Chromium

Cohen, Mitchell D.

doi:10.1002/9780470442890.ch15

Cited by 3 publications

(2 citation statements)

References 89 publications

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“…But Cohen and Costa (2000) have mentioned about derived trivalent form of chromium to be ultimately responsible for the carcinogenic effect, which describes that hexavalent compounds …”

Section: Toxicity Of Chromiummentioning

confidence: 99%

Chromium(VI) Reducing Native Microorganisms for Remediation of Chromium Eco-toxicity in Environment of Bangladesh

Rafiqullah

Hossain

Ilias

et al. 1970

Bangladesh J. Sci. Ind. Res.

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Feeds and fertilizer production from tanned skin-cut wastes is the most direct phenomenon of chromium eco-toxicity leading to food chain contamination in Bangladesh. Tanning industries of Hazaribagh at Dhaka process some 220 t of hide per day with release of 600-1000 Kg tanned skin-cut waste (SCW) per ton processed hide. The SCW is protein-rich and unscientifically used to produce poultry and fish feeds, and organic fertilizer. A huge migration of chromium can happen into poultry products, fish and vegetables, and further bio-magnify into food chain. The target population is also huge. It is reported that feed ingredients produced from SCW contained chromium at levels as high as 2.49%. As Cr(VI) is the most toxic species of chromium, reduction of Cr(VI) to Cr(III) prior to be used as feed ingredients and fertilizers can ensure safer input of chromium in toxicological point of view. Samples have been collected to isolate microorganisms from effluent sites of Hazaribagh tanning area using Lauria-Bertani medium with added Cr (

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“…But Cohen and Costa (2000) have mentioned about derived trivalent form of chromium to be ultimately responsible for the carcinogenic effect, which describes that hexavalent compounds …”

Section: Toxicity Of Chromiummentioning

confidence: 99%

Chromium(VI) Reducing Native Microorganisms for Remediation of Chromium Eco-toxicity in Environment of Bangladesh

Rafiqullah

Hossain

Ilias

et al. 1970

Bangladesh J. Sci. Ind. Res.

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“…But Cohen and Costa (2000) mentioned about derived trivalent form of chromium to be ultimately responsible for the carcinogenic effect. The Cr (VI) ion is readily taken up into eukaryotic cells by anion-carrying proteins, after which it is reduced to Cr (III) by a number of cytoplasmic reducing agents.…”

Section: Chromiummentioning

confidence: 99%

Heavy Metal Concentration in Tannery Solid Wastes Used as Poultry Feed and The Ecotoxicological Consequences

Hossain

Monir

Ul-Haque

et al. 1970

Bangladesh J. Sci. Ind. Res.

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In Bangladesh, the tannery solid wastes are converted to protein-concentrate to be used as poultry feed, fish feed, and in production of organic fertilizers. Over the last several years it is a common phenomenon in the largest tanning area of the country, the Hazaribagh tannery area at the south-east part of Dhaka city. One of the major concerns of these activities is the heavy metals, especially chromium, used in the tanning processes. A total of 18 samples were collected to study the heavy metal status of protein-concentrate production in the tanning area at various stages from the source to the final product, and to compare this with the imported ones. The various types of solid waste processing for protein-concentrate production were covered in sampling, and along with the heavy metal status these processes were studied comprehensively. The maximum chromium content of the solid waste was found to be 3.2 %. The final products sampled at two different places contained as high as 2.49 % and 1.94 % chromium. Cadmium, lead, arsenic, and mercury contents of all samples were also determined. The detected maximum and minimum concentrations of these elements were found to be: 3.888 ppm and 0.991 ppm for cadmium, 30.114 ppm and 7.577 ppm for lead, 2.212 ppm and 0.099 ppm for arsenic, and 13.916 ppm and 0.166 ppm for mercury.

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Chromium, molybdenum and tungsten

Holder

2010

Annu. Rep. Prog. Chem., Sect. A: Inorg. Chem.

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Chromium

Cited by 3 publications

References 89 publications

Chromium(VI) Reducing Native Microorganisms for Remediation of Chromium Eco-toxicity in Environment of Bangladesh

Chromium(VI) Reducing Native Microorganisms for Remediation of Chromium Eco-toxicity in Environment of Bangladesh

Heavy Metal Concentration in Tannery Solid Wastes Used as Poultry Feed and The Ecotoxicological Consequences

Chromium, molybdenum and tungsten

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