Article Text

PDF

452 A pesticide exposure study using 24-hour biomonitoring and dermal sampling to determine total uptake and the routes of exposure
  1. Alison Connolly1,
  2. Kate Jones2,
  3. Karen S Galea3,
  4. Ioannis Basinas3,
  5. Laura Kenny2,
  6. Padraic McGowan4,
  7. Marie Coggins1
  1. 1Centre for Climate and Air Pollution Studies, School of Physics, National University of Ireland, Galway, Ireland
  2. 2Health and Safety Laboratory (HSL), Harpur Hill, Buxton, UK
  3. 3Centre for Human Exposure Science (CHES), Institute of Occupational Medicine (IOM), Edinburgh, UK
  4. 4Irish Commissioners for Public Works, Jonathon Swift Street, Trim, Co Meath, Ireland

Abstract

Introduction A pilot exposure assessment study using biomonitoring was conducted in Ireland to determine the likelihood of exposure to pesticides among amenity horticulturalists. A spot sampling approach was employed of workers using pesticides, had urinary pesticide concentrations in post-work samples with a geometric mean (geometric standard deviation) of 0.66 (1.11) µg L-1 for glyphosate and 0.29 (1.69) µg L-1 for fluroxypyr. The study showed a potential for pesticide exposure during horticulture amenity work, higher than average environmental exposure levels and warranted further investigation.

Methods In 2017, an exposure assessment study involving 24 hour biomonitoring will take place to evaluate pesticide exposure among these workers. Workers will be grouped into four similar exposure groups based on application method and active ingredient used, glyphosate or fluroxypyr. Three urine samples will be collected for each task, a sample before the task begins, a sample within one hour of the task completion and a following morning void. The potential routes of exposure, will be examined through the collection of additional dermal, glove and potentially contaminated object wipe samples. Dermal wipes of the hands and the perioral region will be taken before and after the task and glove analysis will be conducted. Detailed contextual information will be collected by the researcher to support all samples collected.

Results The biomonitoring results will indicate the extent of pesticide uptake for each task. Correlation between the dermal and biomonitoring samples will be investigated to explore the contribution of dermal exposure. The perioral and the contaminated object wipes alongside the contextual information will be used to determine the potential exposure from inadvertent ingestion.

Discussion This study will provide a comprehensive biomonitoring dataset describing amenity horticultural user’s exposure to glyphosate and fluroxypyr and the contribution of dermal and inadvertent ingestion routes on total body burden of pesticides.

  • Occupational exposure
  • urine
  • glyphosate

Statistics from Altmetric.com

Request Permissions

If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.