Hexachlorobenzene
Mostrando 1-12 de 21 artigos, teses e dissertações.
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1. Kinetics and Product Analysis of the Electrochemical Dehalogenation of Hexachlorobenzene
A method for establishing the kinetics and products of the electrochemical degradation of hexachlorobenzene (HCB) is described. One plausible way of reducing HCB´s toxicity is through cathodic dehalogenation. The characterization of products formed during the electrochemical reduction and the reaction kinetics are both reported. Pentachlorobenzene (PCB), te
J. Braz. Chem. Soc.. Publicado em: 2015-04
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2. DETERMINAÇÃO DE RESÍDUOS DE AGROTÓXICOS ORGANOCLORADOS EM LARANJA POR DISPERSÃO DE MATRIZ EM FASE SÓLIDA (MSPD) DISSERTAÇÃO DE MESTRADO ECOLOGIA E PRODUÇÃO SUSTENTÁVEL
This work shows the results achieved for the evaluation of organochlorine pesticides residue presence in oranges consumed in Goiânia. The method employed was based on the Matrix Solid Phase Dispersion extraction, MSPD, and analyzed by high resolution gas chromatography, GC. The studied pesticides were hexachlorobenzene, atrazine, heptachlor and its epoxide,
Publicado em: 2007
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3. Pesticidas organoclorados em plantas medicinais e fitoterapicos
The pesticide contamination of plants as medicinal or food uses is very common, and could be due to the own cultivation in large scale, migration of neighboring cultures or the environmental contamination. Although banished of many countries, besides Brazil, due to its high toxicity and environmental persistence, the organochlorine pesticides (OCP) continue
Publicado em: 2004
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4. Changes in soil properties to hexachlorobenzene removal from contaminated area / "Alteração de características do solo para remoção de hexaclorobenzeno de área contaminada".
A contaminação ambiental provocada pelo despejo de resíduos industriais e pela aplicação de agrotóxicos pode resultar no desequilíbrio dos ecossistemas, além de causar danos diretos à saúde humana. No Brasil, existem várias áreas contaminadas com resíduos industriais, tais como o hexaclorobenzeno (HCB), um composto organoclorado usado no passado
Publicado em: 2003
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5. The decrease in uroporphyrinogen decarboxylase activity induced by ethanol predisposes rats to the development of porphyria and accelerates xenobiotic-triggered porphyria, regardless of hepatic damage
We evaluated the porphyrinogenic ability of ethanol (20% in drinking water) per se, its effect on the development of sporadic porphyria cutanea tarda induced by hexachlorobenzene in female Wistar rats (170-190 g, N = 8/group), and the relationship with hepatic damage. Twenty-five percent of the animals receiving ethanol increased up to 14-, 25-, and 4.5-fold
Brazilian Journal of Medical and Biological Research. Publicado em: 2002-11
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6. Exposição ocupacional e organoclorados em industria quimica de Cubatão - Estado de São Paulo : avaliação do efeito clastogenico pelo teste de Micronucleos
A study of occupational exposure to organochiorinated substances was initially carried out at chemical unity of Cubatão (Unidade Química de Cubatão-UQC). This industry operated from 1967 to 1993, producing carbon tetrachloride as well as perchlroethylene It is known that the residual waste of these agents is the hexachlorobenzene. Until 1976, this industr
Publicado em: 1995
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7. Parametro da resposta imunologica em individuos com exposição ocupacional a compostos organoclorados
This work is part of a larger project intitled "Integrated Project for the Study of the Hematotoxicity of Benzene and Pesticides", which is a multidisciplinary study for the systemic evaluation of workers and ex-workers of the Empresa Química de Cubatão, São Paulo, Brazil. We have studied in a group of workers exposed to chlorinated compounds the inespeci
Publicado em: 1995
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8. Reductive dechlorination of hexachlorobenzene to tri- and dichlorobenzenes in anaerobic sewage sludge.
Hexachlorobenzene was dechlorinated to tri- and dichlorobenzenes in anaerobic sewage sludge. The complete biotransformation of 190 microM hexachlorobenzene (approximately 50 ppm) occurred within 3 weeks. The calculated rate of hexachlorobenzene dechlorination was 13.6 mumol liter-1 day-1. Hexachlorobenzene was dechlorinated via two routes, both involving the
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9. Reductive dechlorination of a polychlorinated biphenyl congener and hexachlorobenzene by vitamin B12.
The polychlorinated biphenyl congener 2,3,4,5,6-pentachlorobiphenyl and hexachlorobenzene were reductively dechlorinated in an aqueous biomimetic model system containing vitamin B12. The products of 2,3,4,5,6-pentachlorobiphenyl dechlorination were 2,3,5,6- and 2,3,4,6-tetrachlorobiphenyl. Hexachlorobenzene dechlorinated to pentachlorobenzene and a mixture o
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10. Hepatocellular carcinoma and exposure to hexachlorobenzene: a case report.
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11. Serum organochlorines and urinary porphyrin pattern in a population highly exposed to hexachlorobenzene
BioMed Central.
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12. Biosorption of dichlorodiphenyltrichloroethane and hexachlorobenzene in groundwater and its implications for facilitated transport.
The potential for enhanced mobility of hydrophobic pollutants by cotransport with bacteria in saturated soils was evaluated from measurements of biosorption of 14C-labeled hexachlorobenzene and dichlorodiphenyltrichloroethane (DDT) to five strains of soil and sewage bacteria. The sorption process could be described by a linear partition equation and appeared