Radiological dose and associated risk due to 210Po in commercial inter-tidal bivalves of southwest (Arabian Sea) coast of India

Abstract

The activity concentration of 210Po was determined in edible tissues of commercial bivalves on the southwest coast of India. The 210Po activity ranged from 38.3 ± 6.9 Bq kg−1 to 91.2 ± 18.6 Bq kg−1. The annual committed effective dose (ACED) and lifetime carcinogenic risk (LCR) were calculated for different age groups to determine the potential health risk associated with bivalve consumption. The average ACED ranged from 81.5 to 194.1 μSv y−1, with the 10th and 95th percentiles being 68 and 261 μSv y−1, respectively. Lifelong mortality risk (LMTR) values ranged from 1.2 × 10−3 to 2.9 × 10−3, while lifetime morbidity risk (LMBR) values ranged from 1.9 × 10−6 to 4.9 × 10−6. The effective dose was found to be within the UNSCEAR limits.