Pictures: 
Short Description: 

Sampling of polycyclic aromatic hydrocarbons (PAHs) in air and water in the Gulf of Mexico related to the Deepwater Horizon oil spill.

On April 20th, 2010 a lethal explosion at the Deepwater Horizon oil drilling rig located 66 km southeast of the Louisiana coast in Mississippi Canyon Block 252, led to the largest marine oil spill in United States history. In the case of marine oil spills, such as the Deepwater Horizon spill, there is an initial, acute risk to organisms that can become covered in viscous crude as well as acute and chronic risks from exposure to toxic chemicals through air, water and food. Even after the oil is no longer visible, chemicals of concern can persist in the environment and affect exposed organisms . It is the freely dissolved fraction of chemicals in the water that is bioavailable to diffuse across biological membranes and enter organisms and the food web. The use of chemical dispersants during the Deepwater Horizon oil spill was a source of contention among scientists and the public, in part because the application of dispersants to crude oil makes PAHs and other hydrophobic compounds more soluble in water, increasing their bioavailability.
 
Passive sampling devices (PSDs) were developed to address the issue of quantifying the bioavailable fraction of hydrophobic compounds in environmental media. They sequester and accumulate the freely dissolved, and therefore bioavailable fraction of hydrophobic organic contaminants, such as PAHs; mimicking passive uptake and accumulation of these compounds by biomembranes and lipid tissues. PSDs provide a time integrated measure of the concentration of chemicals in the environment and, by effectively sampling a large volume of water, allow for the detection of chemicals that are present at low concentrations. This objectives of this study are to assess the impact of the Deepwater Horizon oil spill on bioavailable PAHs, OPAHs and other spill contaminants at coastal sites in the Gulf of Mexico


Journal Articles

Tidwell, LG, Allan, SE, O'Connell, SG, Hobbie, KA, Smith, BW, Anderson, KA,Polycyclic Aromatic Hydrocarbon (PAH) and Oxygenated PAH (OPAH) Air-Water Exchange during the Deepwater Horizon Oil Spill., Environ. Sci. Technol. 2015, 49(1), 141-9

Forsberg, ND, O'Connell, SG, Allan, SE, Anderson, KA,Passive sampling coupled to ultraviolet irradiation: a useful analytical approach for studying oxygenated polycyclic aromatic hydrocarbon formation in bioavailable mixtures., Environ. Toxicol. Chem. 2014, 33(1), 177-81

Allan, SE, Smith, BW, Anderson, KA,Impact of the deepwater horizon oil spill on bioavailable polycyclic aromatic hydrocarbons in Gulf of Mexico coastal waters., Environ. Sci. Technol. 2012, 46(4), 2033-9

Platform/Presentations

Anderson, KA,Chemistry and chemical properties of crude oils and fuel products; chemical fate following a spill; sampling methods during an incident; examples from the BP Deepwater Horizon incident, 2015, Crude by Rail Workshop. Portland, OR

Tidwell, LG, Hobbie, KA, Wilson, GR, O'Connell, SG, Allan, SE, Anderson, KA,Air Water Exchange of PAH during the DWH Incident, 2013, International Society of Polycyclic Aromatic Compounds, Corvallis Oregon

Anderson, KA, Allan, SE, O'Connell, SG, Tidwell, LG,Assessment and source-modeling of bioavailable contaminants in Gulf of Mexico coastal waters before, during and after the Deepwater Horizon oil spill, 2012, 243rd ACS National Meeting

Tidwell, LG, Hobbie, KA, Wilson, GR, O'Connell, SG, Allan, SE, Anderson, KA,Utilizing Passive Sampling for Rapid Response to Assess Atmospheric Exposure to PAHs Before, During and After the Deepwater Horizon Oil Spill., 2012, SETAC North America

Anderson, KA,Biological Response Indicator Devices for Gauging Environmental Stressors (BRIDGES) in the Gulf of Mexico, 2011, Federation of American Societies for Experimental Biology (FASEB) and the Ad Hoc Group for Medical Research, Advancing Discovery: Assessing the Impact of the Gulf Oil Spill

Anderson, KA, Allan, SE, Tidwell, LG, O'Connell, SG, Hobbie, KA, Wilson, GR,Assessment of bioavailable PAH compounds in water and air at near shore locations in the Gulf of Mexico pre- and post- shoreline oiling during the Deepwater Horizon oil spill, 2010, Invited plenary speaker, Superfund Research Program Annual Meeting

Allan, SE, Tidwell, LG, Hobbie, KA, O'Connell, SG, Wilson, GR, Anderson, KA,Bioavailable PAH compounds in coastal marine waters of the Gulf of Mexico pre and post shoreline oiling during the Deepwater Horizon oil spill, 2010, SETAC North America 31st Annual Conference

Anderson, KA,Deepwater Horizon Disaster, 2010, NIEHS Webinar

Anderson, KA,Polycyclic Aromatic Hydrocarbons in Portland Harbor and the Gulf of Mexico, 2010, Invited Speaker, Oregon Environmental Health Association

Posters

Donald, CE, O'Connell, SG, Allan, SE, Tanguay, RL, Anderson, KA,Correlating OPAH concentrations with zebrafish toxicity of Deepwater Horizon samples: a bottom-up approach, 2014, EMT Research Day, Corvallis, OR

Donald, CE, O'Connell, SG, Allan, SE, Tanguay, RL, Anderson, KA,Correlating OPAH concentrations with zebrafish toxicity of Deepwater Horizon samples: a bottom-up approach, 2013, SETAC North America National Meeting, Nashville, TN

Donald, CE, O'Connell, SG, Allan, SE, Tanguay, RL, Anderson, KA,Correlating OPAH concentrations with zebrafish toxicity of Gulf of Mexico samples around the Deepwater Horizon oil spill: a bottom-up approach, 2013, International Symposium on Polycyclic Aromatic Hydrocarbons, Corvallis, OR

Allan, SE, Smith, BW, Anderson, KA,Assessment and Source Modeling of Bioavailable Contaminants in Gulf of Mexico Coastal Waters Before, During and After the Deepwater Horizon Oil Spill, 2011, SETAC North America 32nd Annual Conference

Allan, SE, O'Connell, SG, Tidwell, LG, Hobbie, KA, Smith, BW, Wilson, GR, Anderson, KA,Pre- and post- shoreline oiling assessment of bioavailable PAH compounds in coastal waters of the Gulf of Mexico following the Deepwater Horizon oil spill, 2011, SETAC Gulf Oil Spill Focused Topic Meeting

Tidwell, LG, Hobbie, KA, Allan, SE, O'Connell, SG, Wilson, GR, Anderson, KA,Deepwater Horizon oil spill sites used to demonstrate atmospheric passive samplers coupled with a 1200 analyte screening method, 2010, SETAC North America 31st Annual Conference

News Stories: