California has banned the use of tetrachloroethylene (AKA Perc) as dry cleaning fluid effective 2023. Perc was introduced in the circa early 1950s as a non-flammable dry cleaning fluid, replacing the flammable Stoddard solvent and making the dry cleaning process safer. LA was built with dry cleaners that use perc, and now the perc has been removed and replaced with a flammable alternative (DF-2000, dibutylacetal, etc). Could this be why the town has now gone up in flames? Perhaps a grand coincidence? What do you think?
