Monitoring the photochemical degradation of triclosan in wastewater by UV light and sunlight using solid-phase microextraction

Occurrence and Fate of Selected Endocrine-Disrupting Chemicals in Water and Sediment from an Urban Lake

“…3 Linear adsorption isotherms of the EDCs in the lake sediment life of 235 h and that the presence of DOM significantly accelerated the degradation process (half-life 17.4-32.2 h). Very rapid photodegradation of TCS was also observed in wastewater irradiated with a Xenon lamp with a half-life of only 3.9 min, and 2,8-dichlorodibenzo-p-dioxin, which is more toxic and persistent, was identified as a major photodegradation product (Sanchez-Prado et al 2006). These results agree with our observation.…”

Oxidation of triclosan by ferrate: Reaction kinetics, products identification and toxicity evaluation

“…More importantly, triclosan can undergo direct phototransformation to produce 2,8-dichlorodibenzo-p-dioxin, which is known to be carcinogenic [10][11][12][13][14]. In addition, methyl triclosan formed by biological methylation process can be more lipophilic and bioaccumulative than the parent compound itself [9].…”

Applying the precautionary principle to consumer household cleaning product development

“…For example, one study showed that TCS in formulation has the ability to react with chlorine in tap water to produce 2,4-dichlorophenol, 2,4,6-trichlorophenol, and chloroform although the risk introduced by these exposures was not determined (Fiss et al, 2007). In other studies, the photodegredation of TCS also resulted in the formation of 2,4-dichlorophenol as well as other toxic compounds such as, 2,8 dichlorodibenzodioxin, and dichlorohydroxydiphenyl (Latch et al, 2003;Sanchez-Prado et al, 2006). As several reports show that TCS is commonly found in sources that are directly exposed to sunlight, such as surface water and streams, it can be suggested the presence of TCS increases the risk of exposure to its toxic degradation products (Hua et al, 2005;Kolpin et al, 2002).…”