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EFSA derived a tolerable daily intake of 50 μg (BPA)/kg based on the application of a 100-fold uncertainly factor (10 for interspecies differences and 10 for interindividual differences) to a no observable adverse effect level of 5 mg/kg/day in rats.
An uncertainty factor of 200 was applied, deriving a tolerable daily intake (TDI) of 0.2 mg/kg body weight (rounded to one significant figure).
Using an approach comparable to EFSA (2006), JECFA (2008) derived a provisional tolerable weekly intake (PTWI) for OTA of 100 ng/kg body weight, or approximately 14 ng/kg body weight/day, based on the pig study.
In addition, the table shows the percentage of the EFSA-derived tolerable daily intake [TDI] calculated for PFOS and PFOA uptake.
In order to define an interference threshold which is predetermined by a practical licensed system (considering the absence of a standard interference threshold for CR system, we have derived it using a tolerable capacity loss for the primary system), we assume that the received primary signal in PBS always has a desired " ".
The guideline issued by WHO (2005) [ 3] derived with a TDI (tolerable daily intake) approach from Gilman's study (1998) [ 19] and based on uranium's chemical toxicity to the kidneys assessed a LOAEL of 0.96 mg/L, equivalent to 0.06 mg/kg/day.
When testing in animals is required for risk assessment, key aspects are studies along OECD-testing guidelines with "enhanced" study designs addressing additional endpoints such as reproductive toxicity and a developmental screening test to derive health-based tolerable drinking water limits with a limited number of animals.
Using the benchmark dose- (BMD-) derived urinary Cd threshold, the tolerable weekly intake for Cd was 2.5 μg/Kg body weight, which corresponds to 25 μg/day for a person who weighs 70 kg [ 11].
The consumption of the phthalate-positive unrecorded alcohols would exceed tolerable daily intakes as derived from animal experiments.
However, it is impossible to say whether this level of protection is in fact realised with the tolerable doses that are derived by employing uncertainty factors.
In order to manage risk of ochratoxin A (OTA) in foods, we re-evaluated the tolerable daily intake (TDI), derived the negligible cancer risk intake (NCRI), and conducted a probabilistic risk assessment.
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