pigment manufacturers in gujarat, India claim their products are safe, but many believe that PAHs present in these compounds may be harmful to human health. Polycyclic aromatic hydrocarbons (PAHs) cause cancer and interfere with our DNA, so they aren’t something we want inside of us. While it’s difficult to avoid PAH exposure completely (due to its widespread use), studies have shown that even a small reduction in exposure can make a big difference. Many pigment manufacturers still use traditional manufacturing methods—in which crude oil is heated and PAH-laden smoke is released into their factory—to produce low-cost pigment products.