Aim: The aim of this study was to determine hydrogen sulphide concentration emitted from the mine extracting copper ore, to evaluate potential adverse health effects to the population living in four selected villages surrounding the exhaust shaft.
Materials: Maximum measured concentration of hydrogen sulphide in the emitter is 286 µg/m³. Maximum emission calculated from the results of determinations of concentrations in the emitter is 0.44 kg/h.
Results: In selected villages hydrogen sulphide at concentrations exceeding 4 µg/m³ was not detected in any of the 5-hour air samples. In all locations, the estimated maximum 1-hour concentrations of hydrogen sulphide were below 1 µg/m³, and the estimated mean annual concentrations were below 0.53 µg/m³.
Conclusion: Any risk to the health of people in the selected area is not expected. As indicated by the available data on the threshold odour, the estimated concentrations of hydrogen sulphide may be sensed by humans.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.21101/cejph.a4033 | DOI Listing |
Pharmaceuticals (Basel)
December 2024
Department of Physiology, University of Louisville School of Medicine, Louisville, KY 40202, USA.
Late-onset Alzheimer's disease (LOAD) is a chronic, multifactorial, and progressive neurodegenerative disease that associates with aging and is highly prevalent in our older population (≥65 years of age). This hypothesis generating this narrative review will examine the important role for the use of sodium thiosulfate (STS) as a possible multi-targeting treatment option for LOAD. Sulfur is widely available in our environment and is responsible for forming organosulfur compounds that are known to be associated with a wide range of biological activities in the brain.
View Article and Find Full Text PDFMolecules
December 2024
School of Pharmaceutical Sciences, Gannan Medical University, Ganzhou 341000, China.
Photocatalytic hydrogen evolution using inexhaustible clean solar energy is considered as a promising strategy. In order to build an efficient photocatalytic hydrogen production system to satisfy the demands of practical applications, it is of great significance to design photocatalysts that offer high activity, low cost, and high stability. Herein, a series of cheap CdS/Ni(OH) composite photocatalysts were designed and synthesized using the hydrothermal method.
View Article and Find Full Text PDFMaterials (Basel)
December 2024
Intelligent Water Networks, Melbourne, VIC 3000, Australia.
Around the world, a significant proportion of sewers and sewer maintenance holes are constructed from concrete. Unfortunately, one major problem with concrete sewer infrastructure is corrosion caused by biogenic hydrogen sulphide, which causes major issues for concrete structural integrity. Furthermore, concrete may be significantly corroded and softened but still pass a visual inspection.
View Article and Find Full Text PDFInt J Mol Sci
December 2024
Department of Pathology and Biomedical Science, University of Otago, Christchurch 8140, New Zealand.
Sepsis is a life-threatening complication caused by an uncontrolled immune response to infection that can lead to multi-organ dysfunction, including liver injury. Recent research has shown the critical role of gut microbiota in sepsis pathogenesis, with the gut-liver axis playing a crucial role in disease progression. Mechanisms such as the disruption of the gut barrier and liver injury pathways mediated by cytokines, chemokines, adhesion molecules, hydrogen sulfide (HS).
View Article and Find Full Text PDFBiomedicines
December 2024
Department of Thermophysiology, Institute for Translational Medicine, Medical School, University of Pecs, 7624 Pecs, Hungary.
Hydrogen sulfide (HS) is a gasotransmitter that modulates vascular tone, causing either vasodilation or vasoconstriction depending on the vascular bed, species, and experimental conditions. The cold-sensitive transient receptor potential ankyrin-1 (TRPA1) channel mediates HS-induced effects; however, its contribution to the vasomotor responses of different arteries at different temperatures has remained unclear. Here, we aimed to fill this gap by comparing the effects of sodium sulfide (NaS), which is a fast-releasing HS donor, on the isolated carotid and tail skin arteries of rats and mice at cold and normal body temperature with wire myography.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!