A recent H&S study of biaxially-oriented polypropylene, from which modern polymer banknotes are manufactured, has revealed that when attempted to be lit, produce noxious fumes that, if inhaled, can cause brain damage.
Although polymer banknotes were introduced some time after Boris Johnson gained notoriety by setting fire to a £50 note in front of a homeless man, doctors are concerned that people with money to burn may be practising with polymer notes and have urged anyone likely to be engaging in this practice to have their brain scanned, mainly to check whether they have one