Heavy metal contamination in coastal sediments and soils near the Brazilian Antarctic Station, King George Island

Federal Geographic Data Committee (FGDC) Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Reference_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Unknown

Publication_Date: Unknown

Title: Heavy metal contamination in coastal sediments and soils near the Brazilian Antarctic Station, King George Island

Description:

Abstract:

The natural and anthropogenic processes controlling sediment chemistry in Admiralty Bay, King George Island, Antarctica was investigate, calling the attention on the area affected by the Brazilian Antarctic Station Comandante Ferraz (Ferraz). Total and bioavailable concentrations of sixteen elements were determined in 32 sediment and 14 soils samples. Factor analysis allowed us to distinguish three groups of samples: (1) Ferraz sediments, with higher content of total trace metals and organic matter; (2) control sediments, with intermediate characteristics; (3) Ferraz soils, with higher bioavailability of most metals due to its oxidizing condition and low organic matter content. Major elements such as Fe, Al, Ca and Ti presented similar levels in all three groups. Enrichment factor calculations showed that paints, sewage and petroleum contamination enhanced metal concentrations in Ferraz surface sediments as follows: B, Mo, and Pb (>90%); V and Zn (70–80%); Ni, Cu, Mg, and Mn (30–40%). Despite evidence of contamination in these sediments, the low bioavailability, probably caused by iron-sulfide, indicates small environmental risks.

Purpose:

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Supplemental_Information:

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Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20021221

Ending_Date: 20030320

Currentness_Reference:Unknown

Status:

Progress: Complete

Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Description_of_Geographic_Extent:

Bounding_Coordinates:

West_Bounding_Coordinate: Not Available

East_Bounding_Coordinate: Not Available

North_Bounding_Coordinate: Not Available

South_Bounding_Coordinate: Not Available

Keywords:

Theme:

Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS

Theme_Keyword_Thesaurus: GCMD PLATFORM

Theme_Keyword_Thesaurus: GCMD INSTRUMENT

Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS

Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY

Theme_Keyword_Thesaurus: DATA SET LANGUAGE

Theme_Keyword: EARTH SCIENCE > LAND SURFACE > EROSION/SEDIMENTATION > SEDIMENT CHEMISTRY

Theme_Keyword: FIXED OBSERVATION STATIONS

Theme_Keyword: ICP-ES > INDUCTIVELY COUPLED PLASMA EMISSION SPECTROSCOPY

Theme_Keyword: Trace Metals

Theme_Keyword: St.george Island

Theme_Keyword: ENVIRONMENT

Theme_Keyword: ENGLISH

Place:

Place_Keyword_Thesaurus: GCMD

Place_Keyword: OCEAN > SOUTHERN OCEAN > SOUTH SHETLAND ISLANDS

Place_Keyword: GEOGRAPHIC REGION > POLAR

Place_Keyword: CONTINENT > ANTARCTICA

Access_Constraints: Not Available

Use_Constraints:

Not Available

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Not Available

Logical_Consistency_Report:

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Completeness_Report:

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Lineage:

Process_Step:

Process_Description:

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Process_Date: Unknown

Spatial_Reference_Information:

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: U-FF/DG > Universidade Federal Fluminense

Contact_Person: EMMANOEL SILVA-FILHO

Contact_Position: DATA CENTER CONTACT

Contact_Address:

Address_Type: Mailing and Physical Address

City: Nitero´i

State_or_Province: RJ

Postal_Code: 24020-007

Country: Brazil

Contact_Voice_Telephone: +55 2127174189

Contact_Electronic_Mail_Address: geoemma@vm.uff.br

Resource_Description: ECA053

Distribution_Liability:

Not Available

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: Not Available

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://www.uff.br

Access_Instructions:

DATA CENTER URL

Digital_Transfer_Option:

Fees: Not Available

Metadata_Reference_Information:

Metadata_Date: 20120705

Metadata_Review_Date: 20120730

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: GCMD User Support Office

Contact_Organization: NASA Global Change Master Directory

Contact_Address:

Address_Type: Mailing and Physical Address

Address: Not Available

City: Lanham

State_or_Province: MD

Postal_Code: 20706

Country: USA

Contact_Voice_Telephone: Not Available

Contact_Electronic_Mail_Address: gcmduso@gcmd.gsfc.nasa.gov

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time