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Ecological, Groundwater, and Human Health Risk Assessment in a Mining Region of Nicaragua

Publiceringsår: 2010
Språk: Engelska
Sidor: 916-933
Publikation/Tidskrift/Serie: Risk Analysis
Volym: 30
Nummer: 6
Dokumenttyp: Artikel
Förlag: Wiley InterScience


Macroinvertebrates and fish in the contaminated river are faced with a higher risk to suffer from exposure to Hg than humans eating contaminated fish and bacteria living in the groundwater. The river sediment is the most hazardous source for the macroinvertebrates, and macroinvertebrates make up the highest risk for fish. The distribution of body concentrations of Hg in fish in the mining areas of the basin may exceed the distribution of endpoint values with close to 100% probability. Similarly, the Hg concentration in cord blood of humans feeding on fish from the river was predicted to exceed the BMDLs(0.1) with about 10% probability. Most of the risk to the groundwater quality is confined to the vicinity of the gold refining plants and along the river, with a probability of about 20% to exceed the guideline value.



  • Environmental Health and Occupational Health
  • risk
  • mercury
  • Gold mining
  • hazard quotient
  • river


  • ISSN: 0272-4332

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