What are polycyclic aromatic hydrocarbons?
Polycyclic aromatic hydrocarbons, also known as PAH, are chemical compounds that occur in different types of fuel and form one component of pollution. There are several forms of PAH that differ in their specific chemical structure, but all contain a number of six -hour rings called aromatic rings. Aromatic circles are harmful because it is difficult to neutralize and destroy, leading to the accumulation of toxic hills in the environment and tissues of the body. Their toxicity depends on the specific PAH present and toxicity ranges from only slightly toxic to extremely toxic. Currently, there are seven PAH, which are known to be highly carcinogenic, and specific pahs were associated with a number of cancer, including breast and lung cancer. Polycyclic aromatic hydrocarbons are present in cigarette smoke and are considered one of the main carcinogens in cigarettes.
PAH is carcinogenic because they cause mutations in DNA, a key step in cancer development. Chemical stThe PAH sertura is similar to the chemical structure of parts of the DNA molecules. As a result, the presence of the PAH in the cells interrupts the normal DNA replication process. By disrupting DNA replication, PAH can increase the number of errors in the DNA molecule created. These mutations can lead to cancer.
In addition to their toxic effects on the body, toxic polycyclic aromatic hydrocarbons are also for the environment. PAH dissolves in oils naturally present in the soil and contributes to soil and air pollution in the atmosphere. They are a natural part of fuels such as oil, tar and coal, so when these materials are burned in industrial factories, PAH is released into the air. Some of the hills remain in the atmosphere suspended in the air -entered particles, while the others settle in the soil. After storage, the chemical is difficult to neutralize and can not be washed with water.
Recent progress in science has discovered methods that show promising in their capableSti reduce the level of polycyclic aromatic hydrocarbons in the soil. One study used the soil enriched with a few hills to see if treatment with pure soil and white mushroom components can reduce the levels of PAH. The study found that dual processing of pure soil and mushrooms almost completely destroyed the levels of the hill in the soil. Therefore, this method can be used to clean the soil and can help reverse and prevent environmental damage due to combustion of coal, tar and oil.