Remarkable advances in analytical chemistry now make it possible to measure minute levels of both natural and synthetic compounds in human tissue and body fluids. This "biomonitoring" allows researchers to determine more precisely than ever the degrees to which individuals have been exposed to specific chemicals in the environment, and how exposures change over time. Consequently, federal and state officials increasingly regard biomonitoring as a potential new underpinning of environmental and public health regulations.

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READ MORE ... The Opportunities and Limitations of Biomonitoring was originally published on Feb. 26, 2008.