Dataset: Fog water chemistry

Name: Chemical parameters measured on fog water samples from land and ocean locations on California coast from May 2014 to August 2017.
Published: 2018-02-02
Keywords: oceans

Cite This Dataset

Spatial Extent: N:42.8585 E:-121.5967 S:36.0723 W:-126.8567

Temporal Extent: 2014-05-23 - 2017-08-15

Project:

Collaborative Research: Investigations on the Cycling of Mercury from the Ocean to Fog and Deposition to Land in Coastal California (Mercury in Fog)

Principal Investigator:

Peter Weiss-Penzias (University of California-Santa Cruz, UCSC)

Co-Principal Investigator:

Kenneth Coale (Moss Landing Marine Laboratories, MLML)

Daniel Fernandez (California State University Monterey Bay, CSU-MB)

Wesley Heim (Moss Landing Marine Laboratories, MLML)

BCO-DMO Data Manager:

Megan Switzer (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

Version Date:

2018-02-02

Restricted:

Validated:

Current State:

Preliminary and in progress

Chemical parameters measured on fog water samples from land and ocean locations on California coast from May 2014 to August 2017.

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Description

Complete methodology, sampling, and analytical procedures are explained in Weiss-Penzias P. S., Coale K., Heim W., Fernandez D., Oliphant A., Dodge C., Hoskins D., Farlin J., Moranville R. and Olson A. (2016) Total- and monomethyl-mercury and major ions in coastal California fog water: Results from two years of sampling on land and at sea. Elementa 4, 000101. doi: 10.12952/journal.elementa.000101

Other relevant publications:

Coale, K.H., Heim, W.A., Negrey, J., Weiss-Penzias, P., Fernandez, D., Olson, A., Chiswell, H., Byington, A., Bonnema, A., Martenuk, S., Newman, A., Beebe, C. and Till, C. (in review). The distribution and speciation of mercury in the California Current: Implications for mercury transport via fog to land. Deep Sea Research II.

M. Fernandez, Daniel & Torregrosa, Alicia & S. Weiss-Penzias, Peter & June Zhang, Bong & Sorensen, Deckard & E. Cohen, Robert & Mckinley, Gareth & Kleingartner, Justin & Oliphant, Andrew & Bowman, Matthew. (2017). Fog Water Collection Effectiveness: Mesh Intercomparisons. Aerosol and Air Quality Research: 18. doi: 10.4209/aaqr.2017.01.0040.

Methods & Sampling

Fog water samples were collected with a Caltech active strand cloudwater collector. Total Hg was measured with a Tekran 2600 and monomethylmercury was measured with a Tekran 2700. Inorganic ions were measured with an Dionex ion chromatograph with suppressed conductivity detection using 29 mM KOH eluent.

Data Processing Description

The data were processed using Microsoft Excel, Microsoft Access, ArcGIS 9.0, and OriginLab Origin 2016.

Data Files

File
726198.csv (Comma Separated Values (.csv), 54.97 KB) MD5:906801d302f0e14bab08a5aac51a194c Primary data file for dataset ID 726198

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1333738
NSF Division of Ocean Sciences	OCE-1334252
NSF Division of Ocean Sciences	OCE-1333976

Deployments

None available yet

Instruments

Automated Mercury Analysis System

Supplied Name: Tektran 2600; Tektran 2700

Supplied Description:

Instrument Type

Generic Name: Automated Mercury Analysis System

Generic Description:

Examples include Tekran Models 2600 and 2700

Cloudwater collector

Supplied Name: Caltech active strand cloudwater collector

Supplied Description:

Instrument Type

Generic Name: Cloudwater collector

Generic Description:

Ion Chromatograph

Supplied Name: Dionex ion chromatograph with suppressed conductivity detection using 29 mM KOH eluent

Supplied Description:

Instrument Type

Generic Name: Ion Chromatograph

Generic Description:

Ion chromatography is a form of liquid chromatography that measures concentrations of ionic species by separating them based on their interaction with a resin. Ionic species separate differently depending on species type and size. Ion chromatographs are able to measure concentrations of major anions, such as fluoride, chloride, nitrate, nitrite, and sulfate, as well as major cations such as lithium, sodium, ammonium, potassium, calcium, and magnesium in the parts-per-billion (ppb) range. (from http://serc.carleton.edu/microbelife/research_methods/biogeochemical/ic.html)

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
Sample_ID	Sample identifier on bottle	no units	sample_descrip
Date_collected	Date collected in format mm/dd/yy	unitless	date
Sample_type	field blank,rain sample, or fog sample	no units	sample_descrip
Sample_type_2	aliquot,filtered,incubated	no units	sample_descrip
Sample_location	Location ID. BCR- Big Creek Reserve; BML- Bodega Marine Labs; FRF- Fritzche Field; HSU- Humboldt State University Marine Labs; LML- Long Marine Lab; MTA- Montara Lighthouse; OCE- Pacific Ocean, various locations; PPW- Pepperwood Preserve; SFSU- San Francisco State University; UCSC- University of California, Santa Cruz	no units	sample_descrip
Latitude	Latitude	decimal degrees	lat
Longitude	Longtitude	decimal degrees	lon
Sample_vol	Sample volume	mL	sample_descrip
HgT	Total mercury	ng/L	no_bcodmo_term
MMHg	Monomethyl mercury	ng/L	no_bcodmo_term
Ammonium	Ammonium ion	mg/L	NH4
Chloride	Chloride ion	mg/L	chloride
Sulfate	Sulfate ion	mg/L	SO4
Nitrate	Nitrate ion	mg/L	NO3
pH	pH	pH scale	pH
bank_flag	Flag was set to 1 if the field blank was > 20% of sample concentration	no units	no_bcodmo_term
volume_flag	Flag was set to 1 if sample volume was > 10 mL	no units	no_bcodmo_term
TOC	Total organic carbon	ppb	TOC
UCSC_HgT	Total mercury measured at UCSC lab	ng/L	no_bcodmo_term
UCSC_MMHg	Momomethyl mercury measured at UCSC lab	ng/L	no_bcodmo_term
HM_SO4	Sulfate ion measured at Harvey Mudd lab	mg/L	SO4
HM_NO3	Nitrate ion measured at Harvey Mudd lab	mg/L	NO3
delO18	Deviation of oxygen-18 ratio from a standard (which standard???)	per mille	no_bcodmo_term

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Dataset: Fog water chemistry