Alex Araújo, Henrique Silva

Threat to Rio Branco, Boa Vista/RR, by organophosphorus pesticides

Analysis of physico-chemical parameters and an investigation of the interference of organophosphates with those parameters

• Broschiertes Buch

Produktbeschreibung

The use of pesticides used in the last decades has been growing in geometric progressions, especially the practice of applying these compounds, which today is considered the most widely used agrotoxin in the cultivation of crops, despite being of rapid disintegration, even reaching the groundwater tables of the region, due to soil leaching. The use of methyl parathion, mevinfós, cyanofós were determined. The determination of these organophosphates were found using the concentration through solid phase extraction (SPE) and then injected into a mass-coupled gas chromatograph (CGMS). The physicochemical parameters present worrying indexes, although they are not in catastrophic levels they present numbers that call our attention, to determine the temperature, pH, salinity, electrical conductivity, dissolved oxygen were determined using a multiparameter probe and checked with oximeter, pHmeter, and a conductivimeter, while the color was used the NESSLER 200, and the turbidity an AT 2kturbidimeter.

Produktdetails

• Verlag: Wydawnictwo Bezkresy Wiedzy
• Seitenzahl: 80
• Erscheinungstermin: 29. Juli 2020
• Englisch
• Abmessung: 220mm x 150mm x 5mm
• Gewicht: 137g
• ISBN-13: 9786200951922
• ISBN-10: 6200951926
• Artikelnr.: 59900225

Autorenporträt

Doutorando na área de Bioprospecção, licenciado em Química, Especialista em Libras e Mestre em Química. Professor de Educação Básica, na rede estadual de Roraima. Pai das perfeições Aléxia, Alessa, Alex Filho e Eva Maria.