This biennial Review covers developments in environmental mass spectrometry for emerging environmental contaminants over the period of 2010-2011. Analytical Chemistry's policy is to limit reviews to a maximum of 250 significant references and to mainly focus on new trends. Even with a narrow focus, only a small fraction of the quality research publications could be discussed. As a result, as with the previous review on Environmental Mass Spectrometry in 2010, this Review will not be comprehensive but will highlight emerging contaminant groups and discuss representative papers. I write a similar review article on Water Analysis, which also focuses on emerging contaminants. That review article is somewhat different from this one, in that it focuses on only water contaminants and source of exposure to people living in this region. Urine was measured from people consuming locally grown produce in this region, as well as their drinking water and local produce. All but two of the water samples tested negative for perchlorate, but it was detected up to 1816 ppb in produce. Estimated doses ranged from 0.02 to 0.51 (mu)g/kg body weight/day. The geometric mean was 70percent higher than for the reference population. Although none of the exposures exceeded the U.S. EPA reference dose, 3 participants exceeded the acceptable daily dose used by the California Office of Environmental Health Hazard Assessment.
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