VNAs are also detected in several samples though at considerably
lower levels. The mean levels of the individual VNAs in samples
from the Danish market are ≤0.8 μg kg−1. Of the targeted NA only
N-nitrosodibutylamine is not found. NDBzA and NDPA were detected
in a few samples and NHPRO were detected in about 40% of
the samples. However, the contents of these three NAs could not
be quantified with enough certainty using the developed method
and contents of these have therefore not been included in the exposure
calculation.