Difference between revisions of "Limit values for intakes of persistent pollutants via food"

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Table 1. Limit values for MeHg intakes as body weight related concentration units per day set up by various international regulating bodies.
 
Table 1. Limit values for MeHg intakes as body weight related concentration units per day set up by various international regulating bodies.
 
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{| {{prettytable}}
| TDI
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| width="80pt"|TDI
| PTWI
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| width="80pt"|PTWI
| RfD
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| width="120pt"|RfD
| Evaluation year
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| width="20pt"|Evaluation year
| Reference
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| width="450pt"|Reference
 
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Revision as of 11:19, 3 September 2008

The page includes limit values set up by international advisory and/or governing bodies regulating environmental health issues for intakes of persistent contaminants, organic or inorganic, via food. Contaminants currently included for their limit values are:

  1. Mercury (Hg) as its organic form, methylmercury (MeHg), the most readily bioaccumulated form
  2. Dioxins and furans (PCDD/F) and dioxin-like polychlorinated biphenyls (PCBs)
  3. Polybrominated diphenylethers (PBDEs)


Table 1. Limit values for MeHg intakes as body weight related concentration units per day set up by various international regulating bodies.

TDI PTWI RfD Evaluation year Reference
- - 0,1 µg/kg bw/d 2000 http://www.nap.edu/openbook.php?record_id=9899&page=11, http://books.nap.edu/openbook.php?isbn=0309071402
- - 0,3-1,0 µg/kg bw/d 1998 http://www.nap.edu/openbook.php?record_id=9899&page=72
- - 0,1 µg/kg bw/d 1997 http://www.epa.gov/ttn/oarpg/t3/reports/volume1.pdf
- - 0,025-0,06 µg/kg bw/d 1995 http://www.ehponline.org/members/1995/Suppl-6/gibert-full.html
- - 0,05 µg/kg bw/d 1995
- - 0,07 µg/kg bw/d 1993 http://www3.interscience.wiley.com/journal/119302473/abstract
- 3,3 µg/kg bw - http://www3.interscience.wiley.com/journal/119302473/abstract
0,48 µg/kg bw - - 1990 http://www.inchem.org/documents/ehc/ehc/ehc101.htm#SubSectionNumber:10.2.2
TDI=tolerable daily intake[1]
PTWI=permissible tolerable weekly intake[1]
RfD=reference dose[1]


PBDEs

For polybrominated diphenylethers there is currently no limit values available. JECFA (the Joint FAO/WHO Expert Committee on Food Additives) however has given an indicative threshold concentration at 100 µg/kg body weight/day, and concludes that ‘the limited toxicity data suggests that for the more toxic (less brominated) PBDE congeners (eg. BDE-47 and BDE-99) adverse effects would be unlikely to occur at doses of less than approximately 100 µg/kg bw per day’. FSANZ (Food Standards Australia New Zealand) concurs with the JECFA conclusions.[2]




References