CURRENT AFFAIRS

Detailed explanation-1: -Formalin is used to preserve the fish itself and is typically injected into the fish or prawn. Formalin, or formaldehyde, has both short- and long-term impacts on health.

Detailed explanation-2: -Formalin is used as a bath treatment to control parasitic infections on the external surfaces (skin, fin, gills) of fish. It is extremely effective against most protozoans as well as some larger parasites, such as monogeneans.

Detailed explanation-3: -Formalin (formaldehyde in water) is a common adulterant in fish. Traders and suppliers use it to extend the storage life of fresh or chilled fish and artificially improve the sensory attributes.