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Estimating exposures from spray products using robotic simulations.

Mi K Shin1, Hua Qian1, Jee-Eun Lee2

  • 1ExxonMobil Biomedical Sciences Inc., 1545 Route 22 East, Annandale, NJ 08801, United States.

Annals of Work Exposures and Health
|September 5, 2023
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Summary

A robotic arm mimicked human use of spray products to measure inhalation exposure to volatile organic compounds (VOCs). This method provides crucial data for public health risk assessments, especially for fabric protector sprays.

Keywords:
air samplingexposure datafabric protectorglass cleanervolatile organic compounds

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Area of Science:

  • Environmental Health
  • Occupational Safety
  • Toxicology

Background:

  • Accurate exposure data is vital for precise risk estimates and public health protection.
  • Human research studies for personal monitoring are resource-intensive and challenging to conduct.
  • Robotic simulation offers a viable alternative for collecting exposure data.

Purpose of the Study:

  • To develop and validate a robotic method for assessing inhalation exposure to volatile organic compounds (VOCs).
  • To measure VOCs during the use of a fabric crafts protector (FCP) and a glass cleaner (GC).
  • To contribute exposure data for improving health and safety risk assessments.

Main Methods:

  • A robotic arm was programmed to simulate human spraying of FCP and spraying/wiping of GC.
  • Air sampling was conducted during robotic use of the products to measure VOC concentrations.
  • Data collected were compared with existing literature values for similar products.

Main Results:

  • Average VOC concentrations: 1.57 ppm for FCP spraying, 0.17 ppm for GC spraying/wiping.
  • Specific VOCs measured: acetone (0.88 ppm) and isopropyl alcohol (0.26 ppm) during FCP use; 2-butoxyethanol (0.15 ppm) during GC use.
  • GC data aligned with literature values for human use; FCP data provided novel insights.

Conclusions:

  • Robotic simulation is an efficient and systematic method for generating reliable inhalation exposure data.
  • This approach enhances the characterization of exposure to VOCs from spray products.
  • The study supports improved public health protection through better risk assessment methodologies.