Efeitos dos escoamentos urbanos e rurais na qualidade das águas do córrego verruga em vitória da conquista - Bahia, Brasil Effects of the urban and rural drainages in the quality of waters of verruga stream in vitória da conquista - Bahia, Brazil

• Main Authors: Maria Lúcia Pires dos Santos, José Soares dos Santos, Jarbas Rodrigues dos Santos, Leandra Brito de Oliveira
• Format: Article
• Language: English
• Published: Sociedade Brasileira de Química 2008-01-01
• Series: Química Nova
• Subjects: principal component analysis; Verruga Stream; urban activities
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422008000800016

<abstract language="eng">This study examined the spatial and temporal variations of 13 physico-chemical parameters in water and sediment samples collected along the rural and urban section of Verruga Stream. The metal concentrations were determined by FAAS. The conductivity and the concentration of Na+, Cl-, and Ca2+ showed the largest variations in the urban area demonstrating that these parameters are appropriate indicators of urban contamination. The application of cluster and principal component analysis showed that the Cd2+ and Mn2+ are associated with the use of fertilizers in the rural area.