In the past decade, research on the transcription regulation of reductive dehalogenase (rdh) gene clusters (for a recent review, see [1]) revealed a new set of CRP/FNR-type transcription regulators, called RdhK [2,3]. Several members of this family have been characterized in Desulfitobacterium hafniense. CprK1 (also known as RdhK6 [3]) is responsible for the regulation of the chlorophenol rdh o...

A. Evidence for carcinogenicity to humans (inadequate) The epidemiological studies and case reports considered with regard to producers and users of 2,4,5-trichlorophenol and 2,4,5-trichlorophenoxyacetic acid (2,4,5T) (see also summaries on chlorophenols and chlorophenoxy herbicides, pp. 154 and 156) also relate to TCDD exposure, since those products may contain TCDD as an impurity. Only studie...

The hydrogen peroxide treatment was able to remediate chlorophenols, polycyclic aromatic hydrocarbons, diesel and transformer oil contaminated soil. Chemical treatment of contaminants adsorbed in peat resulted in lower contaminants’ removal and required higher addition of chemicals than the treatment of contaminants in sand. The hydrogen peroxide treatment was found to be feasible for soil reme...

The antibacterial activity of pentachlorophenol and 35 of its known or possible metabolites against 30 different species of bacteria was tested. In comparison with pentachlorophenol, no increase of inhibitory activity was found for any of the chlorinated anisoles tested (except for pentachloroanisole against Streptomyces spp.), 2-chlorophenol, 2,6-dichlorophenol, 2,3,6- and 2,4,6-trichloropheno...