what is contaminant..
Answers
Answer:
The term "environmental contaminant" is another name for pollution. A contaminant is a substance that is where it shouldn't be and is at high enough levels to have a negative effect on our health or on the health of animals or plants. A contaminant is any potentially undesirable substance (physical, chemical or biological). It usually refers to the introduction of harmful human-made substances. However, some substances that may have harmful effects at high levels, like cadmium, occur naturally in ecosystems and may also be introduced through human activities. Tissue samples taken from Porcupine caribou, for example, show traces of cadmium which is naturally present in the lichens the caribou eat.
Contaminants can be man-made substances produced by factories, such as DDT or toxaphene. It is the substance's long life and its ability to spread over a wide area that makes an industrial contaminant such a problem. Chemicals used in other parts of the world enter into the upper atmosphere and end up falling to the ground here, contaminating our homelands. Contaminants may be found in soil, plants, air, water, sea animals, land animals, and birds.
Define Contaminate
A contaminant is something that contaminates a substance such as water or food.
Use in Sentences:
- Contaminants found in poultry will also be found in their eggs.
- We are exposed to an overwhelming number of chemical contaminants every day in our air, water and food.