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Determination of polycyclic aromatic hydrocarbons and their derivatives in atmospheric particulate matter collected in the Amazon Rainforest

Grant number: 15/13647-8
Support Opportunities:Scholarships in Brazil - Scientific Initiation
Effective date (Start): September 01, 2015
Effective date (End): August 31, 2016
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
Principal Investigator:Pérola de Castro Vasconcellos
Grantee:Henrique Pereira Do Carmo de Carvalho
Host Institution: Instituto de Química (IQ). Universidade de São Paulo (USP). São Paulo , SP, Brazil


The Amazon forest has been affected by deforestation and emissions from biomass burning. The city of Porto Velho is located in the northern state of Rondônia and is in the area of deforestation in the Brazilian Amazon. This study aims to identify and quantify the polycyclic aromatic hydrocarbons (PAH) and their derivatives present in particulate matter samples less than 10 micrometres diameter (PM10). The samples were collected in periods of intense and moderate burning, in quartz fiber filters using a high volume sampler (Hi-Vol). The extraction of organic material will be made by ultrasonic bath. Then, the organic extract will be fractionated. Fractions of PAH, nitro and oxy-PAH will be identified and quantified by gas chromatography-mass spectrometry. These results will provide an interesting data for the chemical characterization of pollutants emitted by biomass burning in the Amazon region. (AU)

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