Abstract:

Samples of surf zone seawater were collected to track the occurrence of polycyclic aromatic hydrocarbons along beaches of the West Florida Panhandle. Water samples (1 liter) were extracted by standard procedures for analysis of naphthalene, phenanthrene, and chrysene and their 1-3 alkylated forms by GC/MS SIM. Trace amounts were found after beach oiling, and rapidly decreased to undetectable levels.

Suggested Citation:

Snyder, Richard A. 2014. Naphthalenes, Phenanthrenes, and Chrysenes in Northwest Florida Surf Water, Santa Rosa and Escambia Counties in Florida, 4-4-2011 to 5-30-2011. Distributed by: GRIIDC, Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/N7NC5Z5T

Purpose:

Monitoring concentrations of PAHs that are characteristic of crude petroleum via detection of naphthalene, phenanthrene, and chrysene and also alkylated naphthalenes, phenanthrenes, and chrysenes in the surf water at beaches in Santa Rosa and Escambia Counties in Florida following the BP MC 252 well failure.

Data Parameters and Units:

3Metadata_and_SeawaterPAHsSpring2011.xlsx-- MetaD: Metadata Identifier Sheet for Spring 2011 for Naphthalenes, Phenanthrenes, and Chrysenes in Northwest Florida Surf Water, Purpose, Dates, Location, Latitude, Longitude (decimal degrees), Methods, List of Abbreviations, Responsible Party. Seawater PAHs [01 Fort Pickens Battery 234, 02 Pensacola Fishing Pier, 03 University of West Florida Property, 04 Navarre Fishing Pier, 05 River Road]: Site ID, Date (MM/DD/YY), Sample ID, Water Location (Surf), [Naph CO, Naph C1, Naph C2, Naph C3, Tot Naph, Ph CO, Ph C1, Ph C2, Ph C3, Tot Ph, Ch CO, Ch C1, Ch C2, Ch C3, Tot Chry, Total PAH] (ug/kg). PAH- Polycyclic aromatic hydrocarbons (Polynuclear aromatic hydrocarbons) are compounds built from two or more benzene rings Date - The date that the sample was taken Media- Material sampled rpl- Indicates replicate sample Site- Location of sample’s origin Site ID- Unique number given to each site Surf- Collected in region just before the beach front with a depth range of 45 to 90 cm. Naph C0- ug naphthalene/kg Naph C1- ug methylnaphthalenes/kg Naph C2- ug dimethylnaphthalenes/kg Naph C3- ug trimethylnaphthalenes/kg Tot Naph- ug sum of C+ C1+C2+C3 naphthalenes/kg Ph C0- ug phenanthrene/kg Ph C1- ug methylphenanthrenes/kg Ph C2- ug dimethylphenanthrenes/kg Ph C3- ug trimethylphenanthrenes/kg Tot Ph- ug Sum of C0+C1+C2+C3 phenanthrenes/kg Ch C0- ug chrysene/kg Ch C1- ug methylchrysenes/kg Ch C2- ug dimethylchrysenes/kg Ch C3- ug trimethylchrysenes/kg Tot Chry- ug Sum of C0+ C1+C2+C3 chrysenes/kg Total PAH- ug Sum of all detected naphthalenes, phenanthrenes, and chrysenes/kg

Methods:

Collection: Chain of Custody Sheets were filled out for samples. Water grab samples from the surf zone were taken in precleanned amber glass one liter containers and placed on ice. Analysis was generally within a few hours of sampling. Extraction: Extractions were done by extracting the 1 liter aqueous sample with dichloromethane three times in a separatory funnel. The dichloromethane extract was dried down at 38 C to 1ml for analysis. GC-MS Analysis: PAHs were analyzed by GC-MS (Gas Chromatography-Mass Spectrometry) using deuterated internal standards of naphthalene, phenanthrene, and chrysene for quantification.

Individual Files: