Abstract:
Geochemical, microbial and 14C data on remediation of petroleum hydrocarbons in Antarctica.
This record is part of ASAC project 1163 (ASAC_1163).
Microcosm study using Old Casey petroleum hydrocarbon contaminated sediment investgating the effect of temperature on biodegradation. The experiment was performed over a temperature range of -2 to 42 degrees. The experiment was run over 40 days.
... Degradation was traced by radiometric methods and total aliphatic hydrocarbons were measured by gas chromatography.
Radiometric data in file radiometric_99.xls, Gas Chromatography data in file
gc_99.xls.
The radiometric spreadsheet is divided up as follows:
CALCULATIONS is how much nutrients, water, radioactivity was added to the sediment.
SUMMARY is what went into each microcosm flask.
%DPMVRST are recovery graphs of individual flasks.
AVERAGE RECOVERY and FIRST ORDER are graphs.
-2A,-2B etc are the raw data for each flask. The number refers to the temperature, the letter refers to the replicate.
The gc_99 spreadsheet is divided up as follows:
MicroN2B, MicroN2C etc is the raw gas chromatography data, peak areas, heights, amount extracted. This spreadsheet uses the same codes as the radiometric spreadsheet in the metadata record entitled: &Mineralisation results using 14C octadecane at a range of water, nutrient levels and freeze thaw cycles&.
SUMMARY is the actual hydrocarbon concentrations in ug/g and weathering indices.
GRAPHS-ABS are the graphs of absolute concentrations.
GRAPHS-RATIO are the graphs of weathering indices.
The fields in this dataset are:
Days - Since experiment started.
Hours - Since experiment started.
Weight of NaOH (g)
Count (dpm) - measurement from radiation counter - disintergrations per minute.
Discarded dpm's - counts 'lost' from the system. Used in a 'mass balance'.
Volume NaOH (ml)
dpm in trap/dresschel bottle
Absolute dpm's
% dpm recovered
millimole octadecane mineralised
Retention Time
Area
% Area
Height of peak
Amount
Int Type
Units
Peak Type
Codes 
