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Assessing developmental toxicant exposures via biomonitoring.
Larry L Needham1, Antonia M Calafat, Dana B Barr
1Organic Analytical Toxicology Branch, National Center for Environmental Health, Centers for Disease Control and Prevention, Atlanta, GA 30341-3724, USA. lln1@cdc.gov
Environmental chemical exposure during development can cause adverse effects. This study provides biomonitoring data for U.S. populations, linking chemical exposure levels across life stages to developmental health outcomes.
Area of Science:
- Environmental Health Sciences
- Toxicology
- Biomonitoring
Background:
- Developmental effects in populations are often linked to exposure scenarios and individual susceptibility.
- Environmental public health research has primarily focused on chemical exposures, necessitating consideration of other environmental and susceptibility factors.
- Biomonitoring is a key method for assessing population exposure to environmental chemicals.
Purpose of the Study:
- To determine and disseminate data on environmental chemical concentrations in the U.S. general population.
- To examine the linkage between chemical exposures during critical developmental periods and adverse developmental effects.
- To provide biomonitoring information across various life stages for public health interpretation.
Main Methods:
- Utilizing biomonitoring to measure environmental chemicals, their metabolites, or adducts in biological matrices.
- Compiling and analyzing data on chemical concentrations in the U.S. population.
- Examining specific chemical examples to illustrate the link between exposure and developmental effects.
Main Results:
- Data on environmental chemical concentrations in the U.S. general population have been determined and made publicly available.
- Specific chemicals have been identified as having exposures linked to adverse developmental effects.
- Biomonitoring data are presented for the U.S. population overall and across different life stages.
Conclusions:
- Biomonitoring data are crucial for interpreting exposure scenarios and understanding developmental effects.
- Environmental chemical exposures during critical developmental periods are associated with adverse outcomes.
- Publicly available biomonitoring data support environmental public health research and risk assessment across the lifespan.
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