HACCP认证 什么是食品的物理性污染？
What is the food of the physical pollution?
食品的物理性污染通常指食品生产加工过程中混入食品中的杂质超过规定的含量，或食品吸附、吸收外来的放射性核素所引起的食品质量安全问题。
Food physical pollution usually refers to food production and processing in the course of mixed food of impurities in exceed the specified content, or food adsorption, absorption of foreign radionuclide caused by the problem of food quality safety.
如小麦粉生产过程中，混入磁性金属物，就属于物理性污染。
Such as wheat flour production process, mixed with magnetic metals, belongs to the physical pollution.
其另一种表现形式为放射性污染，如天然放射性物质在自然界中分布很广，它存在于矿石、土壤、天然水、大气及动植物的所有组织中，特别是鱼类贝类等水产品对某些放射性核素有很强的富集作用，使得食品中放射性核素的含量可能显著地超过周围环境中的含量。
Its another form of radioactive contamination, such as natural radioactivity in a very wide distribution in nature, it exists in rock, soil, water, atmosphere and plant and animal in all tissues, especially shellfish and other aquatic products for some radionuclides have very strong enrichment, the radionuclides in foods content may be significantly more than the surrounding content.
放射性物质的污染主要是通过水及土壤污染农作物、水产品、饲料等，经过生物圈进入食品，并且可通过食物链转移。放射性核素对食品的污染有三种途径：
Radioactive material contamination mainly through water and soil contamination of crops, aquatic products, feed, through the biosphere into food, and through the food chain transfer. Radionuclide contamination in food in three ways:
一是核试验的降沉物的污染；
A nuclear test sink matter pollution;
二是核电站和核工业废物的排放的污染；
Two nuclear power plants and nuclear industrial waste emission pollution;
三是意外事故泄漏造成局部性污染。
The three accident caused by the leakage of local pollution.