62913cd0-0f3b-4cbe-97e1-afc4dfbc3bb4 urn:uuid eng UTF-8 nonGeographicDataset nonGeographicDataset 2025-06-23T09:51:23 creation ISO 19115 2016 Integrated hydrocarbon exposure concentrations for toxicity tests 2010_11 62913cd0-0f3b-4cbe-97e1-afc4dfbc3bb4 Experiments were done to quantify the Total Hydrocarbon Content (THC) in water accommodated fractions (WAF) of three fuels; Special Antarctic Blend diesel (SAB), Marine Gas Oil diesel (MGO) and an intermediate grade of marine bunker Fuel Oil (IFO 180).These tests measured the hydrocarbon content in freshly decanted WAFs and the resulting loss of hydrocarbons over time when WAFs were exposed in temperature controlled cabinets at 0°C. These tests are detailed in Dataset AAS_3054_THC_WAF. The results of hydrocarbon WAF tests were used to calculate integrated concentration from measured hydrocarbon concentrations weighted to time to be used as the exposure concentrations for toxicity tests with Antarctic invertebrates. Exposure concentrations used to model sensitivity estimates were derived by calculating the time weighted mean THC between pairs of successive measurements in the 100% WAFs and dilutions to give overall exposure concentrations for each time point.These modelled concentrations integrated the loss of hydrocarbons over time, and renewal of test solutions at 4 d intervals Exposure concentrations of THC in µg/L are shown for endpoints from 24 h to 21 d {"type": "Polygon", "coordinates": [[[147.31, -42.89], [147.33, -42.89], [147.33, -42.87], [147.31, -42.87], [147.31, -42.89]]]} 147.31 147.33 -42.89 -42.87 AMD AMD/AU CEOS CONTINENT > ANTARCTICA EARTH SCIENCE > BIOSPHERE > ECOLOGICAL DYNAMICS > ECOTOXICOLOGY > BIOAVAILABILITY EARTH SCIENCE > HUMAN DIMENSIONS > ENVIRONMENTAL IMPACTS > CONTAMINANT LEVELS/SPILLS EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > HYDROCARBONS EARTH SCIENCE > OCEANS > WATER QUALITY > OCEAN CONTAMINANTS GC-FID > Gas Chromatography - Flame Ionization Detector GEOGRAPHIC REGION > POLAR LABORATORY MARINE GAS OIL MGO OCEAN > SOUTHERN OCEAN SAB SPECIAL ANTARCTIC BLEND THC TOTAL HYDROCARBON CONTENT WAF WATER ACCOMMODATED FRACTIONS GET DATA > DIRECT DOWNLOAD documentDigital Download the dataset. HTML PROJECT HOME PAGE documentDigital Public information for AAS project AAS_3054 HTML VIEW RELATED INFORMATION documentDigital Citation reference for this metadata record and dataset. HTML Creative Commons by Attribution logo documentDigital PNG