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HERO ID
3859104
Reference Type
Journal Article
Title
Health risk assessment of exposures to a high molecular weight plasticizer present in automobile interiors
Author(s)
Perez, AL; Liong, M; Plotkin, K; Rickabaugh, KP; Paustenbach, DJ
Year
2017
Is Peer Reviewed?
Yes
Journal
Chemosphere
ISSN:
0045-6535
EISSN:
1879-1298
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Location
OXFORD
Volume
167
Page Numbers
541-550
Language
English
PMID
27769007
DOI
10.1016/j.chemosphere.2016.10.007
Web of Science Id
WOS:000388543400063
URL
https://search.proquest.com/docview/1846399215?accountid=171501
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Abstract
This study provides an exposure and risk assessment of diundecyl phthalate (DUP), a high molecular weight phthalate plasticizer present in automobile interiors. Total daily intake of DUP was calculated from DUP measured in wipe samples from vehicle seats from six automobiles. Four of the vehicles exhibited atypical visible surface residue on the seats. Two vehicles with no visible surface residue were sampled as a comparison. DUP was the predominant organic compound identified in each of the wipes from all seats. A risk assessment of DUP via oral, dermal, and inhalation routes resulting from contact with automobile seats was conducted. The mean, standard deviation, and maximum DUP concentrations on the seats with visible surface residue were 6983 ± 7823 μg/100 cm(2) and 38300 μg/100 cm(2), respectively. The mean and 95th percentile of the mean for daily cumulative dose of DUP for all exposure routes for the seats with no visible surface residue ranged from 7 × 10(-4) to 4 × 10(-3) mg/kg-day and from 8 × 10(-4) to 5 × 10(-3) mg/kg-day, respectively. For seats with visible surface residue, cumulative doses ranged from 2 × 10(-3) to 2 × 10(-2) mg/kg-day and from 4 × 10(-3) to 2 × 10(-2) mg/kg-day, respectively. The estimated daily intake (contact or absorbed dose) of DUP from automobile seats were far lower than the NOAELs reported in and derived from animal studies, and are well below the reported Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH) Derived No Effect Levels (DNELs) for the general population. Based on this analysis, using virtually any benchmark for evaluating safety, exposure to DUP via automobile seat covers did not pose a measureable increased health-risk in any population under any reasonably plausible exposure scenario.
Keywords
Air Pollutants/analysis/chemistry; Air Pollution, Indoor/analysis; Animals; Automobiles/standards; Inhalation Exposure/analysis; Molecular Weight; No-Observed-Adverse-Effect Level; Phthalic Acids/analysis/chemistry; Plasticizers/analysis/chemistry; Risk Assessment; Exposure assessment; High molecular weight plasticizer; Phthalate
Tags
IRIS
•
Phthalates – Targeted Search for Epidemiological Studies
Source – all searches
Pubmed
Excluded
Source - August 2017 Update (Private)
Pubmed
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