In which natural event is nitrogen monoxide primarily produced?

Nitrogen monoxide, also known as nitric oxide (NO), is primarily produced in natural phenomena such as thunderstorms. During thunderstorms, the intense heat and electrical activity create conditions that enable nitrogen and oxygen from the atmosphere to react, forming nitrogen oxides, including nitrogen monoxide. The high temperatures generated by lightning strikes facilitate this reaction, leading to a significant production of nitrogen oxides released into the atmosphere.

This process is important because nitrogen oxides play a role in atmospheric chemistry and can contribute to the formation of ground-level ozone and other pollutants. Understanding the natural sources of nitrogen oxides helps better assess their impact on air quality and the environment.