Pesticide exposure during greenhouse applications. III. Variable exposure due to ventilation conditions and spray pressure

Details

• Personal Author:
  Fenske RA ; Methner, Mark M.
• Description:
  The effectiveness of ventilation systems and application pressures in greenhouses was evaluated for their ability to protect workers from dermal and respiratory exposure to pesticides. Six workers were monitored with patch techniques and sampling of air during greenhouse gunning applications. Two application pressures (40 and 120 pounds/square inch) and three ventilation conditions (low velocity unidirectional, multidirectional, and no ventilation) were examined. A fluorescent whitening agent tracer was used as a surrogate for pesticides. Results clearly showed that an interaction between application pressure and ventilation condition occur during greenhouse handgunning applications. Mean total body, back, upper arm, and forearm dermal deposition rates increased significantly when application pressure was increased under unidirectional ventilation. The total body rate decreased significantly under multidirectional ventilation when application pressure increased. Tracer deposition rates during low pressure, unidirectional applications were significantly less than low pressure, no ventilation applications for all regions except the chest, upper legs, and lower legs. Deposition rates during multidirectional ventilation were significantly greater than the other ventilation conditions at either pressure except for the back at high pressure. At both application pressures, breathing zone contamination under unidirectional and multidirectional ventilation was three and four fold lower, respectively, than under no ventilation. Unidirectional ventilation reduced dermal and breathing zone contamination, whereas multidirectional ventilation increased dermal exposure but reduced breathing zone contamination. The authors conclude that careful characterization of both dermal and respiratory exposure is needed during greenhouse handgunning applications. [Description provided by NIOSH]
• Subjects:
  Environmental Monitoring Insecticides Occupational Health Safety Skin Ventilation
• Keywords:
  Air-sampling Exhaust-ventilation Gardeners Grants-other NIOSH-Grant NIOSH-Publication Pesticide-residues Skin-exposure Ventilation-equipment Ventilation-systems
• ISSN:
  1047-322X
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  New Jersey ; OSHA Region 2
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  174-180
• Volume:
  11
• Issue:
  3
• NIOSHTIC Number:
  nn:00232142
• Citation:
  Appl Occup Environ Hyg 1996 Mar; 11(3):174-180
• Contact Point Address:
  Environmental Sciences Rutgers University P O Box 231, Cook College New Brunswick, N J 08903
• Federal Fiscal Year:
  1996
• NORA Priority Area:
  Other Occupational Concerns ; Grants Other
• Performing Organization:
  Rutgers the State Univ New Brunswick, New Brunswick, New Jersey
• Peer Reviewed:
  True
• Start Date:
  19870501
• Source Full Name:
  Applied Occupational and Environmental Hygiene
• End Date:
  19900430
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:c9de63e5ece88858d35fc95fa82e49edb000af9de9c56edd5594f335a65062f18bdc0ad221587c126031ccd09441e259a92308ad7b2f085be5b8a730b7638af6
• Download URL:
  https://stacks.cdc.gov/view/cdc/205358/cdc_205358_DS1.pdf
• File Type:
  [PDF - 1016.37 KB ]