Bituh Tomislav, Petrinec Branko, Skoko Božena, Vučić Zlatko, Marović Gordana
Arh Hig Rada Toksikol. 2015 Mar;66(1):31-40. doi: 10.1515/aiht-2015-66-2587.
Phosphogypsum (PG) is a waste product (residue) from the production of phosphoric acid characterized by technologically enhanced natural radioactivity. Croatia's largest PG deposition site is situated at the edge of Lonjsko Polje Nature Park, a sensitive ecosystem possibly endangered by PG particles. This field study investigates two aspects relevant for the general radiological impact of PG: risk assessment for the environment and risk assessment for occupationally exposed workers and local inhabitants. Activity concentrations of natural radionuclides ((238)U, (235)U, (232)Th, (226)Ra, (210)Pb, and (40)K) were measured in the PG (at the deposition site), soil, and grass samples (in the vicinity of the site). The ERICA Assessment Tool was used to estimate the radiological impact of PG particles on non-human biota of the Lonjsko Polje Nature Park. The average annual effective dose for occupationally exposed workers was 0.4 mSv which was within the worldwide range.
磷石膏（PG）是磷酸生产过程中产生的一种废品（残渣），其特点是具有技术增强型天然放射性。克罗地亚最大的磷石膏堆放场位于Lonjsko Polje自然公园边缘，这是一个敏感的生态系统，可能受到磷石膏颗粒的威胁。这项实地研究调查了与磷石膏总体放射性影响相关的两个方面：对环境的风险评估以及对职业暴露工人和当地居民的风险评估。在磷石膏（堆放场）、土壤和草样（场地附近）中测量了天然放射性核素（(238)U、(235)U、(232)Th、(226)Ra、(210)Pb和(40)K）的活度浓度。使用ERICA评估工具来估计磷石膏颗粒对Lonjsko Polje自然公园非人类生物群的放射性影响。职业暴露工人的年平均有效剂量为0.4 mSv，处于全球范围内。
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