Caracterização de MP2,5 e MP10 em Ar Ambiente de Estacionamento Fechado de Estabelecimento Comercial em Londrina-Paraná

Orbital: The Electronic Journal of Chemistry

Jurandir Pereira Pinto¹  Fabio Cal Sabino¹  Maria Cristina Solci¹  Ismael Rodrigues Amado¹  Leila Droprinchinski Martins² 

[1] Universidade Estadual de Londrina;Universidade Federal Tecnológica do Paraná;

关键词: airborne particulate matter;    inhalable particles;    vehicular emissions;   

DOI  :  10.17807/orbital.v6i2.566

来源: DOAJ

【 摘 要 】

In order to investigate the concentration profile of PM in different aerodynamic sizes of the atmosphere threatened by light duty traffic, samples of PM (PM2.5 and PM10) were collected in a closed business parking lot, where only light duty vehicles move at low speed. Four sampling periods (in June and December of 2011 and 2012) were performed. Size-segregated PM samples were collected using: i) cyclone (URG) to PM2.5; and ii) Low-Vol to PM10. Filters were weighed using a microbalance with sensitivity of 1 μg (AX 26, Mettler- Toledo Inc., Highstown, NJ). The averages concentrations for PM2.5 and PM10 obtained in June 2011 was 41.9 ± 10.1 mg m^-3 and 56.4 ± 12.6 mg m^-3, respectively. For December 2011, average concentrations were 30.6 ± 11.7 mg m^-3 for PM2.5 and 52.8 ± 12.7 mg m^-3 for PM10. In June 2012 the average values were 39.6 ± 9.1 mg m^-3 for PM2.5 and 71.4 ± 10.9 mg m^-3 for PM10. In December 2012, the average concentrations were 21.3 ± 7.2 mg m^-3 for PM2.5 and 49.9 ± 10.6 mg m^-3 for PM10. The PM2.5/PM10 ratios with values ​​between 0.42 and 0.75 show the variability of the emissions of the Brazilian light duty fleet and contribution of fugitive emissions

【 授权许可】

Unknown