ESTIMATION OF AIRBORNE 106RU ACTIVITY CONCENTRATION FROM TOTAL BETA ACTIVITY OF PM10 PARTICLE FRACTIONS. Issue 4 (28th May 2020)

• Record Type: Journal Article
• Authors: Suric Mihic, Marija; Beslic, Ivan; Davila, Silvije; Marovic, Gordana; Pavelić, Luka; Sencar, Jasminka
• Is Part Of: Radiation protection dosimetry. Volume 189:Issue 4(2020)
• Page Start: 497
• Page End: 504
• Publication Date: 2020-05-28
• Subjects: Radiation dosimetry -- Periodicals; Radiation -- Safety measures -- Periodicals; 363.1799
• DOI: 10.1093/rpd/ncaa067
• Languages: English
• ISSNs: 0144-8420

Abstract

Abstract: Airborne radioruthenium, as a result of an accidental release, presents a risk for occupational and public exposure. In fall 2017, a detection of 106 Ru was reported by the European atmospheric radioactive contamination monitoring networks. We investigated the daily specific total beta activity of PM 10 particle fractions samples. The presented method enables indirect determination of airborne 106 Ru activity concentration from total beta activity, in case 106 Ru was confirmed as single excess radiological pollutant. This allows for daily measurements and time-resolved 106 Ru activity concentration data. We estimated the indicative committed effective dose due to 106 Ru inhalation for the Croatian population during the exposure period. Although the estimated dose value of ~169.7 nSv, for ~6-d duration of ruthenium air pollution, was very low, it was ~40 times higher than the value for H inh from inhalation of other radionuclides ( 90 Sr + 137 Cs + 40 K + 7 Be).