitions)</p>
http://lod.bco-dmo.org/id/dataset-parameter/989951.rdf
Name: Mn_A_T_AVG_HIVOL
Units: picomoles per cubic meter (pmol/m3)
Description: <p>Total particulate aerosol Mn concentration, average. Detection limit = 0.03</p>
http://lod.bco-dmo.org/id/dataset-parameter/989952.rdf
Name: Mn_A_T_STDEV_HIVOL
Units: picomoles per cubic meter (pmol/m3)
Description: <p>Total particulate aerosol Mn concentration, standard deviation</p>
http://lod.bco-dmo.org/id/dataset-parameter/989953.rdf
Name: Mn_A_T_QF_HIVOL
Units: picomoles per cubic meter (pmol/m3)
Description: <p>Total particulate aerosol Mn concentration, data quality flag (see metadata for definitions)</p>
http://lod.bco-dmo.org/id/dataset-parameter/989954.rdf
Name: Fe_A_T_AVG_HIVOL
Units: picomoles per cubic meter (pmol/m3)
Description: <p>Total particulate aerosol Fe concentration, average. Detection limit = 2</p>
http://lod.bco-dmo.org/id/dataset-parameter/989955.rdf
Name: Fe_A_T_STDEV_HIVOL
Units: picomoles per cubic meter (pmol/m3)
Description: <p>Total particulate aerosol Fe concentration, standard deviation</p>
http://lod.bco-dmo.org/id/dataset-parameter/989956.rdf
Name: Fe_A_T_QF_HIVOL
Units: picomoles per cubic meter (pmol/m3)
Description: <p>Total particulate aerosol Fe concentration, data quality flag (see metadata for definitions)</p>
http://lod.bco-dmo.org/id/dataset-parameter/989957.rdf
Name: Co_A_T_AVG_HIVOL
Units: picomoles per cubic meter (pmol/m3)
Description: <p>Total particulate aerosol Co concentration, average. Detection limit = 0.035</p>
http://lod.bco-dmo.org/id/dataset-parameter/989958.rdf
Name: Co_A_T_STDEV_HIVOL
Units: picomoles per cubic meter (pmol/m3)
Description: <p>Total particulate aerosol Co concentration, standard deviation</p>
http://lod.bco-dmo.org/id/dataset-parameter/989959.rdf
Name: Co_A_T_QF_HIVOL
Units: picomoles per cubic meter (pmol/m3)
Description: <p>Total particulate aerosol Co concentration, data quality flag (see metadata for definitions)</p>
http://lod.bco-dmo.org/id/dataset-parameter/989960.rdf
Name: Ni_A_T_AVG_HIVOL
Units: picomoles per cubic meter (pmol/m3)
Description: <p>Total particulate aerosol Ni concentration, average. Detection limit = 0.062</p>
http://lod.bco-dmo.org/id/dataset-parameter/989961.rdf
Name: Ni_A_T_STDEV_HIVOL
Units: picomoles per cubic meter (pmol/m3)
Description: <p>Total particulate aerosol Ni concentration, standard deviation</p>
http://lod.bco-dmo.org/id/dataset-parameter/989962.rdf
Name: Ni_A_T_QF_HIVOL
Units: picomoles per cubic meter (pmol/m3)
Description: <p>Total particulate aerosol Ni concentration, data quality flag (see metadata for definitions)</p>
http://lod.bco-dmo.org/id/dataset-parameter/989963.rdf
Name: Cu_A_T_AVG_HIVOL
Units: picomoles per cubic meter (pmol/m3)
Description: <p>Total particulate aerosol Cu concentration, average. Detection limit = 0.34</p>
http://lod.bco-dmo.org/id/dataset-parameter/989964.rdf
Name: Cu_A_T_STDEV_HIVOL
Units: picomoles per cubic meter (pmol/m3)
Description: <p>Total particulate aerosol Cu concentration, standard deviation</p>
http://lod.bco-dmo.org/id/dataset-parameter/989965.rdf
Name: Cu_A_T_QF_HIVOL
Units: picomoles per cubic meter (pmol/m3)
Description: <p>Total particulate aerosol Cu concentration, data quality flag (see metadata for definitions)</p>
http://lod.bco-dmo.org/id/dataset-parameter/989966.rdf
Name: Zn_A_T_AVG_HIVOL
Units: picomoles per cubic meter (pmol/m3)
Description: <p>Total particulate aerosol Zn concentration, average. Detection limit = 0.98</p>
http://lod.bco-dmo.org/id/dataset-parameter/989967.rdf
Name: Zn_A_T_STDEV_HIVOL
Units: picomoles per cubic meter (pmol/m3)
Description: <p>Total particulate aerosol Zn concentration, standard deviation</p>
http://lod.bco-dmo.org/id/dataset-parameter/989968.rdf
Name: Zn_A_T_QF_HIVOL
Units: picomoles per cubic meter (pmol/m3)
Description: <p>Total particulate aerosol Zn concentration, data quality flag (see metadata for definitions)</p>
http://lod.bco-dmo.org/id/dataset-parameter/989969.rdf
Name: Pb_A_T_AVG_HIVOL
Units: picomoles per cubic meter (pmol/m3)
Description: <p>Total particulate aerosol Pb concentration, average. Detection limit = 0.00029</p>
http://lod.bco-dmo.org/id/dataset-parameter/989970.rdf
Name: Pb_A_T_STDEV_HIVOL
Units: picomoles per cubic meter (pmol/m3)
Description: <p>Total particulate aerosol Pb concentration, standard deviation</p>
http://lod.bco-dmo.org/id/dataset-parameter/989971.rdf
Name: Pb_A_T_QF_HIVOL
Units: picomoles per cubic meter (pmol/m3)
Description: <p>Total particulate aerosol Pb concentration, data quality flag (see metadata for definitions)</p>
GB/NERC/BODC > British Oceanographic Data Centre, Natural Environment Research Council, United Kingdom
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
https://doi.org/10.26008/1912/bco-dmo.986789.1
download
onLine
dataset
