Study on Cr

Adverse Human Health Effects of Chromium by Exposure Route

In this study, we explore the toxic effects of Cr exposure through three exposure routes: dermal contact, inhalation, and ingestion.

Current Understanding of Hexavalent Chromium [Cr(VI ...

Studies of Cr(VI) neurotoxicity with animal and cell culture models have demonstrated elevated markers of oxidative damage and redox stress, with widespread ...

A study on the Cr(VI) removal from aqueous solutions by steel wool

The results showed that the reduction of Cr(VI), to a large extent, depended on, and increased with, acid concentration. The Cr(III) and iron ions in the ...

What is Complete Response (CR) in Clinical Trials?

Complete response (CR) is defined as the absence of detectable tumor in the patient's body. Radiology and histopathology are used to measure ...

Peer-Reviewed Research on Hexavalent Chromium

Over 30 peer-reviewed scientific papers that provide clear data that can help EPA and other regulators confidently set safe drinking water standards for ...

Speciation Analysis of Cr(VI) and Cr(III) in Water with Surface ...

We show in this report that Cr(VI) and Cr(III) in water can be differentiated based on their distinct spectral features of surface-enhanced ...

Ecotoxicity study of reduced-Cr(III) generated by Cr(VI) biosorption

Our findings demonstrate that Cr(VI) biosorption technology using pine bark is a groundbreaking technology for Cr(VI) detoxification.

Determination of Hexavalent Chromium (Cr(VI)) Concentrations via ...

chromatography and UV-Vis spectrophotometry are below the maximum USEPA contaminant concentration of 0.1 ppm. From the analysis, the NWWTP efficiently removes ...

An Exploratory Study on the Pathways of Cr (VI) Reduction in Sulfate ...

This study mainly investigates the pathways for Cr (VI) removal under biological sulfate-reducing condition in the up-flow anaerobic sludge bed (UASB) reactor.

Experimental and Modeling Study on Cr(VI) Migration from Slag into ...

The transport and prediction of hexavalent chromium (Cr(VI)) contamination in “slag–soil–groundwater” is one with many uncertainties.

Comparative study of Cr(VI) removal by bio-waste adsorbents

2017). The percentage adsorption of Cr(VI) was observed as 34.55% at 2.5 g/L and 94.15% at 25 g/L with the adsorbent dose of BP. When adsorption ...

Adsorption and kinetic study of Cr(VI) on ZIF-8 based composites

In this study, adsorption of hexavalent chromium has been examined on ZIF-8 and its various composites. ZIF-8 was modified by using amine groups, GO and Mg(OH) ...

A Comparative Study of Cr(VI) Sorption by Aureobasidium pullulans ...

Melanin as a natural polymer is found in all living organisms, and plays an important role in protecting the body from harmful UV rays from the sun.

Hexavalent Chromium Cr(VI) Drinking Water Cancer Study

The National Toxicology Program (NTP) reported that very high levels of hexavalent chromium [Cr(VI)] in drinking water caused certain cancers in laboratory ...

Influencing factors and mechanism of Cr(VI) reduction by facultative ...

The present study investigated the influence of environmental factors on aqueous Cr(VI) removal by a newly isolated facultative anaerobic bacterium, ...

What Is the Biologic Fate of Chromium in the Body?

Learning Objectives. Upon completion of this section, you will be able to ... In vivo reduction of Cr(VI) to Cr(III) has been widely studied. Ingested ...

Full article: Chromium - Taylor & Francis Online

121 An etiological research study of 398 chromate workers at a new facility, where <99% of the personal breathing zone samples were <50 μg Cr (VI)/m3, did not ...

Total Chromium & Hexavalent Chromium Measurement - US

Since Cr(III) is not toxic and Cr(VI) is highly toxic, chromium speciation analysis can provide data for the percentage of Cr(VI) in a given water sample. One ...

Digestion treatments and risks of Cr(III)-Cr(VI) interconversions ...

However, the applicability of this method to the analysis of Cr(VI) in soil and sediment samples, whose extracts may suffer from the interference by humic ...

IRIS Toxicological Review of Hexavalent Chromium [Cr(VI)] CASRN ...

The RfD is based on a high confidence chronic 2-year drinking water study by NTP (2008) that exposed rats and mice of both sexes to Cr(VI) as ...