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Natural gas combined-cycle (NGCC) turbines with carbon capture and storage (CCS) can be a promising technology to reduce CO2 emissions in the electric sector. However, the high cost and energy penalties of current carbon capture devices, as well as methane leakage from natural ga...

Increasing air temperature is expected to extend growing season length in temperate, broadleaf forests, leading to potential increases in evapotranspiration and net carbon uptake. However, other key processes affecting water and carbon cycles are also highly temperature-dependent...

Background Most research into myocardial infarctions (MIs) have focused on preventative efforts. For survivors, the occurrence of an MI represents a major clinical event that can have long-lasting consequences. There has been little to no research into the molecular changes that...

The purpose of the current literature review was to identify, collect, review, and organize all available information concerning the remediation of methamphetamine found in clandestine laboratories through an analysis of routinely collected data sources. There were numerous peer ...

Green infrastructure (GI) in urban areas may be adopted as a passive control system to reduce air pollutant concentrations. However, current dispersion models offers limited modelling options to evaluate its impact on air pollutant concentrations. The aim of this review is to add...

Product Description: Industrial facilities have the potential to emit volatile organic compounds (VOCs), hazardous air pollutants (HAPs), and odorous species from unintended sources including fugitive leaks, process malfunctions, and improperly controlled operations. Stochastic i...

Given the intensity and frequency of environmental change, the linked and cross-scale nature of social-ecological systems, and the proliferation of big data, methods that can help synthesize complex system behavior over a geographical area are of great value. Fisher information e...

Ideally, new electricity generating units will have low capital costs, low fuel costs, minimal environmental impacts, and satisfy demand without concerns of intermittency. When expanding generating capacity, candidate technologies can be evaluated against criteria such as these. ...

The compositional details of nitroaromatic compounds (NACs) emitted during biomass burning (BB) and their contribution to light-absorbing organic carbon (OC), also termed brown carbon (BrC), are poorly understood. In this study, three laboratory BB experiments were conducted with...

Light-absorbing organic carbon (OC), also referred to as “brown carbon” (BrC), has been intensively investigated in biomass burning (BB) impacted atmospheres. However, other BrC sources (e.g., secondary formation) are rarely studied in ambient aerosols. In the current work, forty...

Residential fuel burning contributes significantly to severe ambient and indoor air pollution in China; however, this pollution source is often overlooked in current national pollution control policies. Few studies, and even fewer field-based investigations, have evaluated pollut...

Smart new strategies to design, produce, and use safer chemicals to minimize risks and prevent pollution are a priority for the U.S. Environmental Protection Agency (EPA). EPA is developing a comprehensive approach to enhance the Agency’s management of existing chemicals and emer...

Household cookstove emissions are an important source of carbonaceous aerosols globally. The light-absorbing organic carbon (OC), also termed brown carbon (BrC), from cookstove emissions can impact the Earth’s radiative balance, but is rarely investigated. In this work, PM2.5 fil...

Until recently, most of energy and industrially produced chemicals were derived from fossil fuel-based resources. This along with the continued depletion of finite fossil resources and their attributed adverse environmental impacts, alternatively sourced and more sustainable reso...

Livestock waste may cause air quality degradation from ammonia and methane emissions, soil quality detriment from the in-excess nutrients and acidification, and water pollution issues from nutrient and pathogens runoff to the water bodies, leading to eutrophication, algal blooms,...

Emission of semi-volatile organic compounds (SVOCs) from source materials usually occurs very slowly in indoor environments due to their low volatility. When the SVOC emission process is controlled by the external mass transfer, the gas-phase concentration in equilibrium with the...

As part of the U.S. Environmental Protection Agency’s continuing assessment of advanced light-duty automotive technologies to support the setting of appropriate national greenhouse gas standards, and to evaluate the impact of new technologies on in-use emissions, a 2016 Honda Civ...

Biogenic isoprene emissions play a very important role in atmospheric chemistry. They are strongly dependent on various environmental conditions, such as temperature, solar radiation, plant water stress, ambient ozone and CO2 concentrations, and soil moisture. Current biogenic ...

Gaseous and particulate emissions generated from the combustion of coal have been associated with adverse effects on human health and the environment, and have therefore been the subject of regulation by federal and state government agencies. Detailed emission characterizations ...

The Life Cycle Environmental Assessment (LCEA) process for military munitions tracks possible environmental impacts incurred during all phases of the life of a munition. The greatest energetics-based emphasis in the current LCEA process is on manufacturing. A review of recent LCE...

An emission sensor/sampler system was coupled to a NASA hexacopter unmanned aerial system (UAS) to characterize gases and particles in the plume emitted from open burning of military ordnance. The UAS/sampler was tested at two field sites resulting in 33 flights at Radford, VA a...

The present study examines the effects of fuel (an ultra-low sulfur diesel [ULSD] versus a 20% v/v soy-based biodiesel—80% v/v petroleum blend [B20]), temperature, load, vehicle, driving cycle, and active regeneration technology on gas- and particle-phase carbon emissions from li...

Understanding the sorption mechanisms for organophosphate flame retardants (OPFRs) on impervious surfaces is important if we are to improve our understanding of the fate and transport of OPFRs in indoor environments. Traditional Langmuir and Freundlich models are widely adopted t...

The comparative combustion emissions of using jet propellant (JP-5) liquid fuel pools or a propane manifold grid to simulate the effects of accidental fires was investigated. A helium-filled tethered aerostat was used to maneuver an instrument package into the open fire plumes ...

The light absorption of carbonaceous aerosols plays an important role in the atmospheric radiation balance. Light-absorbing organic carbon (OC), also called brown carbon (BrC), from laboratory-based biomass burning (BB) has been studied intensively to understand the contribution ...