Aquatic environments are among the most vulnerable habitats that affect all Organisms. The Persian Gulf is home to numerous plant and animal species, biological safety at risk due its human activities. Traffic of oil commercial vessels in area, waste water, desalination, proximity industrial, refinery petrochemical units shores rivers, rigs, fishing, tourism activities potential hazards environ...

Organic Rankine Cycles using radial turbines as expanders are considered as one of the most efficient technologies to convert heavy-duty diesel engine waste heat into useful work. Turbine similarity design based on the existing air turbine profiles is time saving. Due to totally different thermodynamic properties between organic fluids and air, its influence on turbine performance and loss mech...

In this study, the adsorption mechanism and hydroxyl radical ((•)OH)-initiated photocatalytic degradation mechanism of styrene onto different (TiO2)n clusters were investigated using density functional theory. Styrene, a typical model atmospheric volatile organic compound (VOC), was found to be readily adsorbed onto (TiO2)n clusters through its vinyl group with strong chemisorption. This sugges...

Title of Document: DEVELOPMENT, ENHANCEMENT, AND EVALUATION OF AIRCRAFT MEASUREMENT TECHNIQUES FOR CRITERIA AIR POLLUTANTS Lacey Cluff Brent, Doctor of Philosophy, 2014 Directed By: Professor Russell R. Dickerson, Department of Atmospheric and Oceanic Sciences and Department of Chemistry and Biochemistry The atmospheric contaminants most harmful to human health are designated Criteria Pollutant...

Humans are generally exposed to a variety of pollutions present in the air they breathe, food eat or water drink. Some most dangerous metals and heavy metals. These naturally occurring substances which harmless when environment at low levels. However, due many pollutants such as industry processes war activities, metal concentration can exceed limit tolerance become very toxic for natural livin...

Empirical evidence evaluating the e¢ciency of economic instruments is still rare, despite signi...cant theoretical advances over the last decades. The purpose of the paper is to evaluate one form of environmental taxation, the French tax on air pollution from 1990-99. While starting out in 1985 as a tax levied only on sulphur emissions, the tax base was subsequently extended to encompass also e...

Single particles were collected from an aircraft platform as part of the Intercontinental Chemical Transport Experiment – Phase B (INTEX-B) conducted over the eastern Pacific and western North America. Single particle spectra were obtained using scanning transmission X-ray microscopy-near edge X-ray absorption fine structure spectroscopy (STXM-NEXAFS). Bulk submicron particles were also collect...

We report simultaneous measurements of volatile organic compound (VOC) mixing ratios including C6 to C8 aromatics, isoprene, monoterpenes, acetone and organic aerosol mass loadings at a rural location in southwestern Ontario, Canada by Proton-Transfer-Reaction Mass Spectrometry (PTR-MS) and Aerosol Mass Spectrometry (AMS), respectively. During the three-week-long Border Air Quality and Meteorol...

OBJECTIVES To establish by literature survey: (a) levels at which air pollutants are considered damaging to human health and to exercisers in particular; (b) the current ambient levels experienced in the United Kingdom; (c) whether athletes are especially at risk. METHODS Six major urban air pollutants were examined: carbon monoxide (CO); nitrogen oxides (NO(X)); ozone (O(3)); particulate mat...

BACKGROUND Industrial swine operations emit odorant chemicals including ammonia, hydrogen sulfide (H2S), and volatile organic compounds. Malodor and pollutant concentrations have been associated with self-reported stress and altered mood in prior studies. OBJECTIVES We conducted a repeated-measures study of air pollution, stress, and blood pressure in neighbors of swine operations. METHODS ...