نتایج جستجو برای: pollutant emission
تعداد نتایج: 197034 فیلتر نتایج به سال:
Abstract. The inaccuracy of anthropogenic emission inventories on a high-resolution scale due to insufficient basic data is one the major reasons for deviation between air quality model and observation results. A bottom-up approach, which typical inventory estimation method, requires lot human labor material resources, whereas top-down approach focuses individual pollutants that can be measured...
The atmospheric pollution is one of the most important impacts of vehicular tratlc; air pollution levels and the over-saturated traffic conditions constitute severe problems in many cities. A large number of models, with different characteristics, has been proposed in order to simulate tratlic flow and related pollutant emissions. In this paper, a fuel consumption and pollutant emission model i...
Using real options, we analyze the timing of implementing emission limits for a decaying pollutant when random environmental effects affect its stock. Two types of irreversibility are present: the first type results from long-term environmental damage, and the second from sunk costs in pollution abatement. We assume that social damage from pollution is a power function of the stock of pollutant...
This paper studies the firm-level relationship among productivity, decision to export, and environmental performance. The emerging theoretical and empirical literature suggests that trade has an important role in determining firms’ heterogeneity: increased openness to trade induces a reallocation effect that increases within-industry efficiency, thereby linking firms’ decisions to export and ad...
For the performance evaluation of coal enterprises energy conservation and reduction of pollutant emission, a new attitude index group decision-making method is proposed based on trapezoidal fuzzy numbers. Under the condition in which the information of attributes weights and decision maker weights is entirely, the attitude index is introduced firstly. By solving the fuzzy object programming fo...
Novel pollutant control equipment, which were called integrated pollutant control equipment, consisted of bag filters and activated carbon (AC) absorbers. The AC absorbers were put forward to absorb the additional pollutants between the old and new emission standards to satisfy Chinese emission standards. The absorbers could be fixed (mobile) bed, annular column, or fluidized bed. The numerical...
Background and Objective: Among greenhouse gases, CO2 has a crucial role; thus, its impact on health indicators such as life expectancy is of great importance. Hence, one of the most important challenges in the health sector has been the impact of the environmental pollutants emission, namely CO2, on life expectancy of men and women. Materials and Methods: This is a descriptive-analytical and ...
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