Question

due to what reason so some fish might contain harmful chemicals​

Answer 1

Answer:

Certain chemicals can be of potential health concern because of their toxicity and their ability to accumulate in fish tissue. Harmful chemicals enter the environment through natural processes, industrial and agricultural use, mining, spills, and improper disposal.

Answer 2

Answer:

Fish absorb contaminants such as PCBs, PBDEs, dioxins, and chlorinated pesticides from water, sediments, and the food they eat. In contaminated areas, bottom-dwelling fish are especially likely to have high levels of these chemicals because these substances settle to the bottom where the fish feed.