نتایج جستجو برای: environmental emission
تعداد نتایج: 538334 فیلتر نتایج به سال:
Firms are generally reluctant to reveal their true marginal costs for environmental abatement. Depending upon the policy instruments used by the regulator, firms may even seek to misrepresent their abatement costs in order to gain a competitive advantage. This paper shows how the regulator can induce truth revealing behavior by firms in the emission permit market. The aggregate optimal emission...
The current Good Manufacturing Practice (cGMP) and effluent emission (use and disposal) regulations of the U.S. Food and Drug Administration (FDA) and manufacturing effluent discharge and emission regulations of the U.S. Environmental Protection Agency (U.S. EPA) require contained manufacture, use, and disposal of pharmaceuticals with the goal of minimizing the release of pharmaceutical chemica...
The quality of emission factors is typically described using data quality ratings. Such ratings are qualitative and provide no indication of the precision of the emission factor for an average emission source, nor of the variability in emissions from one source to another within a category. Advances in methodology and computing power enable the application of a quantitative approach to characte...
Several types of regulations limit the amount of different emissions that a firm may create from its production processes. Depending on the emission, these regulations could include threshold values, penalties and taxes, and/or emission allowances that can be traded. However, many firms try to comply with these regulations without a systematic plan, often leading not only to emission violations...
Background and aims Today, the environmental pollution caused by fire-proof break producing factories is one of the critical and challenging issues in our country. Aerosols emission concentration of the factory stacks and determining of bag filters efficiency were aims of this study Methods In this research, the concentration of emitting dust from 6 stacks related to Kaolin preparatio...
The large amount of volatile organic compound (VOC) emitted by vegetation modifies air quality contributing to both tropospheric ozone and secondary organic aerosol production. A better understanding of the factors controlling VOC emissions by vegetation is mandatory in order to improve emission estimates derived from tropospheric chemistry models. Although the Mediterranean shrublands are part...
Economic dispatch (ED) is one of the most important issues in power system operation. The main objective of ED is to determine each power plant generation in order to minimize the total operation cost while satisfying demand and generation constraints. In recent years, due to increasing environmental concerns and regarding to the role of pollution produced by fossil-fuelled power plants, enviro...
Catalyst emissions from fluidising catalytic cracking units have the potential to impact significantly on the environmental compliance of oil refineries. Traditionally it has been assumed that gas velocity and fine particles significantly impact on emission levels. Through the use of a simple fluidised bed model, sensitivity analysis was conducted to identify the key operating parameters that i...
We analyze a dynamic multi-pollutant problem where abatement costs of several pollutants are not separable. The pollutants can be either technological substitutes or complements. Environmental damage is induced by the stock of accumulated pollution. We find that optimal emission paths are qualitatively different for substitutes and complements. We derive general properties governing optimal emi...
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