Write the following list of characters into a correctly formed sentence: Studiesofdioxinintheproximityoflargefires,wherelargeamountsofPVChavebeenburned,showthatsubstancesemittedfromafirespreadoveralargeareaandwillonlyveryrarelyleadtopollutionofthesurroundingareastoanextentthatcanaffectthehealthofthelocalpopulation.
Studies of dioxin in the proximity of large fires, where large amounts of PVC have been burned, show that substances emitted from a fire spread over a large area and will only very rarely lead to pollution of the surrounding areas to an extent that can affect the health of the local population.