Publications by authors named "C R Klauck"
Article Synopsis
- Photocatalysis has shown promise in reducing emerging water pollutants, especially moxifloxacin (MOX), which can cause bacterial resistance and toxicity due to poor wastewater treatment.
- The study tested a compound parabolic concentrator (CPC) reactor for degrading MOX using both sunlight and UV-A light, achieving approximately 65% degradation with sunlight compared to 44% with artificial light.
- Post-treatment analysis indicated that sunlight degraded MOX effectively, eliminating its acute toxicity and genotoxic effects, while the transformation products showed no harmful effects on plant seeds and bulbs.
Inhalation of xenobiotics during manufacture process in chrome plating bath produce hazards to workers' health. Chromium (Cr) is a metal widely used by industry, and its hexavalent (VI) form has been classified as mutagenic and carcinogenic. This study aimed to evaluate the occupational risk of exposure to metals in chrome plating workers.
View Article and Find Full Text PDFClean air is essential for the maintenance of human life and environmental balance. The atmospheric particulate matter (PM) is one of the main air pollutants and is characterized by the heterogeneity of its composition, being able to accumulate numerous components, such as metallic elements, which contribute to increasing its toxicity. The objectives of this study were to assess of the air quality in two urban environments, to carry out the source apportionment of the metallic elements Al, Ba, Cd, Pb, Cu, Cr, Fe, Mn, Ni, and Zn in the PM and PM, and evaluate the toxicity of PM and PM water-soluble fractions using Lactuca sativa as bioindicator.
View Article and Find Full Text PDFArticle Synopsis
- Advanced oxidation processes are being developed to address the environmental harm from emerging contaminants, but can produce toxic byproducts.
- The study focused on the effects of 2,4,6-tribromophenol (TBP) on the germination and root health of L. sativa and A. cepa, showing that UV treatment methods like direct photolysis increased toxicity while heterogeneous photocatalysis and photoelectrolysis did not.
- Results indicate that different UV treatments lead to varying levels of phytotoxicity and genotoxicity, highlighting the need for thorough assessments of new treatment methods and their byproducts.
DNA Damage in Wistar Rats Exposed to Organophosphate Pesticide Fenthion.
J Environ Pathol Toxicol Oncol
February 2018
In the last several decades, exposure to pesticides has become a concern to environmental and human health. Many pesticides are environmentally persistent and are characterized by varying degrees of toxicity and adverse effects, including DNA damage. The present study was undertaken to evaluate the genotoxic potential of organophosphate pesticide fenthion in Wistar rats, as assessed by the comet assay.
View Article and Find Full Text PDF