Dioxins and Dioxin-like Persistent Organic Pollutants in Textiles and Chemicals in the Textile Sector

摘要

Over 70.0000 tons of dye-stuff is produced annually with more than 100,000 commercially available dyes. Synthesis of colorants involves a relatively large group of chemicals with complex syntheses. During the synthesis of colorants, highly toxic, carcinogenic and persistent organic compounds, such as dioxins, can be formed. Dioxins are related to halogens, chlorine and bromine homologues being the most toxic and persistent. About 40 % of globally used colorantscontain organically bound chlorine. The use of colorants in the textile industry, with their wide applications and complex chemistry could be a significant source of dioxins and/or precursor compounds for the formation of dioxins and other persistent organic pollutants (POPs). The aim of the paper is to give an overview of the dioxin-like compounds in chemicals, with an emphasis on colorants, textiles and their fate in the environment.