chlorine one of the root causes of dioxins and the largest producer of chemical feedstocks to make p.v.c. plastics whose life cycle is associated with more dioxin formation than any other manmade product on earth. because of these modern chemical processes by nine hundred eighty seven dioxins were present in everything from diapers to coffee filters to tampons. in two thousand and three di released an open letter to midland residents stating the dioxins were naturally occurring substance the letter however forgot to clarify a few details while forest fires and volcanoes do produce dioxins they are not the same dioxins created during the chemical processes men made out since also a number of the natural variety by a hundred to one. a letter also forgot to mention that the first health assessment of dioxin completed by the american environmental protection agency estimated that more people will get more cancer from dioxins than any other chemical on earth. it all signs up there are the dow property again this all doubt property. dioxin is a molecule it's a byproduct of chemical processing it is a kn