The datasets stored in this page summarize polycyclic aromatic hydrocarbon (PAH) referece data and values collected from Brown Pelican nestlings and breeding adults from 2013-2015 in the Northern Gulf of Mexico at 9 breeding colonies from Texas to the Florida Panhandle.The datasets and FGDC-compliant metadata are available as .zip files. Dataset "Polycyclic Aromatic Hydrocarbons in Brown Pelican in the Northern Gulf of Mexico (2013-2015)_Values" provides observed data on the following evaluated PAH: 1,3-dimethylnaphthalene, 1,5-dimethylnaphthalene, 1-methylfluorene, 2,3,5-trimethylnaphthalene, 2,6-dimethylnaphthalene, 2-methylnaphthalene, 3-methylphenanthrene, 9-methylphenanthrene, Acenaphthalene, Acenapthene, Anthracene, Benzo(a)anthracene, benzo(a)pyrene, benzo(b)fluoranthene, Benzo(g,h,i)perylene, Benzo(k)fluoranthene, Chrysene, Dibenz(a,h)anthracene, Fluoranthene, Fluorene, Indeno(1,2,3-cd)pyrene, Naphthalene, Phenanthrene, Pyrene. Dataset "Polycyclic Aromatic Hydrocarbons in Brown Pelican in the Northern Gulf of Mexico (2013-2015)_Reference" provides reference information for the classification of polycyclic aromatic hydrocarbon (PAH) measured from Brown Pelican blood and feather tissues into parent and alkylated types.