Reduction in levels of volatile N-nitrosamines in rubber nipples for babies' bottles

Levels of volatile N-nitrosamines were determined in 189 samples of rubber nipples for babies' bottles. Domestic (US-manufactured) and imported rubber nipples for consumer and hospital use were analysed to determine compliance with the US Food and Drug Administration's action level of 60 ppb (b = 10(9] for total volatile N-nitrosamines. Only one sample was found to be in violation of the action level; it contained a total of 137 ppb N-nitrosamines.