Analysis and evaluation for consumer goods containing NORM in Korea

We analyzed the consumer goods containing NORM by ICP-MS and evaluated the external dose. To evaluate the external dose, we assumed the small room model as irradiation scenario and calculated the specific effective dose rate using MCNPX code. The external doses for twenty goods are less than 1 mSv considering the specific effective dose rates and usage quantities. However, some of them have relatively high dose and the activity concentration limits are necessary as a screening tool. - Highlights: • The consumer goods containing NORM are analyzed by ICP-MS. • The external doses by consumer goods are evaluated assuming the small room model. • The activity concentration limits are derived as a screening tool.