Isotope Enrichment Factors
Pollutant degradation in contaminated sites can be quantified in situ by converting the isotopic enrichment into a decrease in concentration. The proportionality factors used in the literature are so-called isotope enrichment factors which are specific for i) pollutants, ii) isotopes iii) degradation reactions and iv) microbial communities. The equations for degradation quantification are described in the basics section.
- over 60 pollutants, e.g. CHC, BTEX, chlorobenzenes, HCH, MTBE, pesticides, ……
- isotopes 13C/12C (480), 2H/1H (171), 37Cl/35Cl (33), 15N/14N (51)
- various degradation reactions, e.g. oxic, nitrate, sulphate, iron reduction, methanogenesis; reductive dehalogenation (for LCKW); abiotic reactions (Fe0, oxidizing agent, photolysis)