Controversy about plants that cause lung cancer

After years of doubt and controversy, scientists at the University of North Carolina claim that plants can also pollute the air, affecting human health, due to the effects of nitrogen oxide.

Scientists know that isoprene- producing plants, an abundant form of air in the air, can protect leaves from oxygen damage and erratic temperature changes.

Since 2004 there has been evidence that isoprene is involved in the production of microparticles that can bind to the lungs, leading to the possibility of lung cancer, asthma and tissue damage. The impact of isoprene and the inherent long-term benefits of greenery have been the subject of debate since then.

This time, PGS Jason Surratt and his colleagues suggested the mechanism by which isoprene contributes to the production of micro-particles that are harmful to health. New research suggests that in the sun, isoprene reacts with nitrogen oxide - pollutants derived from emissions - to form the tiny particles mentioned above.

Mr. Surratt proposed reducing human-induced contaminants around the world. Isoprene protects plants but because of the presence of nitrogene oxide, it has a negative effect on health and the environment. We cannot cut down trees but can work to reduce emissions to limit the production of harmful micro-particles.

New research is published in Proceeding of the National Academy of Sciences.