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The OCU provides a method of analysis of urban pollution, including urban planning of cities

CORDOBA, 20 May. (EUROPA PRESS)

A research group at the University of Córdoba (UCO) proposed the multifractal analysis to study urban pollution, a technique that allows to describe

the influence of urban morphology on the spatial and temporal distribution of pollutants

, according to Andalucía Innova.

"We wanted to explore a different approach to a major social concerns, urban pollution, "said Francisco Jose Jimenez Hornero, UCO professor and coordinator of the project of excellence

'Multifractal Analysis of Urban pollution produced by road traffic

."

"The classical analysis and descriptive statistics are not able to fully respond to this issue and we must differentiate between neighborhoods with narrow streets and broad avenues and greater traffic density . After studying all possible options, the researchers chose the multifractal analysis as the most appropriate method to complement existing pollution analysis, "said the professor.

In his method of study, the group

took into account factors in the urban environment such as ozone and meteorological variables such as temperature, humidity, direction and speed wind and solar radiation, which directly affect their concentration

. "Both meteorological and chemical agents are studied in the production of this gas in large quantities, is injurious to health," Homer added Jimenez. Another object interest in this project is the spatial and temporal distribution of small particles suspended in air pollutant known as PM10, which are product, one of which is road traffic sources. The results obtained in this project

may be useful in checking the quality of data generated by urban pollution models

. These models provide scenarios about the city's expansion and growth of the number of cars and predicts spatial and temporal evolution of the contamination. The corresponding multifractal analysis would validate the results if confirmed pollutants manifest certain characteristics studied at different scales of analysis. To make this project has taken the city of Cordoba as pilot, but this proposal is applicable to other urban centers. The group aims to extrapolate the results to other cities, especially on the coast and at this time explores

Huelva, "featuring two new variables, the proximity of the sea and a leading chemical industry."

"Later is likely to focus too much on a city located in a mountainous area higher elevations to verify the differences between different geographical locations. But right now our primary objective is Córdoba "continues Jiménez Hornero. As noted, the influence of pollution in urban morphology is determined by the multifractal nature and character of certain neighborhoods of Cordoba. "From a historical point of view we know that the center of the city presents a very irregular geometry that determines the distribution of gaseous pollutants," said Jimenez, who adds that the situation is very different in the new City, developed in the mid-twentieth century, which have rules governing urban growth, with more or less regular neighborhoods. " "Our project, first, analyze the multifractal nature of pollution and secondly the results of the analysis associated with the way that urban pollution is distributed in the neighborhoods of Cordoba" he adds.

The project is in Ecuador of its development. "We still have two years of work ahead for those who continue with the analysis of environmental pollution and try to get into the issue of noise pollution. Will join the urban morphology using data from the city noise, parametric relationships of streets, width and type of elements that make up such as trees that buffer the effects of sound, "concludes Professor Jiménez Hornero.