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Updated: Feb 11, 2026
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Quantification of the Potential Impact of Glyphosate-Based Products on Microbiomes
Published on: January 10, 2022
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Glyphosate in Irish adults - A pilot study in 2017
Alison Connolly1, Michelle Leahy1, Kate Jones2
1Centre for Climate and Air Pollution Studies, School of Physics and the Ryan Institute, National University of Ireland, University Road, Galway H91 CF50, Ireland.
Environmental Research
|May 6, 2018
Summary
Glyphosate, a common herbicide, was detected in 20% of Irish adults
Area of Science:
- Environmental Health
- Toxicology
- Biomonitoring
Background:
- Glyphosate is the world's most used herbicide.
- The International Agency for Research on Cancer (IARC) classifies glyphosate as 'probably carcinogenic to humans'.
- Data on public health impacts of glyphosate exposure is limited.
Purpose of the Study:
- To conduct an exploratory glyphosate exposure assessment.
- To evaluate glyphosate exposure in non-occupational users among Irish adults.
- To provide data for understanding potential human health risks.
Main Methods:
- Biomonitoring survey of 50 Irish adults in June 2017.
- Collection of first morning void spot urine samples.
- Analysis of glyphosate using solid phase extraction and LC-MS/MS.
Main Results:
- Glyphosate was detected in 10 out of 50 (20%) urine samples.
- Detected glyphosate levels ranged from 0.80-1.35 µg/L.
- Exposure concentrations were higher than in comparable European and American studies.
Conclusions:
- Glyphosate exposure was confirmed in 20% of the studied Irish adult population.
- Low detection rates may be due to sample size or analytical limits, necessitating further investigation.
- More research is needed to understand population exposure and chronic low-dose effects on human health.
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