Journal Article

Assessment of water quality in areas of ecological economic zoning of the Guapiaçu-Macacu basin, RJ, Brazil

Priscilla da Silva Pereira, Jaime Lopes da Mota Oliveira, Darcilio Fernandes Baptista, Lia Amorim Chaves Fernandes

2012

Overview

Aquatic ecosystems have often been significantly altered by multiple impacts. The Guapiaçu-Macacu Hydrographic Complex is an important basin in Rio de Janeiro characterized by distinct ecological zones that make up an Ecological Economic Zoning. This research evaluated ecological upright in segments of this Complex located in Wildlife Conservation Zone (WCZ) and the Agricultural Use Zone (AUZ) using the Protocol Visual Assessment (PVA) and physical, chemicals and microbiology methods. The results showed a significant difference between the points of lowest contamination degree in WCZ and stretches with a greater impact degree in AUZ. The PVA was more sensible than the conventional parameters in the resolution between segments impacted environmentally and impacted middle located in AUZ. This type of evaluation proved to be more effective in environmental monitoring the water quality for watersheds that have their Ecological Economic Zoning Plan. Therefore, the use of physical, chemical and microbiological methods must be complemented by the PVA.

• Publisher: Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHi)
• Subject: Assessment of water quality / ecological economic zoning / protocol visual assessment