Biological Action Zone

The biological effect zone is a quantitative indicator that is used to assess the risk of chronic poisoning. It is defined as the ratio of the average lethal dose or concentration of a poison to its threshold for chronic action. This indicator allows you to assess how toxic the poison is and how dangerous it is to human health.

The biological action zone can be used to assess the health risk of people working in hazardous industries, as well as to develop measures to protect the population from possible poisoning. For example, if a poison's biological action zone is 10, it means that to die a person would need to take a dose of the poison that is 10 times their chronic threshold. Thus, measures to protect against this poison must be more stringent than for those with a zone of biological action equal to, for example, 1.

To calculate the zone of biological action, special formulas are used that take into account various factors, such as the type of poison, its physicochemical properties, method of penetration into the body, duration of exposure, etc.

It is important to note that the biological zone of action is only one of many factors that influence the risk of poisoning. It does not take into account other factors, such as the concentration of poison in the air, duration of exposure, individual characteristics of the body, etc., and therefore cannot fully reflect the real danger of poisoning. However, it is an important tool for assessing and controlling risks when working with hazardous substances and can be used to develop effective protective measures.



The Biological Action Zone is a quantitative indicator that characterizes the danger of chronic poisoning. It is defined as the ratio of the average lethal dose (concentration) of a poison to its threshold for chronic action.

This indicator allows you to assess the degree of danger of poisons and determine what safety measures should be taken when working with them. The biological action zone can be used to assess the hazard level of various chemicals, such as pesticides, drugs, industrial emissions, etc.

When assessing the area of ​​biological effect, many factors are taken into account, such as dose, time of exposure, age and health status of the person. For example, when assessing the coverage of pesticides, their properties are taken into account, such as their ability to penetrate plant or animal tissues, as well as their ability to accumulate in the body.

The biological action zone allows you to determine what level of exposure to the poison on the body is dangerous and requires taking safety measures. It can also be used to evaluate the effectiveness of safety measures such as the use of protective suits or respirators.
In general, the biological impact zone is an important tool for assessing the hazards of chemicals and determining the necessary safety measures when working with them.