Discussion
BDCPP and DPP were detected in nearly all urine samples collected from pregnant women in North Carolina, suggesting that exposures to TDCPP and TPP are widespread. Our results are consistent with several small studies which also reported variable, but near ubiquitous exposure (Carignan et al., 2013, Cooper et al., 2011 and Meeker et al., 2013). However, geometric mean concentrations were notably higher in our small sample of pregnant women than those reported in any of the previous studies (approximately 3 to 10 times greater than concentrations reported by Carignan et al. (2013) or Meeker et al. (2013)). Differences in excretion rates and kidney function during pregnancy may explain the higher metabolite levels observed in our study cohort relative to other non-pregnant cohorts.
Discussion
BDCPP and DPP were detected in nearly all urine samples collected from pregnant women in North Carolina, suggesting that exposures to TDCPP and TPP are widespread. Our results are consistent with several small studies which also reported variable, but near ubiquitous exposure (Carignan et al., 2013, Cooper et al., 2011 and Meeker et al., 2013). However, geometric mean concentrations were notably higher in our small sample of pregnant women than those reported in any of the previous studies (approximately 3 to 10 times greater than concentrations reported by Carignan et al. (2013) or Meeker et al. (2013)). Differences in excretion rates and kidney function during pregnancy may explain the higher metabolite levels observed in our study cohort relative to other non-pregnant cohorts.
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