explain how harmful Chemicals enter our body
Answers
Answer:
Breathing of contaminated air is the most common way that workplace chemicals enter the body. Some chemicals, when contacted, can pass through the skin into the blood stream. The eyes may also be a route of entry. ... Workplace chemicals may be swallowed accidentally if food, hands, or cigarettes are contaminated.
Explanation:
In order for a chemical to harm a person's health, it must first come into contact or enter the body, and it must have some biological effect on the body. There are four major routes by which a chemical may enter the body:
Inhalation (breathing)
Skin (or eye) contact
Swallowing (ingestion or eating)
Injection
Breathing of contaminated air is the most common way that workplace chemicals enter the body. Some chemicals, when contacted, can pass through the skin into the blood stream. The eyes may also be a route of entry. Usually, however, only very small quantities of chemicals in the workplace enter the body through the eyes. Workplace chemicals may be swallowed accidentally if food, hands, or cigarettes are contaminated. For this reason, workers should not drink, eat, or smoke in areas where they may be exposed to chemicals.
Injection is the fourth way chemicals may enter the body. While uncommon in most workplaces, it can occur when a sharp object (e.g., needle) punctures the skin and injects a chemical (or virus) directly into the bloodstream.
Regardless of the way the chemical gets into the body, once it is in the body it is distributed in the body by the blood stream. In this way, the chemical may harm organs which are far away from the original point of entry as well as where they entered the body.
Answer:
By biological magnification
Explanation:
When we eat any plant or animal the 10 percent of its energy along with harmful chemicals enters our body .
These chemicals are non biodegradable and hence can't be removed after successive levels of consumers
For example DDT