Follow-Up on Mount St. Helens: 1980/07/18

Details

• Journal Article:
  Morbidity and Mortality Weekly Report (MMWR)
• Corporate Authors:
  National Institute for Occupational Safety and Health. Bureau of Epidemiology
• Description:
  From June 3-13, industrial hygienists from the National Institute for Occupational Safety and Health (NIOSH) collected personal and area samples in northern Idaho and in 5 Washington communities (Longview, Chehalis, Moses Lake, Yakima, and Spokane) that were subjected to ash from either the May 18 or 25 eruptions of Mount St. Helens. The objective of this survey was to assess occupational exposures and community breathing zone concentrations of respirable dust. Samples of ash taken from these areas were analyzed by the NIOSH laboratories. The particles of these samples that were of respirable size ≤10 microns) have consistently been found to contain approximately 6% free crystalline silica (SiO2), of which 2% is quartz and 4% is cristobalite. [Description provided by NIOSH]
• Subjects:
  Air Pollutants, Occupational Community Health Services Dust Environmental Exposure Environmental Pollution Epidemiology Hazardous Substances Laboratories Lung Occupational Exposure Occupational Health Particulate Matter Quartz Respiratory System Safety Silicon Dioxide

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• Keywords:
  Airborne Particles Breathing Zone Community Health Dust Exposure Environmental Contamination Environmental Health Monitoring Environmental Pollution Exposure Assessment Hazardous Materials Health Effects Humans Laboratory Testing Occupational Exposure Particulate Dust Pulmonary Effects Quartz Dust Respirable Dust Sampling Silica Dusts Silicon Dioxide Surveillance Volcanic Ash Volcanoes

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• Series:
  Weekly Report: Morbidity and Mortality Weekly Report (MMWR)
• ISSN:
  0149-2195 (print) ; 1545-861X (digital)
• Publisher:
  Centers for Disease Control and Prevention (CDC) (U.S.)
• Document Type:
  Text
• Genre:
  Journal Article
• Place as Subject:
  Washington ; OSHA Region 10
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  5 pdf pages
• Volume:
  29
• Issue:
  28
• NIOSHTIC Number:
  nn:20054698
• Citation:
  MMWR 1980 Jul; 29(28):334-336,341
• CAS Registry Number:
  Cristobalite (CAS RN 14464-46-1) ; Quartz (SiO2) (CAS RN 14808-60-7) ; Silica (CAS RN 7631-86-9)
• Federal Fiscal Year:
  1980
• Peer Reviewed:
  False
• Collection(s):
  National Institute for Occupational Safety and Health Morbidity and Mortality Weekly Report (MMWR)
• Main Document Checksum:
  urn:sha-512:0177433202e745b17d8b702aa4e6e1242b56dc5045ad77cb116c27eb660d85cab502acfafb03c0183092b16f2693e3171f2e370790c099417f9349c63f07eae0
• Download URL:
  https://stacks.cdc.gov/view/cdc/183118/cdc_183118_DS1.pdf
• File Type:
  [PDF - 382.25 KB ]