Results 1 to 10 of about 121,637 (214)

Occupational exposure to chromium(VI) compounds

open access: yesMedycyna Pracy, 2015
This article discusses the effect of chromium(VI) (Cr(VI)) on human health under conditions of acute and chronic exposure in the workplace. Chromium(VI) compounds as carcinogens and/or mutagens pose a direct danger to people exposed to them.
Jolanta Skowroń, Katarzyna Konieczko
doaj   +3 more sources

RICE BRAN CARBON: AN ALTERNATIVE TO COMMERCIAL ACTIVATED CARBON FOR THE REMOVAL OF HEXAVALENT CHROMIUM FROM AQUEOUS SOLUTION [PDF]

open access: yesBioResources, 2010
Rice bran carbon (RBC) prepared from rice bran (an agricultural waste) was successfully utilized for the removal of hexavalent chromium from aqueous solution.
Syed Hadi Hasan, Deeksha Ranjan
doaj   +1 more source

Removal of Lead and Chromium (VI) metals from Water in the Batch System Using Activated Gamma Alumina [PDF]

open access: yesمحیط زیست و مهندسی آب, 2021
Increased water pollution has become an important environmental problem due to the discharge of urban and industrial wastewater into water resources that contain heavy metals and other pollutants.
Ghasem Zolfaghari   +2 more
doaj   +1 more source

Adsorption of Chromium (VI) from Polluted Water Using Core/Shell Nano Magnetic Particles of Fe3O4/CoO [PDF]

open access: yesآب و فاضلاب, 2020
Chromium (VI) enters water resources via effluents of metallurgical, chemical pigments, electroplating, and tanning industries. The chromium accumulation in animal and plant tissues can cause serious dangers.
Faranak Akhlaghian, Maysam Moradi
doaj   +1 more source

Biosorption of hexavalent chromium in a tannery industry wastewater using fungi species [PDF]

open access: yesGlobal Journal of Environmental Science and Management, 2016
The isolated fungi species of different kinds from chromium contaminated soil sites located in Nagalkeni, Chennai were used for reducing chromium(VI) in a tannery industry wastewater of Nagalkeni, Chennai.
D. Sivakumar
doaj   +1 more source

Microbial Mechanisms for Remediation of Hexavalent Chromium and their Large-Scale Applications; Current Research and Future Directions

open access: yesJournal of Pure and Applied Microbiology, 2021
The increase of anthropogenic activities has led to the pollution of the environment by heavy metals, including chromium (Cr). There are two common oxidative states of Cr that can be found in industrial effluents the trivalent chromium Cr(III) and the ...
Amr Arishi, Ibrahim Mashhour
doaj   +1 more source

Chromium(III) — chromium(VI) interconversions in seawater [PDF]

open access: yesMarine Chemistry, 1982
The stable form of dissolved chromium in oxygenated seawater is Cr(VI). But Cr(III)-species are also present at an analytically significant level. It is shown that Cr(III) is oxidized only slowly by dissolved oxygen, and that manganese oxide is a strong catalyst for such oxidation.
Weijden, C.H. van der, Reith, M.
openaire   +2 more sources

Responses of endogenous proline in rice seedlings under chromium exposure [PDF]

open access: yesGlobal Journal of Environmental Science and Management, 2016
Hydroponic experiments were performed to exam the dynamic change of endogenous proline in rice seedlings exposed to potassium chromate chromium (VI) or chromium nitrate chromium (III).
X.Z. Yu, M.R. Lu
doaj   +1 more source

Simultaneous spectrophotometric determination of chromium(VI) and iron (III) by H-point standard addition method [PDF]

open access: yes, 2008
In this work the possibility of simultaneous spectrophotometric determination of chromium (VI) and iron (III) in alloys with help of the mixed organic reagent (diphenylcarbazide and 1,10-phenanthroline) is studied.
E V Larionova   +14 more
core   +2 more sources

Hexavalent-Chromium-Induced Oxidative Stress and the Protective Role of Antioxidants against Cellular Toxicity

open access: yesAntioxidants, 2022
Hexavalent chromium is a highly soluble environmental contaminant. It is a widespread anthropogenic chromium species that is 100 times more toxic than trivalent chromium.
Veer Singh   +11 more
doaj   +1 more source

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