<p>Wildfires create compounds called polycyclic aromatic hydrocarbons (PAHs), which are formed in the combustion process at high temperatures. These compounds are highly toxic.</p>
<p><a href="https://pdxscholar.library.pdx.edu/mengin fac/473/">New research from Portland State’s Elliott Gall,</a> associate professor in Mechanical and Materials Engineering, examined how long harmful chemicals found in wildfire smoke can persist and the most effective ways to remove them with everyday household cleaners.</p>