Figure 5From: Concentrations and sources of polycyclic aromatic hydrocarbons in surface coastal sediments of the northern Gulf of MexicoRelationship between PAH concentrations and (a) TOC (r = 0.3), and (b) C/N ratios (r = 0.75, p < 0.01) in sediments. The MRM sediment in May 2010 was excluded due to its exceptionally high PAH concentration.Back to article page