Soot

<p>Soot  is a mass of impure <a href="/facts/Carbonaceous/ukrgQexo">carbon</a> particles resulting from the incomplete <a href="/facts/Combustion/ohQoWj8z">combustion</a> of <a href="/facts/Hydrocarbon/Dcg95Ju5">hydrocarbons</a>. Soot is considered a hazardous substance with carcinogenic properties. Most broadly, the term includes all the particulate matter produced by this process, including <a href="/facts/Black_carbon/yBb6hpLy">black carbon</a> and residual <a href="/facts/Pyrolysis/h1cEegI7">pyrolysed</a> fuel particles such as <a href="/facts/Coal/83kV3qxg">coal</a>, <a href="/facts/Cenosphere/H48qeYyC">cenospheres</a>, charred wood, and <a href="/facts/Petroleum_coke/mdhE1IDD">petroleum coke</a> classified as <a href="/facts/Coke_(fuel)/vD8xjd0m">cokes</a> or <a href="/facts/Char_(chemistry)/YrRbu7xh">char</a>. It can include <a href="/facts/Polycyclic_aromatic_hydrocarbons/K52xSfNC">polycyclic aromatic hydrocarbons</a> and heavy metals like mercury.
</p><p>Soot causes various types of <a href="/facts/Cancer/PVW6n1D0">cancer</a> and lung disease.
</p>

Soot open-in-new

Soot