Polychloro phenoxy phenols (polychlorinated phenoxy phenols, PCPPs) are a group of organicpolyhalogenated compounds. Among them include triclosan and predioxin which can degrade to produce certains types of dioxins and furans. Notably, however, the particular dioxin formed by degradation of triclosan, 2,8-DCDD, was found to be non-toxic in fish embryos.
^Rule KL, Ebbett VR, Vikesland PJ (2005). "Formation of chloroform and chlorinated organics by free-chlorine-mediated oxidation of triclosan". Environ. Sci. Technol. 39 (9): 3176–85. Bibcode:2005EnST...39.3176R. doi:10.1021/es048943+. PMID15926568.
^Latch, Douglas E.; Packer, Jennifer L.; Arnold, William A.; McNeill, Kristopher (2003). "Photochemical conversion of triclosan to 2,8-dichlorodibenzo-p-dioxin in aqueous solution". Journal of Photochemistry and Photobiology A: Chemistry. 158: 63–66. doi:10.1016/S1010-6030(03)00103-5.
^Wisk, Joseph D.; Cooper, Keith R. (1990). "Comparison of the toxicity of several polychlorinated dibenzo-p-dioxins and 2,3,7,8-tetrachlorodibenzofuran in embryos of the Japanese medaka (Oryzias latipes)". Chemosphere. 20 (3–4): 361. Bibcode:1990Chmsp..20..361W. doi:10.1016/0045-6535(90)90067-4.