Chemical pollution occurs when potentially toxic substances are released/ leaked into the land, water, and air. They have both minor and severe impacts. Chemicals are used on food crops as well as meat produced from domestic animals. In fact, the highest amount of chemical pollution is found in mammals. Every type of pollution is in some way derivated from chemical pollution.
Dioxins and PCB pollution are commonly found in soil, water, plants, and animal foods we eat. They affect food through a variety of ways. The grazing animals and vegetables that we eat are exposed to dioxin and pcb through soil contamination, whereas, leafy vegetables, pasture, and roughage are contaminated through air pollution. As mentioned in previous pages, fish are the main victims. In this case, it is due to their longer lifespan that allows them to contain Dioxin and PCB pollution. Milk, meat, fish, eggs, and other dairy products are the main sources of Dioxin and PCB pollutions.
Hexachlorobenzene is a type of chemical pollution(pesticide) that is used to protect the seeds of crops. It is also used to make ammunitions and tends to stay in the environment for long periods of time. As a result, hexachlorobenzene builds up in the food chain and begins to affect the wheat, vegetables, meat, fish and cattle. In addition, hexachlorobenzene is found in milk, poultry, eggs and other dairy products. Through recent studies, babies have been found to contain this chemical through breast feeding from the mother's breast tissue fat. The fat and oils contained in foods increases the amount of hexachlorobenzene an individual will obtain. As previously mentioned, every type of pollution falls under chemical pollution. Essentially, toxic hexachlorobenzene is also present in the water people consume. The consumption of hexachlorobenzene can lead to a variety of health problems such as: cancer, liver disease, skin sores, red urine, skin discolorations, problems of the nervous system as well as the stomach.
Oil pollution occurs primarily when offshore oil tanks leak or run over. This type of pollution has the nation's attention because of the recent oil spill crisis in the Gulf. It greatly detriments the food chain by killing off much needed food that both animals and humans need to survive. The effects of oil pollution is not only harmful but worse, permanent. The common loon, pink salmon, sockeye salmon, sea otter, black oystercatcher, mussel and rockfish are all foods people consume that are affected by oil pollution. Nevertheless, birds play a central role in the food chain and are the animals that suffer the most from oil pollution. The oil sticks to their bodies and leave them flightless and suffering. Large oil spills prevents sunlight from reaching smaller organisms within the ocean. As a result, the whole food chain is corrupted due to organisms depending upon each other.
Environment and Food >