Occupational exposure to microorganisms used as biocontrol agents in plant production

Anne Mette Madsen1

  • 1The National Research Centre for the Working Environment, Lersoe Parkalle 105, 2100 Copenhagen OE, Denmark. amm@nrcwe.dk

Insights

Exposure to microbiological pest control agents (MPCAs) can pose health risks. This review assesses whether occupational or residential exposure to MPCAs exceeds background levels, focusing on aerosolization and inhalation risks.

Area of Science:

  • Environmental microbiology
  • Occupational health
  • Risk assessment

Background:

  • Bioaerosols from fungi and bacteria can cause respiratory issues.
  • Microbiological pest control agents (MPCAs) are commercially produced and applied in the environment.
  • Concerns exist regarding exposure and health risks associated with MPCA use.

Purpose of the Study:

  • To evaluate if MPCA exposure exceeds background levels.
  • To assess aerosolization of MPCAs in relation to human inhalation.
  • To review existing exposure data for various MPCAs.

Main Methods:

  • Literature review of studies on MPCA exposure.
  • Analysis of aerosolization data for MPCAs.
  • Comparison of MPCA exposure levels with background bioaerosol concentrations.

Main Results:

  • Exposure to MPCAs occurs in occupational settings and residential areas post-application.
  • Highest MPCA exposures are observed in individuals applying the agents.
  • In some environments, applied MPCAs were found at higher concentrations than total background fungi and bacteria.

Conclusions:

  • MPCA application leads to human exposure.
  • Occupational handling presents the highest exposure risk.
  • Further research is needed to fully understand inhalation risks from MPCA aerosolization.

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