منابع مشابه
Chaos in Air Pollutant Concentration (APC) Time Series
Three chaotic indicators, namely the correlation dimension, the Lyapunov exponent, and the Kolmogorov entropy, are estimated for one-year long hourly average NO (nitrogen monoxide), CO (carbon monoxide), SO2 (sulfur dioxide), PM10 (particles with an aerodynamic diameter of approximately 10 m or less), and NO2 (nitrogen dioxide) concentration to examine the possible chaotic characteristics in th...
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There are many substances in the air which may impair the health of plants and animals, including humans, that arise both from natural processes and human activity. Nitrogen dioxide NO2 and particulate matter (PM10, PM2.5) emissions constitute a major concern in urban areas pollution. The state of the air is, in fact, an important factor in the quality of life in the cities, since it affects th...
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Sorption-desorption kinetics play a major role in transport and bioavailability of pollutants in soils. Contaminant concentration is a potentially important factor controlling kinetics. A previous paper dealt with the effect of solute concentration on fractional uptake rates of phenanthrene and pyrene from a finite aqueous source. In this study we determined the effect of initial phenanthrene s...
متن کاملAnalysis of Criteria Air Pollutant Trends in Three Mexican Metropolitan Areas
Data from the annual, seasonal, and hourly behavior of the criteria air pollutants CO, NO2, SO2, O3, and PM10 in three Mexican metropolitan areas (the Mexico City Metropolitan Area (MCMA), Guadalajara Metropolitan Area (GMA), and Monterrey Metropolitan Area (MMA)) over the period 2000–2011 were analyzed; and compliance with Mexican air quality standards was evaluated, highlighting causes of spe...
متن کاملNumerical Analysis of Car Exhaust Pollutant Concentration in Underground Car Park
In our paper we would like to present the computational model and programmes which enable calculations of the concentration of pollutants in underground garage caused by assumed scenarios of cars motion for given parameters of building geometry and ventilation. The finite volume method (FVM) has been applied in order to discretise the differential equations. Both problems: velocities of air dis...
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ژورنال
عنوان ژورنال: Undergraduate Journal of Mathematical Modeling: One + Two
سال: 2013
ISSN: 2326-3652
DOI: 10.5038/2326-3652.1.1.2