Abstract:

Salt marsh cores (Lafourche Parish, LA) 6” dia × 36” long and incubated inside a greenhouse. Emulsified MC252 oil (100 g) added to core surface. Replicate cores used to evaluate three treatment conditions; (i) natural attenuation with existing nutrient concentrations, (ii) nitrogen amendment and (iii) nitrogen + sulfate amendment. Short-term biodegradation (0-3 months). For each treatment condition, cores were sacrificed for oil analysis every ~30 days. The cores were cut into 2 cm sections from the top and oil was extracted and analyzed from the soil sections 0-2 cm, 2-4 cm and 8-10 cm (GC-MS of PAHs, denaturing gradient gel electrophoresis, nutrients). Longer-term (320 days)-replicate cores sacrificed after ~10 months

Suggested Citation:

John Pardue and Vijai Elango. 2014. Greenhouse emulsified oil salt marsh biodegradation study near Fourchon Beach and Leeville, LA, June 2010 through June 2011. Nutrient and Sulfate Data.. Distributed by: GRIIDC, Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/N79K486K

Purpose:

To determine the factors affecting the biodegradation of oil in the salt marsh

Data Parameters and Units:

nitrogen and sulfate summary.xlsx-- Core Sample Nitrogen Measurements: Core Number and Method [Natural Attenuation, Nitrogen Treatment, Sulfate Treatment], core surface water concentration, average pore water concentration of ammonium (mg NH3-N/L) at Soil Depth 0-2 (cm), Sol Depth 2-4 (cm), Soil Depth 4-8 (cm), Soil Depth 8-10 (cm).

Methods:

Salt marsh cores (29.266634, -90.214577) (Lafourche Parish, LA) 6” dia × 36” long and incubated inside a greenhouse.

Individual Files: