Abstract
This paper aims to interpret and to use within a statistical analysis the concentration profiles of the main air pollutants – i.e., nitrogen oxides (NOx), sulfur dioxide (SO2), carbon monoxide (CO) and suspended particulate matter (PM10) – results recorded during the first half of 2021 by two air quality monitoring stations in Craiova, which is an important metropolitan area in Southern Romania. Another goal of the paper is finding the best numerical diffusion model to fit the recorded values for PM10, as this pollutant seems to be the major problem, because its daily average is often higher than the European Union threshold, meaning that imperative measures have to be taken for reducing particulate matter concentration in Craiova (like in other major Romanian metropolitan areas), in order for Romania to get the exoneration regarding air pollution from the European Union and, of course, for its citizens to improve the quality of their lives.
Highlights
IntroductionA large number of epidemiological studies conducted around the world lead to associations between air pollutants and excesses in daily mortality and morbidity [1,2,3,4]
As air pollution represents such a stringent problem of the modern society, the current work consists in gathering and mathematically modeling a series of results which were obtained in Craiova, during the first half of 2021, picturing the evolution of atmospheric pollutants’ concentration
The log-normal distribution is applied in order to describe the observed distribution of PM10 levels in Craiova city – capital of Dolj County
Summary
A large number of epidemiological studies conducted around the world lead to associations between air pollutants and excesses in daily mortality and morbidity [1,2,3,4]. To achieve an increasing air quality in the urban agglomeration of Craiova (which is obviously a fundamental aspect in increasing life quality), several measures have to be taken for reducing the concentration of particles found in suspension in the atmosphere and the concentrations of the gaseous pollutants that are present in the inspired air. Air quality has been proven to affect our health, as living in a polluted environment signifies a worse quality of life. Urban populations are more exposed to the air pollution (especially the children and the elderly) and, people who are already ill are vulnerable. It is known that physical and mental wellbeing is differently disturbed by the air pollution that we are exposed to [6]. The most usual organs and systems that are in risk to be damaged are: the respiratory and cardiovascular system; the eyes; nose and throat; reproductive organs; the liver; the spleen; the blood and, the nervous system
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