Browsing: Polycyclic Aromatic Hydrocarbons

Polycyclic Aromatic Hydrocarbons (PAHs) are a group of organic compounds composed of multiple aromatic rings made up of carbon and hydrogen atoms. They are primarily formed through the incomplete combustion of organic material, such as coal, oil, gas, wood, garbage, and tobacco. PAHs are ubiquitous in the environment and can be found in air, water, and soil. They are also present in some processed foods and in substances like crude oil and coal tar.

PAHs are of significant environmental and health concern due to their potential carcinogenic and mutagenic properties. Many PAHs are known to be hazardous air pollutants because of their ability to form during the burning of fossil fuels and their persistence in the environment, where they can attach to airborne particulates. They can affect human health when inhaled, ingested through contaminated water or food, or absorbed through the skin. Long-term exposure to PAHs has been linked to various types of cancer, cardiovascular disease, and poor fetal development in pregnant women. Environmental regulatory agencies worldwide monitor and regulate PAHs to limit human and ecological exposure.