Urinary phthalate metabolite concentrations among workers in selected industries: A pilot biomonitoring study

Hines, CJ; Nilsen Hopf, NB; Deddens, JA; Calafat, AM; Silva, MJ; Grote, AA; Sammons, DL

HERO ID

1005742

Reference Type

Journal Article

Year

2009

Language

English

PMID

18948546

HERO ID 1005742
In Press No
Year 2009
Title Urinary phthalate metabolite concentrations among workers in selected industries: A pilot biomonitoring study
Authors Hines, CJ; Nilsen Hopf, NB; Deddens, JA; Calafat, AM; Silva, MJ; Grote, AA; Sammons, DL
Journal Annals of Occupational Hygiene
Volume 53
Issue 1
Page Numbers 1-17
Abstract Phthalates are used as plasticizers and solvents in industrial, medical and consumer products; however, occupational exposure information is limited. We sought to obtain preliminary information on occupational exposures to diethyl phthalate (DEP), di-n-butyl phthalate (DBP) and di(2-ethylhexyl) phthalate (DEHP) by analyzing for their metabolites in urine samples collected from workers in a cross-section of industries. We also obtained data on metabolites of dimethyl phthalate (DMP), benzylbutyl phthalate (BzBP), di-isobutyl phthalate and di-isononyl phthalate. We recruited 156 workers in 2003-2005 from eight industry sectors. We assessed occupational contribution by comparing end-shift metabolite concentrations to the US general population. Evidence of occupational exposure to DEHP was strongest in polyvinyl chloride (PVC) film manufacturing, PVC compounding and rubber boot manufacturing where geometric mean (GM) end-shift concentrations of DEHP metabolites exceeded general population levels by 8-, 6- and 3-fold, respectively. Occupational exposure to DBP was most evident in rubber gasket, phthalate (raw material) and rubber hose manufacturing, with DBP metabolite concentrations exceeding general population levels by 26-, 25- and 10-fold, respectively, whereas DBP exposure in nail-only salons (manicurists) was only 2-fold higher than in the general population. Concentrations of DEP and DMP metabolites in phthalate manufacturing exceeded general population levels by 4- and >1000-fold, respectively. We also found instances where GM end-shift concentrations of some metabolites exceeded general population concentrations even when no workplace use was reported, e.g. BzBP in rubber hose and rubber boot manufacturing. In summary, using urinary metabolites, we successfully identified workplaces with likely occupational phthalate exposure. Additional work is needed to distinguish occupational from non-occupational sources in low-exposure workplaces.
Doi 10.1093/annhyg/men066
Pmid 18948546
Wosid WOS:000262329300001
Url https://search.proquest.com/docview/66805735?accountid=171501
Is Certified Translation No
Dupe Override No
Is Public Yes
Language Text English
Keyword Biomarkers; Phthalic Acids; Plasticizers; Solvents; phthalic acid; 6O7F7IX66E; Index Medicus; Environmental Monitoring -- methods; Pilot Projects; Solvents -- pharmacokinetics; Middle Aged; Biomarkers -- urine; Plasticizers -- pharmacokinetics; Occupational Exposure -- analysis; Phthalic Acids -- urine
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