The Adverse Effects of Exposure to Benzene

Introduction Benzene (aka benzene) is a sweet, colorless and flammable liquid. It evaporates rapidly into the air and partially dissolves in water. Most people begin to smell benzene in the air at about 60 ppm of air and identify it as 100 ppm benzene. It was first discovered in the 1980s and extracted from coal tar and then extracted from petroleum for a drastic increase in demand. Since then, various industries have used benzene to produce other chemicals such as styrene, cumene, cyclohexane.

Benzene is known as a human carcinogen. The main indoor sources of this chemical are tobacco smoke in the environment, supply of stored fuel and paint, and emissions from automobiles from the attached garage. Behaviors to reduce exposure to benzene include eliminating smoking at home, providing maximum ventilation during the painting process, and paint supply and special fuel disposal that are not immediately available. Perchlorethylene is the most widely used chemical for dry cleaning. Laboratory studies have been shown to cause cancer in animals. According to recent research, people with low concentrations of this chemical are sucked into homes that store dry cleaning products or in wearing dry cleaning clothes. Dry cleaners recapture perchlorethylene during the dry cleaning process, so you can save money while pressing and finishing and reuse it to remove more chemicals.

Chemical substances are generally divided into two groups: (i) Chemicals that cause toxic effects Generally, it is believed that there are doses, exposures or concentrations below which exposure or concentration does not adversely affect. / Behavioral chemicals), immunology, non-genotoxic carcinogenesis, reproductive or developmental effects); (ii) chemicals that cause other kinds of influences and are likely to be harmful at all levels of exposure - It is suitable for mutation induction and carcinogenesis. Many chemical substances have been evaluated and guideline values ​​for exposure levels are described in the following literature and it is considered that these chemical substances are not considered to have an adverse effect (that is, threshold substances) and are considered to be at risk Risk of unit exposure. Health conditions (ie, non-threshold substance) at all levels of exposure

Effect of test animals on minimal exposure to test substance. The highest exposure that does not cause such adverse effects is called an unaffected quantity (NOEL) or a harmless quantity (NOAEL) - and p. 12, the FDA says: "Because ADI calculations are to prevent the most sensitive side effects, we can also prevent other adverse reactions that occur under higher component exposure," the president's paper. Presidential Decree No. 13045 on April 21, 1987 protects children from environmental health risks and safety risks. Federal Reserve System. Registration 62 (78) (April 13, 1997), 19885; and EPA. Guidelines for considering children's health when developing EPA measures: Implement Presidential Decree 13045 and EPA policy to assess children's health risk. EPA / 600 / R - 05/093 F, October 2006. http://www 2. e epsilon