Comparison of the Methods for Determining Pyrogenically Modified Carbon Compounds

Abstract The soil organic matter (SOM) is searched for the biomarkers and specific features associated with effect of wildfires by case study peat soil, Rheic Hemic Histosol (Lignic), in south middle taiga Komi Republic. It shown that fires considerably influence matter. Pyrogenic activity assessed according to content charcoal particles. SOM examined using solid-state 13 C-NMR spectroscopy determine concentrations polycyclic aromatic hydrocarbons (PAHs) benzene polycarboxylic acids (BPCAs). used methods allow diagnosing effects on composition. In horizons signs pyrogenesis, share carbon represented fragments increases as well PAH concentration, mainly at expense naphthalene, phenanthrene, chrysene. stock pyrogenically modified compounds, amounting 4.4 kg/m 2 , first time European north based BPCA content. characteristics changed compounds their obtained different correlate well: Pearson coefficient correlation (Caryl) total R = 0.84 ( p < 0.05) individual BPCAs, 0.81–0.90 0.05).