N is for Nanoparticle

I have no idea why the Devon town of Totnes appears to be such a hotbed of conspiracy 'theories' (https://www.theguardian.com/world/2020/nov/11/totnes-covid-concerns-reflect-uk-wide-rise-in-conspiracy-theories). I know it's pedantic but they are 'hypotheses' not theories (and not even very good ones as they are not testable by any Science that I know)! I appreciate that obsessions about the 'dangers' of face masks and 5G (they have stopped mast construction in Totnes) make it more difficut to deal with real dangers like the Covid-19 pandemic. The claim that really incensed me, however, was one by a mature resident of the town stating that he wouldn't accept a vaccine against Sars-CoV-2, because it would contain 'nanoparticles'. Does he really not understand that the term simply refers to the tiny size of the elements rather than what they are made of? If he drives a car or uses a bus, nanoparticles will be belching out of the exhaust. Also, plastic nanoparticles are being emitted from the vehicle's tyres as they contact the road. As the vehicle brakes, its brake linings will shed them. If he uses a standard teabag, he will be ingesting thousands of plastic nanoparticles with his cuppa! If this level of ignorance is all it takes to imperil vaccination programmes, we are in serious trouble. Social media has a lot to answer for.