REMEDIATION OF COAL ASH AND SLAG DISPOSAL SITE: COMPARISON OF RADIOLOGICAL RISK ASSESSMENTS

Residuals from coal combustion are known as a potential source of radiation exposure, especially in cases where the used is characterized by increased radioactivity, resulting ash and slag with potentially high activity concentration radionuclides. This paper presents results radiological risk assessments based on ERICA Tool approach, to estimate dose rates terrestrial biota proximity fired thermal power plant Croatia. The study consists three using environmental data (Bqkg-1) samples collected prior remediation disposal site after implementation was completed. total rate derived ranged 3.28 μGyh-1 147.68 μGyh-1. Assessment studied area 0.23 18.06 showed that only for lichens bryophytes slightly exceeded conservative screening value 10 μGyh-1, which implies risks relation exposure can be considered negligible. confirm applicability assessment impact effective at site.