Permeation of Malathion Through Glove Materials

Details

• Personal Author:
  Lin W ; Que Hee SS
• Description:
  A study was done to investigate malathion (121755) permeation through several rubber glove materials using an American Society for Testing and Materials (ASTM) type permeation cell and to study how the carrier, whether water, hexane, or meta(m)-xylene, affected the permeation of malathion through the various materials. Potential malathion exposures were highest when handling pure and technical grade materials and emulsifiable concentrations. Two formulations were tested: Aqua Malathion and Prentox Malathion. The major alkylbenzene inert components in both Prent and Aqua were xylenes, trimethylbenzenes, ethyl-toluenes, and propyl-benzenes. Pure malathion, undiluted malathion formulations, and 50 percent malathion/m-xylene (1330207) permeated through nitrile within 8 hours, but not through Viton or Silver Shield gloves. Malathion in a commercial formulation, in m-xylene mixtures, and in a formulation mixed with m-xylene, permeated through nitrile with slower steady state permeation rates, longer breakthrough times, and longer lag times than pure liquid malathion due to dilution and the modulating effects of the more nonpolar inert components. The influence of the carrier was also evident. The authors conclude that the bulk properties of the challenge solutions determined the permeation of the individual mixture components as well as dilution effects. Nitrile gloves should be replaced every 60 minutes when handling these two formulations. However, they will not protect against pure technical malathion. Nitrile can be used for at last 4 hours to protect against diluted formulations and diluted pure/technical malathion. [Description provided by NIOSH]
• Subjects:
  Agriculture Environmental Monitoring Insecticides Occupational Health Organophosphates Personal Protective Equipment Protective Clothing Safety
• Keywords:
  Agricultural-chemicals Control-technology Exposure-assessment Exposure-levels Exposure-limits Gloves Hand-protection NIOSH-Grant NIOSH-Publication Organo-phosphorus-compounds Organo-phosphorus-pesticides Personal-protective-equipment Pesticides Protective-clothing

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• ISSN:
  1047-322X
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  California ; OSHA Region 9
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  158-165
• Volume:
  13
• Issue:
  3
• NIOSHTIC Number:
  nn:00241991
• Citation:
  Appl Occup Environ Hyg 1998 Mar; 13(3):158-165
• Contact Point Address:
  Environmtl/occupatnl Hlth Scis UCLA School of Public Health 10833 LE Conte Avenue Los Angeles, CA 90024-1772
• CAS Registry Number:
  Malathion (CAS RN 121-75-5) ; Xylene (CAS RN 1330-20-7)
• Federal Fiscal Year:
  1998
• NORA Priority Area:
  Research Tools and Approaches: Intervention Effectiveness Research
• Performing Organization:
  University of California Los Angeles, Los Angeles, California
• Peer Reviewed:
  True
• Start Date:
  19920930
• Source Full Name:
  Applied Occupational and Environmental Hygiene
• End Date:
  19990331
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:0a96b5aee6e457853dcd40ca84e0823700e7566e7ff3bb2e983105ead119b1f4b82529a7a70875a389d189751278569d9855a8090810610bbddc787695191c56
• Download URL:
  https://stacks.cdc.gov/view/cdc/198133/cdc_198133_DS1.pdf
• File Type:
  [PDF - 969.63 KB ]