engleski

TOTAL OCCUPATIONAL EXPOSURE MEASURED AT THE TENORM PHOSPHOGYPSUM SITE - DOSIMETRIC CONCEPT USING ACTIVE ELECTRONIC DOSIMETERS

The modern ecological approach in protecting human life and the environment from various natural and man made radiological stressors which may cause harm, involves the creation of a validated integral dosimetric concept. This concept is the one that does not extract humans as majestic species from their environment and habitat. The dosimetric concept of ionizing radiation protection involves the research of all possible pathways through which natural or man-made radioactive materials can flow through the environment, contaminate habitats and harm biota. The dosimetric methods are followed with validated methods of risk assessment. We are presenting the dosimetric research performed with newly developed and utilized active electronic dosemeter on a TENORM industrial phosphogypsum (PG) site. According to dose rate measured by several different instruments, average equivalent dose rate all over the PG site was found not more than three times higher than natural local background. Since the significant pathway of TENORM radioactivity dispersion includes also the air dispersion, inhalation of such PG dust together with professional worker staying at the PG dam during the working time of 2000 working hours per year leads to workers exposure burden of more than an additional 1 mSv/y thus defining this working area as an occupational.

Radiation Protection; Risk Assessment; Electronic Dosimetry; Personal Dosimetry; Occupational Exposure; Effective dose; Hp(10); Hazard Index; TENORM

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