Dec. 5, 2020

As per a study recently published in the journal Nature, the harmful nature of atmospheric particulate matter is potentially due to its oxidative potential.


  • Exposure to the fine particle matter with diameters generally below 10 micrometres pose the greatest health risk. It is because they can get deep into lungs and even into bloodstream.

  • The capability of these tiny airborne particulate matter (PM) to react with oxygen to form highly reactive chemical molecules is known as reactive oxygen species (ROS) or oxidative potential (OP).

  • A reactive oxygen species build-up in cells may cause damage to DNA, RNA, proteins, and may cause cell death.