Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Risk-based evaluation of the exposure of children to trace elements in playgrounds in Madrid (Spain).
Year:2007
Research Areas
  • Mining industry
Information
Abstract
Eighty samples of sandy substrate were collected in November 2002 and 2003, from 20 municipal playgrounds in Madrid (Spain) to assess the potential adverse health effects of the exposure of children to trace elements in this material during their games. In each playground, two 500 g samples were collected, dried at 45 C for 48 h, sieved below 100 lm, acid digested and analyzed by ICP-MS. Doses contacted through ingestion and inhalation and the dose absorbed through the skin were calculated using USEPAs hourly exposure parameters for children and the results of an in situ survey. The toxicity values considered in this study were mostly taken from the US DoEs RAIS compilation. The results of the risk assessment indicate that the highest risk is associated with ingestion of soil particles and that the trace element of most concern is arsenic, the exposure to which results in a cancer risk value of 4.19 · 106, close to the 1 · 105 probability level deemed unacceptable by most regulatory agencies. Regarding non-cancer effects, exposure to playground substrate yields an aggregate Hazard Index of 0.28, below the threshold value of 1 (with As, again, as the largest single contributor, followed by Pb, Cr, Al and Mn). Although the uncertainties associated with the estimates of toxicity values and exposure factors should be reduced before any definite conclusions regarding potential health effects are drawn, risk assessment has proven to be a very useful tool to identify the contaminants and exposure pathways of most concern in urban environments.
International
Si
JCR
Si
Title
CHEMOSPHERE
ISBN
0045-6535
Impact factor JCR
2,739
Impact info
Volume
66
Journal number
0
From page
505
To page
513
Month
SIN MES
Ranking
Participants
  • Participante: ALMUDENA ORDÓÑEZ ALONSO (UNIVERSIDAD DE OVIEDO)
  • Participante: INÉS IRIBARREN CAMPAÑA (INSTITUTO GEOLÓGICO Y MINERO DE ESPAÑA)
  • Autor: Eduardo de Miguel Garcia (UPM)
  • Participante: SUE CHARLESWORTH (COVENTRY UNIVERSITY)
  • Participante: ENRIQUE CHACÓN OREJA (Departamento: Matemática Aplicada a los Recursos Naturales)
Research Group, Departaments and Institutes related
  • Creador: Departamento: Ingeniería Química y Combustibles
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