LoginThe average indoor radon concentration in Finnish flats is 80 Bq/m3. Typically walls have been madeusing concrete elements. Building materials are the dominant source of indoor radon.
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This paper presents the results of the National Survey of Radon in Dwellings carried out by theRadiological Protection Institute of Ireland (RPII). Radon measurements were carried out in 11,319houses throughout the country.
The work described in this paper is based upon the results of the recently completed National Surveyof Radon in Dwellings [1] carried out by the Radiological Protection Institute of Ireland (RPII).Measurements were carried out in 11,054 dwellings,
The BfS Department of Radiation Protection performs official tasks in the field of radiation protectionfor man and his environment.
The retrospective determination of radon exposure levels in dwellings by means of the measurement ofthe Po-210 surface activity is subject to various uncertainties.
Investigations on the retrospective estimation of radon exposure in homes had already been carried outin international collaboration in the uranium mining regions of Germany since 1994.
The identification of a radon-affected area in the south of Yugoslavia was based on geologicalstructuraland geochemical prospecting data of radioactive and other mineral resources.
In recent years, 210Po implanted in glass artefacts has been used as an indicator of the mean radon gasconcentration in dwellings in the past.
Implanted long-lived radon decay products in glass surfaces have been used as a measure of pastradon exposure in homes.
In the indoor environment short-lived radon decay products deposit onto surfaces. Alpha decaying atoms obtain recoil energy enough to implant into the substrate.
The Austrian radon mitigation joint research project SARAH (supported by the Austrian Ministry ofEconomy and the Government of Upper Austria), a two-year follow up study of the Austrian NationalRadon Project (NRAP), was started in 1996.
This paper describes the new approach to control radiation exposure from natural sources toinhabitants of dwellings that is presently being considered in the Netherlands.
Experimentally, it has been observed that the radon emanation coefficient, determined for geologicaland construction materials, depends principally on the porosity and water content.
Radon-reduction in private and public buildings is a current issue. Research has opened our eyes for the enormous fluctuation of the indoor radon level over longer observation periods.
A study was made of radon-safe building in 300 Finnish low-rise residential buildings using data obtainedfrom a questionnaire study.
High radon concentrations indoors usually depend on the possibilities of radon penetration from thesurrounding soil into the buildings. Radon concentrations in dwellings up to 100 kBq/m were found insome special regions (i.e.
From the end of 1996 through March 1999, the spatial and the temporal variability of the soil 222Rnconcentration was investigated at a 20m x 20m test field with porous soil in 0.5 m and 1.0 m depth atnine positions each and at 1m x 1m plots at fou
In accordance with the Basic Standards of Radiation Protection issued by EURATOM and the recommendations of the Federal Commission of Radiation Protection (SSK), radon measurements were carried out at 80 of a total of 240 waterworks in the state o
Indoor radon concentrations in Athens and neighborhooding areas are relatively low compared withvalues in the northern part of Greece [1,2]. Nevertheless, we have localized a dwelling near Athens(N. Makri), with an elevated radon concentration.
The council directive 96/29 EURATOM laying down the Basic Safety Standards for the protection ofthe health of workers and the general public against ionising radiation might force some Europeanwater supply companies to take technical measures for