I have 16 years of experience and specialize in the field of environmental chemistry, with specific knowledge of gas-particle partitioning, source apportionment and trace organic analysis. I have published on such topics as partitioning of perfluorochemicals from water to particles, source apportionment of polycyclic aromatic hydrocarbons (PAHs) in the atmosphere, and levels and bioaccumulation of polybrominated diphenyl ethers.