What do you mean by contamination?
noun. the act of contaminating, or of making something impure or unsuitable by contact with something unclean, bad, etc. the act of contaminating, or of rendering something harmful or unusable by the addition of radioactive material: the contamination of food following a nuclear attack.
What are called contaminants?
Contaminants are defined as “substances (i.e. chemical elements and compounds) or groups of substances that are toxic, persistent and liable to bioaccumulate, and other substances or groups of substances which give rise to an equivalent level of concern”.
What are contaminants with example?
Chemical contaminants are elements or compounds. Examples of chemical contaminants include nitrogen, bleach, salts, pesticides, metals, toxins produced by bacteria, and human or animal drugs. Biological contaminants are organisms in water.
What is contaminated environment?
Environmental contaminants are chemicals that accidentally or deliberately enter the environment, often, but not always, as a result of human activities. If released to the environment, these contaminants may enter the food chain.
What are the 5 types of contamination?
The most common types of contaminant include:
- Physical contamination. Examples: fiber material, particles, chips from your pill press tooling.
- Chemical contamination. Examples: vapor, gasses, moisture, molecules.
- Biological contamination. Examples: fungus, bacteria, virus.
What is a chemical contaminant?
Contaminants are chemical substances that have not been intentionally added to food or feed. These substances may be present in food as a result of the various stages of its production, processing, or transport. They also might result from environmental contamination.
What causes contamination?
The reasons for contamination can include: poor waste management. poor construction, industrial or agricultural practices. illegal dumping or unsafe storage of harmful products.
What are examples of contaminants?
Examples of chemical contaminants include nitrogen, bleach, salts, pesticides, metals, toxins produced by bacteria, and human or animal drugs. Biological contaminants are organisms in water.
What is an environmental contaminant?
What are the four main types of contamination?
What are the Four Types of Food Contamination? The Four Types of Contamination. There are four main types of contamination: chemical, microbial, physical, and allergenic. Chemical Contamination of Food. Chemical contamination happens when a food becomes contaminated by some kind of chemical substance. Microbial Contamination of Food. Physical Contamination of Food. Allergenic Contamination of Food.
What are the types of contamination?
Beside particulate matter such as ions and molecules, the most common types of contamination are: People – Hair, fibre particles from bodies and clothes, also poor hygiene leading to deposition of microorganisms. Environment – Dust particles, contaminated air, work surfaces, gases, movement ceilings, walls and floors.
What are three types of food contamination?
There are basically three forms of food contamination. These are things like cleaning solutions, food additives, pesticides, galvanized metal residues etc. These are bacterias, viruses, parasites and molds. Hair, glass, metal shavings, dirt etc.