Oxides of nitrogen are harmful components of air pollution, contributing to the formation of ground-level ozone and fine particulate pollution that cause respiratory issues in humans.

A common mineral, research shows, can neutralise the pollutants when added to projects in the built environment. Nitrogen oxide (NO) and nitrogen dioxide (NO2), together referred to as oxides of nitrogen or NOx, are components of air pollution produced by combustion of fossil fuels in vehicles, power plants, and off-road…