title: Letter to the editor.
abstract: This letter to the editor explains why the results presented in "Crane (Arch Environ Contam Toxicol 66:176-200, Crane 2014)" does not support the hypothesis that refined tar sealers (RTS) are a significant source of PAHs in urban sediments. Additional analysis of Crane's data indicates that sediment chemistry can be explained in the absence of RTS.
authors.affiliation: Exponent, Inc., 15375 S.E. 30th Place, Suite 250, Bellevue, WA, 98007, USA, koreilly@exponent.com.
authors.forename: Kirk
authors.initials: K
authors.lastname: O'Reilly
mesh_terms: D052918:Environmental Restoration and Remediation / Q000379:methods*; D019015:Geologic Sediments / Q000737:chemistry*; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D014874:Water Pollutants, Chemical / Q000032:analysis*; D014877:Water Pollution, Chemical / Q000517:prevention & control*
chemical_list: D011084:Polycyclic Aromatic Hydrocarbons; D014874:Water Pollutants, Chemical