It is assumed that formalin is added to the fish,
especially those come from bordering countries
by the local fish traders to keep the fish fresh fora long time. But as it is a carcinogenic chemical
and has got the ability to produce serious health
hazards like cancers of the lung, nasopharynx,
oropharynx and nasal passage to the population
regulatory bodies should take necessary steps to
minimize and stop formalin treatment of the
fish. The current study involves a small number
of samples to detect formalin in fish in local
market in Dhaka city. But it gives us a
comprehensive picture to understand the extent
and magnitude of the scenario.