Soil Contamination from PCB-Containing Buildings

Details

• Personal Author:
  Herrick, Robert F. ; Lefkowitz DJ ; Weymouth GA
• Description:
  BACKGROUND: Polychlorinated biphenyls (PCBs) in construction materials, such as caulking used around windows and expansion joints, may constitute a source of PCB contamination in the building interiors and in surrounding soil. Several studies of soil contamination have been conducted around buildings where the caulking has been removed by grinding or scraping. The PCBs in soil may have been generated in the process of removing the caulking, but natural weathering and deterioration of the caulking may have also been a source. OBJECTIVES: The objectives of this study were to measure PCB levels in soil surrounding buildings where PCB-containing caulk was still in place, and to evaluate the mobility of the PCBs from caulking using the Toxicity Characteristic Leaching Procedure (U.S. Environmental Protection Agency Method 1311). DISCUSSION: We found soil PCB contamination ranging from 3.3 to 34 mg/kg around buildings with undisturbed caulking that contained 10,000-36,200 mg/kg PCBs. The results of the Toxicity Characteristic Leaching Procedure (leachate concentrations of 76-288 mg PCB/L) suggest that PCBs in caulking can be mobilized, apparently as complexes with dissolved organic matter that also leach off the caulking material. CONCLUSIONS AND RECOMMENDATIONS: Although these new findings are based on a small sample size, they demonstrate the need for a national survey of PCBs in building materials and in soil surrounding these buildings. Because the buildings constructed during the time the PCB caulking was in use (1960s and 1970s) include schools, hospitals, and apartment buildings, the potential for exposure of children is a particular concern. It is necessary to reconsider the practice of disposing of old PCB caulking removed during building renovations in conventional landfills, given the apparent mobility of PCBs from the caulking material. Disposal of some caulking material in nonhazardous landfills might lead to high PCB levels in landfill leachate. [Description provided by NIOSH]
• Subjects:
  Chemistry Construction Industry Construction Materials Environmental Exposure Occupational Health Polychlorinated Biphenyls Risk Assessment Risk Factors Safety
• Keywords:
  Author Keywords: Caulk Chemical Properties Children Construction Construction Materials Environmental Exposure Exposure Levels Hazards Humans Leachability PCB PCBs Pollutants Polychlorinated Biphenyl Polychlorinated Biphenyls Public Buildings Risk Factors Sampling Schools Soil Soil Mechanics

  More +
• ISSN:
  0091-6765
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  Massachusetts ; OSHA Region 1
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  173-175
• Volume:
  115
• Issue:
  2
• NIOSHTIC Number:
  nn:20056888
• Citation:
  Environ Health Perspect 2007 Feb; 115(2):173-175
• Contact Point Address:
  R.F. Herrick, Department of Environmental Health, Landmark Center, 401Park Dr., Room 404E, Boston, MA 02215
• Email:
  herrick@hohp.harvard.edu
• CAS Registry Number:
  1,1′-Biphenyl, chloro derivs. (CAS RN 1336-36-3)
• Federal Fiscal Year:
  2007
• Performing Organization:
  Harvard School of Public Health
• Peer Reviewed:
  True
• Start Date:
  20050701
• Source Full Name:
  Environmental Health Perspectives
• End Date:
  20280630
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:dcc5adf62bdc5f0c160fe97f35a8dbc3202086b9ea1c4124671f51293437ea7eacb1fbb7aa13bc52ab3dbd4a7f0372dea3a6bee53700924eff747ff43183f86c
• Download URL:
  https://stacks.cdc.gov/view/cdc/214384/cdc_214384_DS1.pdf
• File Type:
  [PDF - 513.17 KB ]