Seafood, intertidal biota, beach sediment, and seawater from Kalpakkam coast, Bay of Bengal were analyzed for ²¹⁰Po to evaluate the internal exposure and other radiological safety aspects. Kalpakkam houses various nuclear power generation facilities on its coast. The activity concentration of ²¹⁰Po was more pronounced in the intertidal organisms. Pelagic planktivorous fishes have the highest activity of the non-technogenic radionuclide, followed by the detrital feeders, benthic planktivores, benthic carnivores, and pelagic carnivore fishes. The affinity of ²¹⁰Po to organic detrital matter and planktonic organisms has led to a higher accumulation of radionuclide in planktivorous fishes. Activity concentration of ²¹⁰Po in seafood ranged between 1.13 ± 0.3 and 96.71 ± 1.6 Bq kg⁻¹ (Becquerel/kilogram). In seaweeds and gastropods, it ranged from 2.09 ± 0.2 to 8.21 ± 0.6 and from 9.31 ± 0.7 to 21.58 ± 1.2 Bq kg⁻¹, respectively. The committed effective dose (CED) of ²¹⁰Po in seafood varied from 31.18 to 456.68 μSv yr⁻¹ (microSievert/year). Radiological hazard parameters, such as activity intake, CED in consumption, of the seafood from this coast are within the acceptable levels prescribed by the International Commission on Radiological Protection and US Environmental Protection Agency.

分析了来自孟加拉湾 Kalpakkam 海岸的海鲜、潮间带生物群、海滩沉积物和海水中的²¹⁰ Po，以评估内照射和其他放射安全方面。Kalpakkam 在其海岸设有各种核能发电设施。²¹⁰ Po的活性浓度在潮间带生物中更为明显。浮游浮游鱼类的非技术性放射性核素的活性最高，其次是碎屑饲养者、底栖浮游动物、底栖食肉动物和中上层食肉动物。²¹⁰ Po 对有机碎屑和浮游生物的亲和力导致浮游鱼类中放射性核素的积累更高。活性浓度²¹⁰海鲜中的 Po 介于 1.13 ± 0.3 和 96.71 ± 1.6 Bq kg ^-1（贝克勒尔/公斤）之间。在海藻和腹足动物中，其范围分别为 2.09 ± 0.2 至 8.21 ± 0.6 和 9.31 ± 0.7 至 21.58 ± 1.2 Bq kg ^-1。海产品中²¹⁰ Po 的待积有效剂量 (CED)从 31.18 到 456.68 μSv yr ^-1（微西弗/年）不等。来自该海岸的海产品的放射性危害参数，例如活动摄入量、消费 CED，均在国际放射防护委员会和美国环境保护署规定的可接受水平内。