Aerial Application of Mancozeb and Urinary Ethylene Thiourea (ETU) Concentrations among Pregnant Women in Costa Rica: The Infants’ Environmental Health Study (ISA).

/ / Faculty Research in Latin America, Research

CGPH FACULTY: Brenda Eskenazi

DATE OF PUBLICATION: September 2014

REGION: Latin America

REFERENCE: van Wendel de Joode B, Mora AM, Córdoba L, Cano JC, Quesada R, Faniband M, Wesseling C, Ruepert C, Oberg M, Eskenazi B, Mergler D, Lindh CH. Aerial Application of Mancozeb and Urinary Ethylene Thiourea (ETU) Concentrations among Pregnant Women in Costa Rica: The Infants’ Environmental Health Study (ISA). Environ Health Perspect. 2014 Sep 8.

SUMMARY/ABSTRACT: Background: Mancozeb and its main metabolite ethylene thiourea (ETU) may alter thyroid function; thyroid hormones are essential for fetal brain development. In Costa Rica, mancozeb is aerially sprayed at large-scale banana plantations on a weekly basis. Objectives: (1) evaluate urinary ETU concentrations in pregnant women living nearby large-scale banana plantations; (2) compare their estimated daily intake (EDI) with established Reference Doses (RfDs); and (3) identify factors that predict their urinary ETU concentrations. Conclusions: The pregnant women’s urinary ETU concentrations are of concern, and the principal source of exposure is likely to be aerial spraying of mancozeb. The factors predicting ETU provide insight into possibilities for exposure reduction.

ACCESS: Link to Pubmed