Data

Soil biogeochemical toxicity end points for sub-Antarctic islands contaminated with petroleum hydrocarbons

Australian Antarctic Data Centre
SCHAFER, ALEXIS NADINE ; SNAPE, IAN
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ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://data.aad.gov.au/metadata/records/ASAC_1163_Soil_Tox_Pet&rft.title=Soil biogeochemical toxicity end points for sub-Antarctic islands contaminated with petroleum hydrocarbons&rft.identifier=https://data.aad.gov.au/metadata/records/ASAC_1163_Soil_Tox_Pet&rft.publisher=Australian Antarctic Data Centre&rft.description=Taken from the abstract of the referenced paper: Sub-Antarctic islands have been subjected to petroleum hydrocarbon spills, yet no information is available regarding the toxicity of petroleum hydrocarbons to these subpolar soils. The purpose of the present study was to identify soil biogeochemical toxicity end points for petroleum hydrocarbon contamination in Sub-Antarctic soil. Soil from Macquarie Island, a sub-Antarctic island south of Australia, was collected end exposed to concentrations of Special Antarctic Blend (SAB) diesel fuel, ranging from 0 to 50,000 mg fuel/kg soil, for a 21-d period. The sensitivity of nitrification, denitrification, carbohydrate utilisation, and total soil respiration to SAB fuel was assessed. Potential nitrification activity was the most sensitive indicator of SAB contamination assessed for nitrogen cycling, with an IC20 (concentration that results in a 20% change from the control response) of 190 mg fuel/kg soil. Potential denitrification activity was not as sensitive to SAB contamination, with an IC20 of 950 mg fuel/kg soil for nitrous oxide production. Nitrous oxide consumption was unaffected by SAB contamintation. Carbohydrate utilisation (respiration caused by sucrose) was a more sensitive indicator (IC20, 16 mg fuel/kg soil) of SAB contamination than total respiration (IC20, 220 mg fuel/kg soil). However, total soil respiration was a more responsive measurement end point, increasing soil respiration over a 72-h period by 17 mg of CO2, compared to a change of only 2.1 mg of CO2 for carbohydrate utilisation. Our results indicate that IC20s varied between 16 to 950 mg fuel/kg soil for Macquarie Island soil spiked with SAB diesel fuel. These results indicate that current cleanup levels derived from temperate zones may be too liberal for soil contamination in sub-Antarctic islands. This work was completed as part of ASAC project 1163 (ASAC_1163).&rft.creator=SCHAFER, ALEXIS NADINE &rft.creator=SNAPE, IAN &rft.date=2009&rft.coverage=northlimit=-54.5; southlimit=-54.7; westlimit=158.7; eastLimit=158.9; projection=WGS84&rft.coverage=northlimit=-54.5; southlimit=-54.7; westlimit=158.7; eastLimit=158.9; projection=WGS84&rft_rights=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=ASAC_1163_Soil_Tox_Pet when using these data.&rft_subject=environment&rft_subject=BIOCHEMICAL RELEASE&rft_subject=EARTH SCIENCE&rft_subject=HUMAN DIMENSIONS&rft_subject=ENVIRONMENTAL IMPACTS&rft_subject=CONTAMINANT LEVELS/SPILLS&rft_subject=OIL SPILLS&rft_subject=DENITRIFICATION RATE&rft_subject=LAND SURFACE&rft_subject=SOILS&rft_subject=ORGANIC MATTER&rft_subject=SOIL MOISTURE/WATER CONTENT&rft_subject=SOIL RESPIRATION&rft_subject=PETROLEUM&rft_subject=SOLID EARTH&rft_subject=EARTH GASES/LIQUIDS&rft_subject=ENVIRONMENTAL ASSESSMENTS&rft_subject=ENVIRONMENTAL GOVERNANCE/MANAGEMENT&rft_subject=Ecotoxicology&rft_subject=Nitrification&rft_subject=Denitrification&rft_subject=Soil respiration&rft_subject=Polar regions&rft_subject=SEDIMENT CORERS&rft_subject=FIELD SURVEYS&rft_subject=FIELD INVESTIGATION&rft_subject=OCEAN > SOUTHERN OCEAN&rft_subject=OCEAN > SOUTHERN OCEAN > MACQUARIE ISLAND&rft_subject=GEOGRAPHIC REGION > POLAR&rft_place=Hobart&rft.type=dataset&rft.language=English Access the data
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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=ASAC_1163_Soil_Tox_Pet when using these data.

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Brief description

Taken from the abstract of the referenced paper: Sub-Antarctic islands have been subjected to petroleum hydrocarbon spills, yet no information is available regarding the toxicity of petroleum hydrocarbons to these subpolar soils. The purpose of the present study was to identify soil biogeochemical toxicity end points for petroleum hydrocarbon contamination in Sub-Antarctic soil. Soil from Macquarie Island, a sub-Antarctic island south of Australia, was collected end exposed to concentrations of Special Antarctic Blend (SAB) diesel fuel, ranging from 0 to 50,000 mg fuel/kg soil, for a 21-d period. The sensitivity of nitrification, denitrification, carbohydrate utilisation, and total soil respiration to SAB fuel was assessed. Potential nitrification activity was the most sensitive indicator of SAB contamination assessed for nitrogen cycling, with an IC20 (concentration that results in a 20% change from the control response) of 190 mg fuel/kg soil. Potential denitrification activity was not as sensitive to SAB contamination, with an IC20 of 950 mg fuel/kg soil for nitrous oxide production. Nitrous oxide consumption was unaffected by SAB contamintation. Carbohydrate utilisation (respiration caused by sucrose) was a more sensitive indicator (IC20, 16 mg fuel/kg soil) of SAB contamination than total respiration (IC20, 220 mg fuel/kg soil). However, total soil respiration was a more responsive measurement end point, increasing soil respiration over a 72-h period by 17 mg of CO2, compared to a change of only 2.1 mg of CO2 for carbohydrate utilisation. Our results indicate that IC20s varied between 16 to 950 mg fuel/kg soil for Macquarie Island soil spiked with SAB diesel fuel. These results indicate that current cleanup levels derived from temperate zones may be too liberal for soil contamination in sub-Antarctic islands. This work was completed as part of ASAC project 1163 (ASAC_1163).

Issued: 2009-01-22

Data time period: 2003-03-19 to 2005-10-31

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158.9,-54.5 158.9,-54.7 158.7,-54.7 158.7,-54.5 158.9,-54.5

158.8,-54.6

text: northlimit=-54.5; southlimit=-54.7; westlimit=158.7; eastLimit=158.9; projection=WGS84

Subjects
BIOCHEMICAL RELEASE | CONTAMINANT LEVELS/SPILLS | DENITRIFICATION RATE | Denitrification | EARTH GASES/LIQUIDS | EARTH SCIENCE | ENVIRONMENTAL ASSESSMENTS | ENVIRONMENTAL GOVERNANCE/MANAGEMENT | ENVIRONMENTAL IMPACTS | Ecotoxicology | FIELD INVESTIGATION | FIELD SURVEYS | GEOGRAPHIC REGION > POLAR | HUMAN DIMENSIONS | LAND SURFACE | Nitrification | OCEAN > SOUTHERN OCEAN | OCEAN > SOUTHERN OCEAN > MACQUARIE ISLAND | OIL SPILLS | ORGANIC MATTER | PETROLEUM | Polar regions | SEDIMENT CORERS | SOIL MOISTURE/WATER CONTENT | SOIL RESPIRATION | SOILS | SOLID EARTH | Soil respiration | environment |

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AU-ANL:PEAU : http://nla.gov.au/nla.party-617536

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