https://nova.newcastle.edu.au/vital/access/ /manager/Index en-au 5 https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:38910 Wed 07 Feb 2024 16:34:13 AEDT ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:51254 Tue 29 Aug 2023 10:47:01 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:39841 Thu 28 Jul 2022 10:57:07 AEST ]]> https://nova.newcastle.edu.au/vital/access/ /manager/Repository/uon:39491 4) at depth greater than 500 m from earth surface. The average mass concentration of PM₄ was extremely higher than recommended values. QXRD and FESEM-EDS analyses were applied to study the micro-mineralogy and micro-morphology of respirable dusts. The chemical analysis by ICP-MS revealed an enrichment of V, Cr, Cu, Zn, As, Ag, Cd and Sb in respirable dust compared with the background environment and world coals. The EPA’s health risk model showed that the health risk posed by Cr and Co in all workplaces exceeded the acceptable risk value for human health. The synthetic respiratory tract lining fluid (RTLF) model was utilized to achieve a novel insight into the toxicity of respirable coal dust. The result showed an overall depletion of lung surface antioxidants with the decreasing trend of ascorbic acid > reduced glutathione >> urate, implying low- to medium level of oxidative stress. The result of this study can be applied globally by decision-makers to decrease hazardous exposure of mine workers to respirable dust.]]> Fri 10 Jun 2022 14:04:34 AEST ]]>