It is mainly caused by harmful microorganisms and their toxins, parasites and their eggs and insects. Animal foods such as meat, fish, eggs and milk are easily contaminated by pathogenic bacteria and their toxins, leading to bacterial food poisoning and infectious diseases in humans and animals. Pathogens mainly come from patients, carriers, sick animals and sick birds.
2. Chemical pollution
Mainly refers to the pollution of pesticides, food additives, food packaging containers and industrial wastes, as well as the pollution caused by organic or inorganic compounds such as lead, arsenic, cyanide, organophosphorus, organochlorine, nitrite and nitrosamine.
3. Radioactive pollution
Radioactive substances in food are radioactive substances from the earth's crust, which is called natural background; There are also radioactive substances produced by nuclear weapons testing or peaceful use of radioactive energy, that is, man-made radioactive pollution.
Extended data:
The frequent occurrence of food pollution incidents has attracted great attention of relevant international organizations and institutions and governments of various countries. Some international organizations and national governments have taken measures to control food pollution and ensure food safety.
For example, the European Union issued the White Paper on Food Safety in 200 1 and 1, and plans to set up the European Food Safety Agency in recent years to establish a rapid early warning system, so that the European Commission can take appropriate measures to deal with possible food hygiene problems. The President's Food Safety Committee was established in 1998 in the United States, and the Food Safety Bureau was also established in France, which strengthened the national management of food safety.
Baidu encyclopedia-food pollution