BACKGROUND Microalgae are touted as an attractive alternative to traditional forms of biomass for biofuel production, due to high productivity, ability to be cultivated on marginal lands, and potential to utilize carbon dioxide (CO2) from industrial flue gas. This work examines the fossil energy return on investment (EROIfossil), greenhouse gas (GHG) emissions, and direct Water Demands (WD) of ...

In recent years, several researchers have studied the potential use of ammonia (NH3) as an energy vector, focused on techno-economic advantages and challenges for full global deployment. The fuel is seen a strategy to support decarbonization; however, confirm sustainability shift in thermal engines, study environmental profile needed. This paper aims assess life cycle impacts ammonia-based elec...

A simulation-based life cycle assessment was conducted to compare the impacts of different cyanide-free chloride processing routes for refractory ores determine whether one-stage leaching gold from could be advantageous over after conventional pressure oxidation an environmental perspective. It shown that both conditions and refractoriness ore strongly affect process. The global warming potenti...

Global consumption of materials is rising rapidly leading to an increase in environmental impacts associated with the supply chain. Similar issues also affect a set strategic for transition towards sustainable energy production and distribution system: i.e. employed renewable (wind turbines photovoltaic panels), storage, electrolysers, electricity networks electric vehicle charging infrastructu...

BACKGROUND Asthma is a chronic disease that may affect daily activities and quality of life. Asthmatics have higher incidence of chronic rhinosinusitis (CRS) and asthma is associated with sinonasal inflammation and nasal symptoms, that all impair quality of life. Worsening of asthma has been found associated with levels of nitrogen dioxide as traffic indicator. AIMS The aim of the study was t...

Correspondence to Dr Johan Nilsson Sommar; johan.n.sommar@envmed. umu.se ABSTRACT Background: Asthma is a chronic disease that may affect daily activities and quality of life. Asthmatics have higher incidence of chronic rhinosinusitis (CRS) and asthma is associated with sinonasal inflammation and nasal symptoms, that all impair quality of life. Worsening of asthma has been found associated with...