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Consumption of seafoods has increased during the last two decades in many countries. In Morocco, annual fresh marine fish consumption has increased significantly due to the existence of modern fish markets in major cities. To explore the exposure pathway of 238U, 232Th, 222Rn, and 220Rn radionuclides to the human body of consumers, these radionuclides were measured in various fresh and canned marine fish samples widely consumed by the Moroccan population by using two types of solid state nuclear track detectors (SSNTDs). A census was taken of the fresh and canned marine fish consumed by adult members of the public and building material workers. Committed equivalent doses due to annual intakes of 238U, 232Th, 222Rn, and 220Rn were determined in the organs of adult members of the urban Moroccan population from the ingestion of fresh and canned marine fish samples. The influence of pollution caused by building material dusts on committed effective doses to workers due to the 238U, 232Th, 222Rn, and 220Rn radionuclides from the ingestion of canned fish samples was investigated.