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Radon in Devon and Cornwall and paediatric malignancies

R Thorne1, N K Foreman, M G Mott

  • 1Department of Paediatric Oncology, Royal Hospital for Sick Children, Bristol, U.K.

European Journal of Cancer (Oxford, England : 1990)
|February 1, 1996
PubMed
Summary

Radon exposure in homes may increase cancer risk. This study found no overall link between high radon levels and childhood cancers in Devon and Cornwall, but noted a potential increase in neuroblastoma cases.

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Area of Science:

  • Environmental Health
  • Paediatric Oncology
  • Epidemiology

Background:

  • Radon gas exposure in dwellings is a known risk factor for cancer, including childhood malignancies.
  • Devon and Cornwall exhibit the highest radon exposure levels in England, with significant geographical variations.
  • Previous research indicates a potential link between radon and various cancers, necessitating localized studies.

Purpose of the Study:

  • To investigate the association between residential radon exposure and the incidence of childhood malignancies in Devon and Cornwall.
  • To compare childhood cancer rates in postcode sectors with high radon exposure (≥100 Bq/m3) versus low exposure (<100 Bq/m3).

Main Methods:

  • Utilized published radon exposure data for 283 postcode sectors in Devon and Cornwall.
  • Analyzed childhood malignancy incidence data from 1976 to 1985.
  • Compared cancer rates between high and low radon exposure postcode sectors using statistical analysis.

Main Results:

  • No significant difference was found in the overall incidence rate of childhood malignancies between high radon exposure sectors (106.7 per million child years) and low exposure sectors (121.7 per million child years) (P = 0.29).
  • A statistically significant increase in the incidence of neuroblastoma was observed in high radon exposure postcode sectors (P = 0.02).
  • A non-significant increase in acute myeloid leukaemia incidence was also noted in high radon exposure areas.

Conclusions:

  • Overall residential radon exposure was not significantly associated with childhood malignancy rates in the studied region.
  • Specific childhood cancers, notably neuroblastoma, may be associated with higher residential radon exposure levels.
  • Further research is warranted to elucidate the specific relationship between radon exposure and paediatric cancers.

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