Question

Polycyclic aromatic hydrocarbons are produced from the combustion of which materials?

Options

• Natural mineral deposits only

• Plant-based medicinal compounds

• Coal, petroleum, and other organic matter

• Radioactive elements in the atmosphere

Answer 1

Polycyclic aromatic hydrocarbons are produced from the combustion of coal, petroleum, and other organic matter. These are chemical carcinogens generated when these materials undergo incomplete combustion, and exposure to them increases cancer risk.