Abstract
The levels of volatile N-nitrosamines were determined in 38 alcoholic drinks and 215 food samples prepared for human consumption using standard culinary practices. The analyses used gas chromatography thermal energy analysis. Detectable levels were found in 80 (31.5%) of the individual samples. The average daily intake of voltaile N-nitrosamines in West Germany in 1989–1990 was found to be: 0.28 μg N-nitrosodimethylamine (NDMA)/day, 0.011 μg N-nitrosopyrrolidine (NPYR)/day and 0.015 μg N-nitrosopiperidine (NPIP)/day for men, and 0.17 μg NDMA/day, 0.011 μg NPYR/day and 0.015 μg/NPIP/day for women. For men, 31% of the daily NDMA exposure results from the consumption of beer.
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