Tackling Atmospheric Chemistry Grand Challenges in the Southern Hemisphere. The project aims to provide a southern hemisphere perspective on current challenges in atmospheric chemistry: air quality, oxidation capacity, stratospheric change, and chemistry–climate interactions. Australia’s geographic position in the relatively clean southern hemisphere allows a unique opportunity to study environments with limited human influence, an opportunity that has largely been lost in the more populous nort ....Tackling Atmospheric Chemistry Grand Challenges in the Southern Hemisphere. The project aims to provide a southern hemisphere perspective on current challenges in atmospheric chemistry: air quality, oxidation capacity, stratospheric change, and chemistry–climate interactions. Australia’s geographic position in the relatively clean southern hemisphere allows a unique opportunity to study environments with limited human influence, an opportunity that has largely been lost in the more populous northern hemisphere. The intended outcomes of the project include validated ground-based and satellite datasets for monitoring Australia’s air quality, improved atmospheric models for predicting future atmospheric change, and a deeper understanding of the processes driving atmospheric composition worldwide.Read moreRead less
Gravity Current Driven Smoke Dispersion In a Stratified Ambient. Smoke from bushfires transported by gravity currents, and known to occur nationwide, caused the shutdown of businesses, education and events in Canberra in 2019. Recent scientific investigations have shown that the speed of propagation and concentration of smoke in these three-dimensional gravity currents have a long term ‘memory’ of their initial configuration. In this project, high-fidelity computational and experimental techniq ....Gravity Current Driven Smoke Dispersion In a Stratified Ambient. Smoke from bushfires transported by gravity currents, and known to occur nationwide, caused the shutdown of businesses, education and events in Canberra in 2019. Recent scientific investigations have shown that the speed of propagation and concentration of smoke in these three-dimensional gravity currents have a long term ‘memory’ of their initial configuration. In this project, high-fidelity computational and experimental techniques will be used to elucidate the fundamental mechanisms of gravity current entrainment and propagation. This knowledge will set a strong foundation to improve operational forecasts of smoke transport that will allow government agencies to better respond to the negative impact of these complicated flows.Read moreRead less
A highly sensitive and selective nano-engineered sensor for the online monitoring of mercury vapour emissions from harsh industrial processes. The Australian alumina and aluminium industries contribute over $11 billion export income annually. All refineries, except one, operate in rural areas and are the main economic drivers in these regions. In order to maintain the industry's commitment to reduce the environmental impact of its processes and remain economically sustainable, innovative technol ....A highly sensitive and selective nano-engineered sensor for the online monitoring of mercury vapour emissions from harsh industrial processes. The Australian alumina and aluminium industries contribute over $11 billion export income annually. All refineries, except one, operate in rural areas and are the main economic drivers in these regions. In order to maintain the industry's commitment to reduce the environmental impact of its processes and remain economically sustainable, innovative technologies are required to monitor mercury emissions. The aim of this project is to develop robust sensors, for online monitoring of mercury vapours, that operate under challenging industrial environments. This project will also provide excellent training for young researchers in established international industrial research groups, thereby meeting skill shortages in the Australian resource sector.Read moreRead less
Formation, photochemistry and fate of gas-phase peroxyl radicals. This project aims to understand how peroxyl radical reactions modulate the composition of air. The gas-phase chemical reactions of organic peroxyl radicals contribute to air quality in clean and polluted environments. However, experimental observations of these reaction intermediates and the complex mechanisms governing their formation and fate are limited. This project will use mass spectrometry and laser-based methods to interro ....Formation, photochemistry and fate of gas-phase peroxyl radicals. This project aims to understand how peroxyl radical reactions modulate the composition of air. The gas-phase chemical reactions of organic peroxyl radicals contribute to air quality in clean and polluted environments. However, experimental observations of these reaction intermediates and the complex mechanisms governing their formation and fate are limited. This project will use mass spectrometry and laser-based methods to interrogate the chemical and photochemical reactions of peroxyl radicals in the gas phase. This project expects to understand the composition and dynamics of the troposphere and inform strategies to improve air quality.Read moreRead less
An integrated model for assessing health effects of nanoparticle inhalation. This project aims to examine the associated risks of nanoparticle inhalation on heath by developing a toxicological predictive tool for health risk assessment. The outcomes of this research will lead to greatly improved preventative measures, thereby reducing occupational diseases and the health socio-economic burden of Australia.
A Multiscale Modelling Platform for Nanoparticle Inhalation Risk Assessment. This project aims to explore the health risks caused by nanoparticle inhalation and its penetration through respiratory mucus and tissue cells. Exposure to nanoparticles has the potential to cause serious and possibly fatal health effects. An understanding of nanoparticle toxicology would enable us to appropriately protect the public’s health and safety. The project plans to consider human respiratory anatomy and physio ....A Multiscale Modelling Platform for Nanoparticle Inhalation Risk Assessment. This project aims to explore the health risks caused by nanoparticle inhalation and its penetration through respiratory mucus and tissue cells. Exposure to nanoparticles has the potential to cause serious and possibly fatal health effects. An understanding of nanoparticle toxicology would enable us to appropriately protect the public’s health and safety. The project plans to consider human respiratory anatomy and physiology and use advanced computer modelling and experimental techniques to evaluate the health risk of exposure to the burgeoning number of nanomaterials found in consumer products. The expected outcome of the project is a predictive tool that determines nanoparticle exposure risk and its health consequences.Read moreRead less
Quantification of airborne engineered nanoparticles: developing a scientific framework to inform their regulation and control. Despite the presence of airborne engineered nanoparticles in many commercial/research facilities, there are no established methods for their detection/characterisation. This work aims to develop a foundation for the quantitative assessment of airborne engineered nanoparticles, which is critical for controlling exposure and minimising health risks.
Detection, characteristics and dynamics of airborne engineered nanoparticles for human exposure assessment. Recent advances in nanotechnology have led to questions about the safety of airborne engineered nanoparticles in commercial and research facilities. This project aims to develop an understanding of nanoparticle emission and behaviour in the air, which is needed to control workplace exposure to these particles and minimise the risk to human health.
The New Oxidation Chemistry of Amines. Organic compounds containing nitrogen, including amines, are distributed throughout the atmosphere, where they are removed through oxidation reactions. Surprisingly little attention, however, has been directed towards the oxidation chemistry of amines. This problem is of growing importance as the leading technology for carbon capture from power stations involves amine solvents, which would potentially lead to large new sources of amines to the atmosphere. T ....The New Oxidation Chemistry of Amines. Organic compounds containing nitrogen, including amines, are distributed throughout the atmosphere, where they are removed through oxidation reactions. Surprisingly little attention, however, has been directed towards the oxidation chemistry of amines. This problem is of growing importance as the leading technology for carbon capture from power stations involves amine solvents, which would potentially lead to large new sources of amines to the atmosphere. This project will develop the new chemistry required to describe the oxidation of amines in the atmosphere, in order to better predict the impact of these under-studied molecules on air quality.Read moreRead less
Developing an integrated predictive model for optimal design of ventilation systems in buildings. This project will undertake a comprehensive study to characterize indoor contaminant exposure to develop an integrated predictive model for optimal design of ventilation systems. The outcomes of this research may lead to improved preventative measures, reducing occupational diseases and cutting socio-economic burden to the Australian community.