Soot is a black solid produced by incomplete combustion of carbon-based solids and gases. These solids are primarily composed of carbon, with variable amounts of other elements.

The buildup of soot in the environment can cause various harmful consequences for humans, vegetation, animals, and even entire ecosystems. In addition, soot contains chemicals such as PAHs, known as cancer-causing agents.

The chemicals last for years or even decades after being released into the environment