%0 Journal Article
%T An¨¢lise de regress o m¨²ltipla das concentra  es de PM10 em fun  o de elementos meteorol¨®gicos para Porto Alegre, Estado do Rio Grande do Sul, em 2005 e 2006 = Multiple regression analysis of PM10 concentration concerning to meteorological elements for Porto Alegre, Rio Grande do Sul State, in 2005 and 2006
%A Angela Rad¨¹nz Lazzari
%A Maria Emilia Camargo
%A Rosana de Cassia de Souza Schneider
%J Acta Scientiarum : Technology
%D 2011
%I Editora da Universidade Estadual de Maring¨¢
%X O ar ¨¦ um meio eficiente de dispers o de poluentes atmosf¨¦ricos e seucomportamento depende dos movimentos atmosf¨¦ricos que ocorrem na troposfera. Em Porto Alegre, Estado do Rio Grande do Sul, h¨¢ um grande tr¨¢fego di¨¢rio e uma concentra  o de ind¨²strias que podem ser respons¨¢veis por emiss es atmosf¨¦ricas. Neste trabalho, estudou-se ocomportamento das concentra  es di¨¢rias de material particulado (PM10) desta cidade, considerando a influ¨ºncia dos elementos meteorol¨®gicos. A an¨¢lise dos dados foi realizada a partir de estat¨ªsticas descritivas, correla  o linear e regress o m¨²ltipla. Os dados foram fornecidos pela Funda  o Estadual de Prote  o Ambiental Henrique Luiz Roessler - RS (FEPAM) e pelo Instituto Nacional de Meteorologia (INMET). A partir das an¨¢lises p de-se verificar que: asconcentra  es do PM10, medidos diariamente ¨¤s 16h, n o ultrapassaram os padr es nacionais de qualidade do ar; os elementos meteorol¨®gicos que influenciam nas concentra  es do PM10 foram: a velocidade m¨¦dia di¨¢ria do vento e a radia  o m¨¦dia di¨¢ria com rela  es negativas; astemperaturas m¨¦dias di¨¢rias do ar e as dire  es, norte e noroeste, do vento, com rela  es positivas. As dire  es do vento que contribuem significativamente para diminuir as concentra  es nos locais medidos s o Leste e Sudeste. Air is an efficient means of atmospheric pollutants dispersal and its r behavior depends on the atmospheric movements that occur in the troposphere. In Porto Alegre, Rio Grande do Sul State, there is a large daily traffic and a concentration of industries that may be responsible for atmospheric emission. In the present work we studied the behavior of daily concentrations of particulate matter (PM10), in this city, considering the influence of meteorological variables. Dataanalysis was performed from descriptive statistics, linear correlation and multiple regressions. Data were provided by the State Foundation of Environmental Protection Henrique Luiz Roessler - RS and the National Institute of Meteorology. Based on the analysis it was possible to verify that: the concentration of PM10, measured every day at 4:00 p.m., did not exceed national standards for air quality; meteorological elements that influenced on the concentrations of PM10 were the daily average wind speed and average daily radiation with negative relations; the daily average temperature of the air and the directions, north and northwest of wind, with positive relations. Wind directions which contribute significantly to lower concentrations on the measured placesare east and southeast.
%K polui  o atmosf¨¦rica
%K PM10
%K estat¨ªstica
%K dire  o dos ventos
%K meteorologia
%K atmospheric pollution
%K PM10
%K statistics
%K wind direction
%K meteorology
%U periodicos.uem.br/ojs/index.php/ActaSciTechnol/article/view/9627/9627