Temporal Trends of Urinary Phthalate Concentrations in Two Populations: Effects of REACH Authorization after Five Years

Giovanna Tranfo, Lidia Caporossi, Daniela Pigini, Silvia Capanna, Bruno Papaleo and Enrico Paci
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Giovanna Tranfo: Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, INAIL-National Institute for Insurance against Accidents at Work, 00078 Monteporzio Catone, Italy
Lidia Caporossi: Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, INAIL-National Institute for Insurance against Accidents at Work, 00078 Monteporzio Catone, Italy
Daniela Pigini: Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, INAIL-National Institute for Insurance against Accidents at Work, 00078 Monteporzio Catone, Italy
Silvia Capanna: Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, INAIL-National Institute for Insurance against Accidents at Work, 00078 Monteporzio Catone, Italy
Bruno Papaleo: Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, INAIL-National Institute for Insurance against Accidents at Work, 00078 Monteporzio Catone, Italy
Enrico Paci: Department of Occupational and Environmental Medicine, Epidemiology and Hygiene, INAIL-National Institute for Insurance against Accidents at Work, 00078 Monteporzio Catone, Italy

IJERPH, 2018, vol. 15, issue 9, 1-13

Abstract: Phthalates are widely used in the industrial manufacture of many products. Some phthalates have shown reproductive toxicity in humans, acting as endocrine disruptors, so they were included in the authorization process defined in Reg. CE 1907/2006 (REACH). Two groups of population were recruited, before and after the inclusion of some phthalates in the authorization list in REACH: the first group of 157 volunteers was studied in 2011 and the second, 171 volunteers, in 2016. Each subject completed a questionnaire about personal lifestyle, working activities and use of chemical products. The main urinary metabolites of five phthalates were analyzed by HPLC/MS/MS: mono(2-ethylhexyl)phthalate (MEHP) and mono(2-ethyl-5-hydroxyhexyl) phthalate (MEHHP) for di(2-ethylhexyl)phthalate (DEHP) exposure; monoethylphthalate (MEP) for diethylphtahate (DEP); monobenzylphthalate (MBzP) for butylbenzylphtahalate (BBP) and dibenzylphthalate (DBzP), mono- n -butylphthalate (MnBP) for butylbenzylphtahalate (BBP) and di- n -butylphthalate (DnBP). The results show a significant difference for all metabolites between the two periods, with the exception of MEP in women. The comparison of the two sets of results shows a decrease in urinary metabolites excretion from 2011 to 2016, statistically significant for the three phthalates included in Annex XIV of REACH. DEP, not currently included in the list for authorization, maintains a constant presence in the daily life of the population, particularly for women.

Keywords: REACH regulation; phthalates; biomonitoring (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2018
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