Assessment of the performance of diffusive gradients in thin-films for metal contaminant measurements in Antarctic marine waters
This study assessed the performance of diffusive gradients in thin-films (DGT) with a binding resin that used Chelex-100 (iminodiacetic acid functional groups) to measure cadmium, copper, nickel, lead, and zinc contaminants in Antarctic marine conditions. To do this, three sets of experiments were done: (I) the uptake of metals to DGT samplers was assessed over time when deployed to three metal mixtures of known concentrations (DGT performance page). This allowed for the determination of metal diffusion coefficients in Antarctic marine conditions and demonstrated when metal competition for binding sites were likely to occur. (II) the DGT were deployed in the presence of the microalga Phaeocystis antarctica at a concentration of 1000-3000 cells/mL to investigate how environmentally realistic concentrations of an Antarctic marine microalgae affect the uptake of metals (DGT uptake with algae page). Finally, the DGT-labile concentrations from part (II) were used in reference toxicity mixture models to predict toxicity to the microalgae so they could be compared to a previous study that investigated the toxicity of metal mixtures to Phaeocystis antarctica and Cryothecomonas armigera (DGT toxicity modelling page).
Simple
Identification info
- Alternate title
- Assessment of the performance of diffusive gradients in thin-films for metal contaminant measurements in Antarctic marine waters
- Date (Publication)
- 2019-01-16
- Edition
- 1
- Citation identifier
-
Dataset DOI
- Title
- Information and documentation - Digital object identifier system
- Date (Publication)
- 2012-04-23
- Citation identifier
- ISO 26324:2012
- Citation identifier
- doi:10.26179/5bf3603a6349c
Originator
Publisher
Principal investigator
Principal investigator
Principal investigator
Principal investigator
Collaborator
Collaborator
Collaborator
- Name
- CAASM Metadata
- Purpose
- These laboratory experiments investigate the applicability of DGT to measure the common metal contaminants cadmium, copper, nickel, lead, and zinc in conditions reflective of the Antarctic marine environment. These experiments determine the diffusion coefficients necessary to calculate DGT-labile concentrations in field deployments, identifies the influence of microalgae to the accumulation of metals, determines the concentration at which metal-metal competition is likely on the binding resin, and demonstrates the use of DGT-labile concentrations in contaminant mixture reference models to predict toxicities to two Antarctic marine microalgae.
- Status
- Completed
Custodian
- Topic category
-
- Oceans
- Environment
Extent
Extent
- Description
- Temporal Coverage
Temporal extent
- TimePeriod
- 2017-06-15 2017-06-22
- Title
- Diffusive Gradients in Thin Films Can Predict the Toxicity of Metal Mixtures to Two Microalgae: Validation for Environmental Monitoring in Antarctic Marine Conditions.
- Date (Publication)
- 2019
- Citation identifier
- 38
Author
- Name
- Environmental Toxicology and Chemistry
- Issue identification
- 6
- Page
- 1323-1333
- NASA/GCMD Earth Science Keywords
-
- EARTH SCIENCE > TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > CONTAMINANTS > TRACE METALS
- EARTH SCIENCE > OCEANS > MARINE ENVIRONMENT MONITORING
- EARTH SCIENCE > HUMAN DIMENSIONS > ENVIRONMENTAL IMPACTS > CONTAMINANT LEVELS/SPILLS
- EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > ECOTOXICOLOGY > TOXICITY LEVELS
- Keywords
-
- ENVIRONMENTAL MONITORING
- DIFFUSIVE GRADIENTS IN THIN-FILMS
- NASA/GCMD Earth Science Keywords
-
- ICP-AES > Inductively Coupled Plasma Atomic Emission Spectrometer
- ICP-MS > Inductively Coupled Plasma Mass Spectrometer
- NASA/GCMD Earth Science Keywords
-
- LABORATORY
- NASA/GCMD Earth Science Keywords
-
- AMD/AU
- AMD
- CEOS
- NASA/GCMD Earth Science Keywords
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- CONTINENT > AUSTRALIA/NEW ZEALAND > AUSTRALIA
- GEOGRAPHIC REGION > POLAR
- CONTINENT > ANTARCTICA
- OCEAN > SOUTHERN OCEAN
Resource constraints
- Use limitation
- This metadata record is publicly available.
Resource constraints
- Access constraints
- licence
- Other constraints
- These data are publicly available for download from the provided URL.
Resource constraints
- File type
- Portable Network Graphic
- Title
- Attribution 4.0 International (CC BY 4.0)
- Website
-
https://creativecommons.org/licenses/by/4.0/legalcode
Legal code for Creative Commons by Attribution 4.0 International license
- Use constraints
- licence
- Other constraints
- This data set conforms to the CCBY Attribution License (http://creativecommons.org/licenses/by/4.0/). Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=AAS_4326_DGTvalidation when using these data.
- Language
- English
- Character encoding
- UTF8
Distribution Information
Distributor
Distributor
Distributor
- Fees
- Free
- Planned available datetime
- 2019-01-16T00:00:00
- Units of distribution
- kb
- Transfer size
- 76
- Distribution format
-
- Excel
- OnLine resource
-
GET DATA
Download the dataset
- OnLine resource
-
PROJECT HOME PAGE
Public information for AAS project AAS_4326
- OnLine resource
-
PROJECT HOME PAGE
Public information for AAS project 4326
- OnLine resource
-
VIEW RELATED INFORMATION
Citation reference for this metadata record and dataset.
- Maintenance and update frequency
- As needed
- Maintenance note
- 2018-11-20 - record created by Darren Koppel. 2019-02-14 - record updated by Dave Connell to publicly release the data. 2019-06-19 - record updated by Darren Koppel to add a reference.
Metadata
- Metadata identifier
- string/AAS_4326_DGTvalidation
- Language
- English
- Character encoding
- UTF8
Author
Sponsor
Owner
Type of resource
- Resource scope
- Dataset
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Citation identifier
- b6ad6c3c-c4ba-4f6e-9ff7-15eeec85717d
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Date (Last Revision)
- 2019-06-19T11:55:38
Identifier
- Description
- metadata.extraction_date
Alternative metadata reference
- Title
- gov.nasa.gsfc.gcmd
- Citation identifier
- 8.6
- Metadata linkage
-
http://data.aad.gov.au/metadata/records/AAS_4326_DGTvalidation
Point of truth for the metadata record
- Date info (Creation)
- 2018-11-19T00:00:00
- Date info (Last Update)
- 2019-06-19
Metadata standard
- Title
- ISO 19115-3
- Edition
- 2014
- Other citation details
- Version 1
- Title
- DIF to ISO 19115-1 Profile