| Daily intake of di(2-ethylhexyl)phthalate (DEHP) by German children -- A comparison of two estimation models based on urinary DEHP metabolite levels. | |
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MedLine Citation:
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PMID: 17185035 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Di(2-ethylhexyl)phthalate (DEHP) is a general-purpose plasticizer for polyvinyl chloride (PVC) and has become a ubiquitous environmental contaminant. It is suspected to be an endocrine disrupting/modulating substance in humans. Children are of special concern due to their developmental state. In our study we estimated the daily DEHP intake of 239 children aged 2-14 years by extrapolating from their urinary levels of the DEHP metabolites mono-(2-ethyl-5-hydroxyhexyl)phthalate (5OH-MEHP), mono-(2-ethyl-5-oxohexyl)phthalate (5oxo-MEHP) and mono-(2-ethylhexyl)phthalate (MEHP). We applied two calculation models based upon the volume and the creatinine-related urinary metabolite concentrations. Applying the volume- or the creatinine-based calculation model we determined a median daily DEHP intake of 7.8 or 4.3 microg/kgbody weight (bw)/day and a 95th percentile of 25.2 or 15.2 microg/kgbw/day. Three children (1%) exceeded the value of the tolerable daily intake (TDI) of the European Food Safety Authority of 50 microg/kgbw/day, while 7.5% or 3% (depending on the calculation model) exceeded the reference dose (RfD) of 20 microg/kgbw/day of the US Environmental Protection Agency. In general, DEHP exposure was decreasing with increasing age and boys had higher exposures than girls. Our findings suggest that the majority of the children in the general population is exposed to quantities of DEHP below the TDI and the RfD. However, many children scoop out the preventive limit values to a considerable degree and in individual cases we observed substantial transgressions. Younger children seem to be more severely burdened, which may be due to a higher food consumption related to their bw, mouthing behaviour and/or playing near the ground. |
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Authors:
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Matthias Wittassek; Wolfgang Heger; Holger M Koch; Kerstin Becker; Jürgen Angerer; Marike Kolossa-Gehring |
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Publication Detail:
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Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't Date: 2006-12-20 |
Journal Detail:
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Title: International journal of hygiene and environmental health Volume: 210 ISSN: 1438-4639 ISO Abbreviation: Int J Hyg Environ Health Publication Date: 2007 Jan |
Date Detail:
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Created Date: 2007-01-22 Completed Date: 2007-04-05 Revised Date: 2007-06-21 |
Medline Journal Info:
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Nlm Unique ID: 100898843 Medline TA: Int J Hyg Environ Health Country: Germany |
Other Details:
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Languages: eng Pagination: 35-42 Citation Subset: IM |
Affiliation:
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Institute and Outpatient Clinic of Occupational, Social and Enironmental Medicine, University of Erlangen-Nuremberg, Germany. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Child Child, Preschool Diethylhexyl Phthalate / analogs & derivatives*, analysis*, metabolism, urine Environmental Exposure / analysis* Environmental Pollutants / urine Female Germany Humans Male Models, Biological* Phthalic Acids / urine* Plasticizers / analysis, metabolism |
| Chemical | |
Reg. No./Substance:
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0/Environmental Pollutants; 0/Phthalic Acids; 0/Plasticizers; 0/mono(2-ethyl-5-hydroxyhexyl) phthalate; 117-81-7/Diethylhexyl Phthalate; 40321-98-0/mono(2-ethyl-5-oxohexyl)phthalate; 4376-20-9/mono-(2-ethylhexyl)phthalate |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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