Although the discomfort or injury associated with whole-body vibration cannot be predicted directly from the power absorbed during exposure to vibration, the absorbed power may contribute to understanding of the biodynamics involved in such responses.
OPB-51602 was rapidly absorbed, and exposure tended to increase in a dose-dependent manner.
Both the toy industry and the CPSC say that phthalates in toys do not put children at risk, claiming that the amounts absorbed by exposure to commercial products are too low to be harmful.
Estimation of exposure rates from biological measurements is a particularly challenging problem given the complex relationship between ingested, inhaled, or dermally absorbed chemical exposures and the resulting tissue concentrations over time.
Although studies in humans demonstrate that pyrethroid insecticides are absorbed readily after exposure by inhalation, oral, and dermal routes (ATSDR 2003), the primary exposure route in the general population is thought to be through dietary intake (ATSDR 2003).
This paper presents measurements of apparent mass and absorbed power during exposure to random vibration, repeated shocks and combinations of shocks and random vibration.
In an intravenous urography (IVU) study, Almen et al. showed an average absorbed dose per exposure of 0.68 mGy (range 0.48 to 1.10 mGy) for pediatric patients aged between 0 and 1 year [17].
iAs is readily absorbed after oral exposure by most mammalian species.
Among workers monitored for plutonium exposure, absorbed dose to the liver was used as a proxy dose estimate, recorded in Gy.
Other studies using radiolabeled PQ found that it was absorbed by all exposure routes tested, including intravenous, intragastric, dermal, and pulmonary (Chui et al. 1988; Dey et al. 1990).
