Assessing Airborne Aflatoxin B1 During On-Farm Grain Handling Activities

Details

• Personal Author:
  Juchems AM ; Popendorf W ; Selim MI
• Description:
  The presence of aflatoxin in corn and corn dust during relatively normal years and the increased risk of Aspergillus flavus infestation during drought conditions suggest that airborne agricultural exposures should be of considerable concern. Liquid extraction, thin layer chromatography, and high pressure liquid chromatography were used for the analysis of aflatoxin B1 in grain dust and bulk corn samples. A total of 24 samples of airborne dust were collected from 8 farms during harvest, 22 samples from 9 farms during animal feeding, and 14 sets of Andersen samples from 11 farms during bin cleaning. A total of 14 samples of settled dust and 18 samples of bulk corn were also collected and analyzed. The airborne concentration of aflatoxin B1 found in dust collected during harvest and grain unloading ranged from 0.04 to 92 ng/m3. Higher levels of aflatoxin B1 were found in the airborne dust samples collected from enclosed animal feeding buildings (5-421 ng/m3) and during bin cleaning (124-4849 ng/m3). Aflatoxin B1 up to 5100 ng/g were detected in settled dust collected from an enclosed animal feeding building; however, no apparent correlation was found between the airborne concentration of aflatoxin B1 and its concentration in settled dust or bulk corn. The data demonstrate that farmers and farm workers may be exposed to potentially hazardous concentrations of aflatoxin B1, particularly during bin cleaning and animal feeding in enclosed buildings. [Description provided by NIOSH]
• Subjects:
  Agriculture Air Pollutants, Occupational Dust Farmers Fungi Microbiology Mycoses Occupational Health Particulate Matter Respiratory Function Tests Safety

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• Keywords:
  Agricultural-workers Airborne-particles Aspergillus Flavus Author Keywords: Aflatoxin Dust-analysis Exposure-levels Exposure-limits Farm Workers Grain-dusts Grain Handling Operations Microorganisms Molds Mycotoxins Respiratory-function-tests Sampling Sampling-methods

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• ISSN:
  0002-8894
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Iowa ; Minnesota ; OSHA Region 5 ; OSHA Region 7 ; OSHA Region 8 ; Utah
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  252-256
• Volume:
  59
• Issue:
  4
• NIOSHTIC Number:
  nn:20023160
• Citation:
  Am Ind Hyg Assoc J 1998 Apr; 59(4):252-256
• Contact Point Address:
  Department of Preventive Medicine and Environmental Health, University of Iowa, Iowa City 52242, USA
• Federal Fiscal Year:
  1998
• Performing Organization:
  University of Iowa, Iowa City, Iowa
• Peer Reviewed:
  True
• Start Date:
  19910501
• Source Full Name:
  American Industrial Hygiene Association Journal
• End Date:
  19980531
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:f8b0dc1b8c0ecfffefc55d904b101db184ee7b89a9180bdc191259c96df88e5a6ed6720a9f972339112cfa5bfbf3106d32354a9f29df09c04547da951bed0826
• Download URL:
  https://stacks.cdc.gov/view/cdc/195738/cdc_195738_DS1.pdf
• File Type:
  [PDF - 138.08 KB ]