STUDY OF THE MAXIMUM AND MINIMUM TOTAL COLUMNS OF NO2 ABOUT THE NORTHEAST REGION OF BRAZIL
Ciência E Natura
STUDY OF THE MAXIMUM AND MINIMUM TOTAL COLUMNS OF NO2 ABOUT THE NORTHEAST REGION OF BRAZIL
Autor Correspondente: Paulo Antunes Dias Pereira Calado | [email protected]
Palavras-chave: atmospheric pollution, photochemical smog,remote sensing
Resumos Cadastrados
Resumo Inglês:
Nitrogen dioxide (NO 2 ) is a gas emitted from anthropogenic sources directly into the atmosphere, with the most relevant of which is automotive vehicles. In this work the Erdas Imagine, GRADS and R software were used with data obtained from the NASA Geovanni platform (available at http://giovanni.gsfc.nasa.gov/giovanni/) from the Ozone Monitoring Instrument (OMI) sensor located on the satellite AURA. In the data series, the averages, minimum and maximum were performed in order to observe and identify the areas with the highest concentration of NO 2in the Northeast region and the behavior of the pollutant on the same region. Among the maximum values identified in each of the months nine occurred in Bahia including the maximum value of the whole series in July in the region near Roda Velha in Bahia and has a value of 4.88E + 15 1 / cm 2 , the state with the lowest occurrence of high concentration values is Rio Grande do Norte, but the lowest mean (2.06E + 15 1 / cm 2 ) and the lowest value (1.75E + 15 1 / cm 2 ) occur in the region close to city of São Luís (Maranhão) with 2.06E + 15 1 / cm 2 .
