首页> 外文期刊>Radiation Protection Dosimetry >TENORM AEROSOLS IN THE FLORIDA PHOSPHATE INDUSTRY-ASSESSMENT OF LUNG FLUID SOLUBILITY AND ANNUAL EFFECTIVE DOSE TO WORKERS
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TENORM AEROSOLS IN THE FLORIDA PHOSPHATE INDUSTRY-ASSESSMENT OF LUNG FLUID SOLUBILITY AND ANNUAL EFFECTIVE DOSE TO WORKERS

机译:氟磷酸盐行业中的TENORM气溶胶评估肺液溶解度和对工人的年度有效剂量

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Inhalation exposure to workers in the Florida phosphate industry due to TENORM aerosols has not been adequately addressed owing to lack of aerosol information. One of the more critical factors is the absorption rate of inhaled radionuclides into blood. In this study, this parameter was characterised using an in vitro dissolution test. The solubility data and other aerosol information were then used for individualised dose assessments at six different Florida phosphate facilities. The solubility data support the selections of ICRP Publication 66 Type M for uranium and lead isotopes and Type S for thorium isotopes. Total annual effective doses are 0.34 ±0.12 mSv at granulator areas, 0.30 ±0.10 mSv at storage areas and 0.23 ±0.02 mSv at shipping areas. These findings are considerably lower than originally postulated in previous studies where no site-specific information on particle size and lung fluid solubility had been available.
机译:由于缺乏气溶胶信息,未能充分解决由于TENORM气溶胶引起的佛罗里达磷酸盐行业工人的吸入暴露。更为关键的因素之一是吸入的放射性核素进入血液的吸收率。在这项研究中,使用体外溶出度测试对该参数进行了表征。然后将溶解度数据和其他气溶胶信息用于六个不同的佛罗里达磷酸盐设施的个性化剂量评估。溶解度数据支持选择ICRP出版物66中类型M(铀和铅同位素)和类型S(for)。在造粒机区域,年度总有效剂量为0.34±0.12 mSv,在存储区域为0.30±0.10 mSv,在运输区域为0.23±0.02 mSv。这些发现大大低于以前的研究中的假设,在先前的研究中,尚无关于粒度和肺液溶解度的特定位置信息。

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