N-Nitrosodimethylamine (NDMA) in Food and Beverages: A Comparison in Context to Drinking Water
2014
Chowdhury, Shakhawat
Human exposure to N -nitrosodimethylamine (NDMA) from foods and beverages was modeled and upper-bound cancer risks were predicted for the United States and Canada. Approximately 0.5 (0–10.8) cancer incidents per million population from lifetime exposure to NDMA in drinking water were estimated. Lifetime exposure to NDMA from the major exogenous sources may result in 49.6 (range: 17.7–171.7) cancer incidents per million population, while meat products contribute the most (15.9/million) followed by milk products (10.9/million). Drinking water may contribute approximately 1% to the exogenous cancer risk and holds the 10th position among 10 exogenous sources. The sum of the cancer risks from the major exogenous sources (e.g. , 49.6/million) is higher than the permissible limits (1–10/million) of several regulatory agencies. Thus, NDMA in exogenous sources can pose a significant source for cancer risk. Cancer risk from the exogenous sources was estimated to be much lower than that of the NDMA in the endogenous source (<1%).
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