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Santander July 05 Radon exposure vs exposure to other sources of ionising radiation

Santander July 05 Radon exposure vs exposure to other sources of ionising radiation. Content General distribution Man-made sources Natural sources. Exposure from radiation sources General. Exposure from radiation sources Man-made. Medical exposure.

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Santander July 05 Radon exposure vs exposure to other sources of ionising radiation

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  1. Santander July 05Radon exposure vs exposure to other sources of ionising radiation Content • General distribution • Man-made sources • Natural sources A. Poffijn (FANC/UGent)

  2. Exposure from radiation sourcesGeneral A. Poffijn (FANC/UGent)

  3. Exposure from radiation sourcesMan-made A. Poffijn (FANC/UGent)

  4. Medical exposure A. Poffijn (FANC/UGent)

  5. RadiologyX-ray diagnostics • In Belgium: 1200 X-ray examinations per year per 1000 (Unscear: 920) • Average effective dose: 1,78 mSv/y (Unscear: 1,2) • CT: 0,96 mSv/y A. Poffijn (FANC/UGent)

  6. Exposure from radiation sourcesNatural A. Poffijn (FANC/UGent)

  7. Radon in the domestic environment (I)General A. Poffijn (FANC/UGent)

  8. Radon in the domestic environment (II)Reference levels A. Poffijn (FANC/UGent)

  9. Radon in the domestic environment (III)Sources (BE) A. Poffijn (FANC/UGent)

  10. Indicative map (Rn-south > Rn-north) Radon survey in 10000 homes in Southern Belgium Geo-statistical analysis General riskmap Radon in the domestic environment (IV)Risk mapping (BE) A. Poffijn (FANC/UGent)

  11. A. Poffijn (FANC/UGent)

  12. Directive 96/29/Euratom Enhanced exposure to natural radiation cannot be neglected from R.P. Work activities Radon at work NORM Aviation exposure Radon at work (I)Reference levels A. Poffijn (FANC/UGent)

  13. Radon at work (II)Categories of workplaces (BE) • All underground workplaces (mushroom galleries and visitor caves included) • Facilities for water production, treatment and distribution • Workplaces at ground level in radon risk areas as defined for homes • Any other type of work place as defined by the FANC A. Poffijn (FANC/UGent)

  14. ??? • General distribution of radiation burden: What is the (best) way of presenting national data (population weighted ,...) • Radon mapping : What is the (best) way for presenting data in view of a combination at an international level? (average, geomean, percentage,…) A. Poffijn (FANC/UGent)

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