I have 20 years of experience, and specialize in the field of marine toxicology with specific knowledge in the areas of environmental health sciences, ecotoxicology and public health. I have published on such topics as persistent organic pollutants in marine mammals, brominated flame retardants in marine food webs and hazards of chemical dispersants and oil. I have testified on brominated flame retardants, bisphenol-A (BPA). I am credited as the first scientist to show that flame retardant chemicals used in consumer products have contaminated marine mammals and commercially important fish stocks in the northwest Atlantic Ocean.