<p>A high-volume total suspended particle aerosol sampler (Tisch Environmental TE-5170V-BL), installed at Makai Research Pier (21.32° N, 157.67° W) on the eastern side of O'ahu, collected weekly-integrated bulk aerosol samples from January 2022 to October 2023. Makai Research Pier experiences regular northeasterly winds, which were isolated with a sector-control system that powered the sampler during onshore wind conditions at a velocity &gt;0.5 meters per second (m/s). The sampler was fitted with a GEOTRACES-style, custom-made manifold holding 12 acid-washed, 47-millimeter (mm) diameter Whatman-41 filters (e.g. Buck et al., 2019). Filters were acid washed before use to reduce trace element blanks. Sample filters were stored individually in plastic Petri slides at -20 degrees Celsius (°C) until transport to Skidaway Institute of Oceanography for processing and analysis.</p>
<p>Of the 12 filters collected with the aerosol sampler, three filters were reserved for total digestion. The digestion procedure is a three-step process (full details described in Marsay et al., 2022) where the samples were sequentially acidified with concentrated double-distilled nitric acid (d-HNO<sub>3</sub>), hydrofluoric acid (Fisher Trace Metal Grade; HF), and hydrogen peroxide (Fisher Optima Grade; H<sub>2</sub>O<sub>2</sub>), heated to ~140 °C on a hotplate overnight, and then taken to near dryness. A known volume of Rh was added to the first acid-addition step to account for any potential loss of material over the course of the digestion process. Following the final dry-down, samples were brought up in 0.32 M optima HNO<sub>3</sub> and then analyzed for a mix of primarily lithogenic and anthropogenically associated trace elements (including Al, Co, Cr, Cu, Fe, Mn, Ni, Pb, Ti, V, and Zn) via quadrupole ICP-MS (Perkin Elmer Nexion 300D). The instrument was operated in standard mode for Al and Ti and reaction gas mode (NH<sub>3</sub>) for the remaining elements to reduce polyatomic interferences. The Standard Reference Material NIST 1643f was analyzed with the analytical run to evaluate instrument performance. Filter blanks were digested, analyzed, and subtracted from sample values to correct for any external contributions, while reference materials (Arizona Test Dust and MESS-3) were also processed and analyzed to assess the efficiency of the digestion procedure. Finally, the bulk trace element aerosol concentrations were normalized by dividing the filter concentrations by the volume of air sampled during each respective deployment.</p>
Specified by the Principal Investigator(s)
<p>All data processing was completed using Microsoft Excel.</p>
<p><strong>Note on detection limits:</strong> 700 cubic meters was used to calculate representative detection limits.</p>
<p><strong>Note on concentration averages:</strong> Averages are of 3 independent filter sample digestions, except when values were excluded because:<br />
(a) a value was lower than 3x standard deviation of filter blank;<br />
(b) a value was determined to be a statistical outlier by Grubbs' test.</p>
<p><strong>Quality Flag Codes:</strong><br />
BDL = below detection limit<br />
0 = No QC performed<br />
1 = Good data<br />
2 = Probably good data<br />
3 = Probably bad data that is potentially correctable<br />
4 = Bad data<br />
5 = Value changed<br />
6 = Sample &lt; blank<br />
8 = Interpolated value<br />
9 = Missing value</p>
Specified by the Principal Investigator(s)
- Imported original file "HATS Total Aerosols.csv" into the BCO-DMO system.
- Created ISO 8601 date-time columns.
- Added columns for site latitude and longitude.
- Renamed fields to comply with BCO-DMO naming conventions
- Saved the final file as "986789_v1_hat_total_aerosols.csv".
Specified by BCO-DMO Data Managers
asNeeded
7.x-1.1
Biological and Chemical Oceanography Data Management Office (BCO-DMO)
Unavailable
508-289-2009
WHOI MS#36
Woods Hole
MA
02543
USA
info@bco-dmo.org
http://www.bco-dmo.org
Monday - Friday 8:00am - 5:00pm
For questions regarding this resource, please contact BCO-DMO via the email address provided.
pointOfContact
Tisch Environmental TE-5170V-BL
Tisch Environmental TE-5170V-BL
PI Supplied Instrument Name: Tisch Environmental TE-5170V-BL PI Supplied Instrument Description:High-volume total suspended particle aerosol sampler. Flow rate = 1 m3/min. Instrument Name: Aerosol Sampler Instrument Short Name: Instrument Description: A device that collects a sample of aerosol (dry particles or liquid droplets) from the atmosphere. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/13/
Perkin Elmer Nexion 300d
Perkin Elmer Nexion 300d
PI Supplied Instrument Name: Perkin Elmer Nexion 300d PI Supplied Instrument Description:Perkin Elmer Nexion 300d quadrupole inductively coupled plasma mass spectrometer Instrument Name: Inductively Coupled Plasma Mass Spectrometer Instrument Short Name:ICP Mass Spec Instrument 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. Community Standard Description: http://vocab.nerc.ac.uk/collection/L05/current/LAB15/