What is the reason for the smell of kerosene in fish?

If the water of fish farming is polluted by phenol (phenol is found in the waste water discharged by some metallurgical, gas, petroleum, chemical and other enterprises). When the concentration of phenol in the water reaches a certain degree, the fish naturally have the smell of kerosene, and the fish contaminated by phenol are toxic to the human body. if they eat it inadvertently, the intake of phenol exceeds a certain limit, which can cause poisoning and even sleep.