Soil Hydrocarbon Respirometry Data from Macquarie Island

2003 data from a respirometer experiment on soil from Macquarie Island's Main Power House, conducted by researchers at the University of Arizona. It contains GC-FID area responses, compound CAS numbers, and total petroleum hydrocarbon (TPH) estimates for a composite sample from 8 soil cores. The work was part of the ASAC project 1163.

Use Cases

• Model the relationship between nitrogen treatment levels (125-625 mg/kg) and GC-FID area responses to optimize nutrient addition for bioremediation.
• Analyze correlations between specific compound CAS numbers and their GC-FID area responses to understand degradation rates.
• Use estimated standard uncertainties for GC-FID area responses to assess measurement reliability in predictive models.
• Predict total petroleum hydrocarbon (TPH) estimates from GC-FID area responses across multiple elution windows using regression techniques.

Strengths

• Includes estimated standard uncertainties for all GC-FID area responses, quantifying measurement error.
• Data covers 5 distinct nitrogen treatment levels plus a control, each replicated in quadruplicate.
• Provides specific compound CAS numbers and GC elution windows for detailed chemical analysis.

Limitations

• Single temporal snapshot from 2003, limiting analysis of degradation over time.
• Geographic scope is limited to one composite soil sample from a specific site on Macquarie Island.
• Sample size is constrained to 24 flasks from one composite of 8 cores.

Provenance

Source

University of Arizona researchers Jim Walworth and Andrew Pond, via AU_AADC and NASA EarthData.

Collection Method

Field soil sampling, composite homogenization, controlled respirometer experiment, and GC-FID chemical analysis.

Time Range

2003

Freshness

null

Geography

Main Power House, Macquarie Island.