Organic diet intervention significantly reduces urinary pesticide levels in U.S. children and adults

Copyright © 2019 The Authors. Published by Elsevier Inc. All rights reserved..

BACKGROUND: Previous diet intervention studies indicate that an organic diet can reduce urinary pesticide metabolite excretion; however, they have largely focused on organophosphate (OP) pesticides. Knowledge gaps exist regarding the impact of an organic diet on exposure to other pesticides, including pyrethroids and neonicotinoids, which are increasing in use in the United States and globally.

OBJECTIVE: To investigate the impact of an organic diet intervention on levels of insecticides, herbicides, and fungicides or their metabolites in urine collected from adults and children.

METHODS: We collected urine samples from four racially and geographically diverse families in the United States before and after an organic diet intervention (n = 16 participants and a total of 158 urine samples).

RESULTS: We observed significant reductions in urinary levels of thirteen pesticide metabolites and parent compounds representing OP, neonicotinoid, and pyrethroid insecticides and the herbicide 2,4-D following the introduction of an organic diet. The greatest reductions were observed for clothianidin (- 82.7%; 95% confidence interval [95% CI]: - 86.6%, - 77.6%; p < 0.01), malathion dicarboxylic acid (MDA), a metabolite of malathion (- 95.0%; 95% CI: - 97.0%, - 91.8%; p < 0.01), and 3,5,6-trichlor-2-pyridinol (TCPy), a metabolite of chlorpyrifos (- 60.7%; 95% CI: - 69.6%, - 49.2%; p < 0.01). Metabolites or parent compounds of the fungicides boscalid, iprodione, and thiabendazole and the neonicotinoid insecticide imidacloprid were not detected among participants in our study.

CONCLUSION: An organic diet was associated with significant reductions in urinary excretion of several pesticide metabolites and parent compounds. This study adds to a growing body of literature indicating that an organic diet may reduce exposure to a range of pesticides in children and adults. Additional research is needed to evaluate dietary exposure to neonicotinoids, which are now the most widely used class of insecticides in the world.

Medienart:

E-Artikel

Erscheinungsjahr:

2019

Erschienen:

2019

Enthalten in:

Zur Gesamtaufnahme - volume:171

Enthalten in:

Environmental research - 171(2019) vom: 15. Apr., Seite 568-575

Sprache:

Englisch

Beteiligte Personen:

Hyland, Carly [VerfasserIn]
Bradman, Asa [VerfasserIn]
Gerona, Roy [VerfasserIn]
Patton, Sharyle [VerfasserIn]
Zakharevich, Igor [VerfasserIn]
Gunier, Robert B [VerfasserIn]
Klein, Kendra [VerfasserIn]

Links:

Volltext

Themen:

Biomonitoring
Chlorpyrifos
Exposure
Insecticides
JCS58I644W
Journal Article
Neonicotinoid pesticides
Organic diet
Pesticides
Pyrethrins
Research Support, Non-U.S. Gov't

Anmerkungen:

Date Completed 09.12.2019

Date Revised 17.12.2019

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.envres.2019.01.024

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM293906157