Toxic and mutagenic effects of chromium(VI). A review

Cieślak‐Golonka, Maria

doi:10.1016/0277-5387(96)00141-6

Cited by 327 publications

(185 citation statements)

References 139 publications

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“…In nature, chromium exists in numerous oxidation states between -2 to +6, but only chromium (III) and chromium (VI) are stable. Chromium (VI) is highly mobile and toxic and also form most widely presents in industrial wastewaters (Cielslak-Golonka, 1995). Through refuse wastewater, chromium enters especially into freshwater or soil and thereby into plant, animals and human beings.…”

Section: Introductionmentioning

confidence: 99%

Sorption isotherms and kinetics of chromium uptake from wastewater using natural sorbent material

Shah

Shah²,

Singh

2008

Int. J. Environ. Sci. Technol.

104

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Chromium (VI) which exists in many industrial wastewater is considered highly toxic. The aim of the present investigation was to study the reduction of chromium (VI) to chromium (III) and then removing it with the help of weathered basalt andesite products. Reduction of the chromium (VI) to chromium (III) by hydrazinium sulfate was investigated. The influence of hydronium ion concentration, contact time, hydrazinium sulphate dosage and temperature has been tested in batch runs. The process was found to be acid, temperature and concentration dependent. The suitability of weathered basalt andesite products as a potential sorbent was assessed for the removal of chromium (III) following batch mode of operation. The effect of various parameters such as hydronium ion concentration, shaking time, sorbent dose, initial metal ion concentration and temperature on the removal of chromium (III) from aqueous solution was studied. Thermodynamic parameters (∆H°, ∆S° and ∆G°) for the sorption process were evaluated. Analysis of sorption obtained results showed that the sorption pattern followed the Freundlich, Langmuir and Dubinin-KaganerRadushkevich isotherms. The process follows pseudo second order rate and surface diffusion is identified as the predominating mechanism. The sorption process was shown to be reversible by the recovery of sorbed chromium (III) upon extraction with 0.5 M nitric acid. The sorbent, before and after sorption, was characterized by fourier transform infrared spectrometer, X-ray diffraction, scanning electron microscope, transmision electron microscope and thermogravimetric analyse methodes. An increase in crystallanity after sorption of chromium was observed. An industrial effluent was successfully treated with the same sorbent with convincing results.

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Section: Introductionmentioning

confidence: 99%

Sorption isotherms and kinetics of chromium uptake from wastewater using natural sorbent material

Shah

Shah²,

Singh

2008

Int. J. Environ. Sci. Technol.

104

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“…Hexavalent (as well as metry (AAS); direct current plasma (DCP)-and inductively pentavalent) Cr species are strong oxidants which act as coupled plasma (ICP)-atomic emission spectrometry (AES); carcinogens, mutagens and teratogens in biological systems inductively coupled plasma mass spectroscopy (ICP-MS); (for reviews, see Refs. [25,31,32]). The structural similarly UV-vis spectrometry and thermal lens spectrometry (TLS) of chromate anions (dominant Cr(VI) species at pH <6.1, (for a review see Ref.…”

Section: Introductionmentioning

confidence: 99%

Determination of chromium valence over the range Cr(0)–Cr(VI) by electron energy loss spectroscopy

2006

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“…Chromium exists in two major oxidation states: +3, which is an essential nutrient, and +6, which is highly toxic and carcinogenic (Cieslak-Golonka 1996). It has been proposed that Cr(VI) is toxic because it can penetrate cells, be reduced to Cr(III), and then generate reactive oxygen species, such as hydroxyl radical, that can cause DNA damage (Cohen et al 1993).…”

Section: Introductionmentioning

confidence: 99%

Laboratory Study of Simulated Atmospheric Transformations of Chromium in Ultrafine Combustion Aerosol Particles

Werner

Nico

Guo

et al. 2006

Aerosol Science and Technology

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While atmospheric particles can have adverse health effects, the reasons for this toxicity are largely unclear. One possible reason is that the particles can contain toxic metals such as chromium. Chromium exists in the environment in two major oxidation states: III, which is an essential nutrient, and VI, which is highly toxic and carcinogenic. Currently little is known about the speciation of chromium in airborne particles or how this speciation is altered by atmospheric reactions. To investigate the potential impacts of atmospheric aging on the speciation and toxicity of chromiumcontaining particles, we collected chromium and chromium-iron combustion ultrafine particles on Teflon filters and exposed the particles to a combination of light, ozone, water vapor, and, in We thank Dr. Matthew Newville of the GSECARS at the Advanced Photon Source (APS), Argonne National Laboratory, for his assistance. The majority to the X-ray data presented above were collected at GeoSoilEnviroCARS (Sector 13), which is supported by the National Science Foundation-Earth Sciences (EAR-0217473), Department of Energy-Geosciences (DE-FG02-94ER14466) and the State of Illinois. Use of the APS was supported by the U.S. Department of Energy under Contract No. W-31-109-Eng-38. We would also like to thank Dr. Matthew Marcus of beamline 10.3.2 of the Advanced Light Source (Lawrence Berkeley National Laboratory), which is supported by the US Department of Energy (DE-AC02-05CH11231). Portions of this research were also carried out at the Stanford Synchrotron Radiation Laboratory, operated by Stanford University on behalf of the U.S. Department of Energy. Finally, we thank David Paige (Paige Instruments) for constructing the ozone generator, John Newberg and Mike JimenezCruz for building the ozone dilution and delivery system, and Michelle Gras of the UC Davis Interdisciplinary Center for Plasma Mass Spectrometry for conducting the ICP-MS analyses. This work was supported by grant number 5 P42 ES04699 from the National Institute of Environmental Health Sciences (NIEHS) of the NIH, and by a fellowship from the UC Davis NEAT-IGERT program to Michelle Werner (NSF IGERT Grant # 9972741). Partial support was also provided by the U.S. Department of Energy under contract number DE-AC02-05CH11231. The contents of this paper are solely the responsibility of the authors and do not necessarily represent the official views of the NIEHS, NIH.Address correspondence to Cort Anastasio, One Shields Avenue, Department of Land, Air & Water Resources, University of California, Davis, CA 95616. E-mail: canastasio@ucdavis.edu some cases, basic or acidic conditions. After the aging process, the aged and not-aged samples were analyzed for Cr oxidation state using X-ray Absorption Near Edge Spectroscopy (XANES). We found that the aging process reduced Cr(VI) by as much as 20% in chromium particles that had high initial Cr(VI)/Cr(total) ratios. This reduction of Cr(VI) to Cr(III) appears to be due to reactions primarily with light and hydroperoxyl radical (HO 2 ) in the...

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Toxic and mutagenic effects of chromium(VI). A review

Cited by 327 publications

References 139 publications

Sorption isotherms and kinetics of chromium uptake from wastewater using natural sorbent material

Sorption isotherms and kinetics of chromium uptake from wastewater using natural sorbent material

Determination of chromium valence over the range Cr(0)–Cr(VI) by electron energy loss spectroscopy

Laboratory Study of Simulated Atmospheric Transformations of Chromium in Ultrafine Combustion Aerosol Particles

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