Temporal and spatial variation in the quality of surface water in the subwatershed of the Virilla river (Costa Rica) between 2006 and 2010

In this work, we considered data of 25 water quality variables collected between January 2006 to December 2010 at 64 monitoring sites along the Virilla River Subbasin in Costa Rica. Factor analysis identified two potential pollution sources that explained 80.9% of the total variance in LP, two poten...

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Bibliographic Details
Authors: Herrera, Jorge, Rodríguez, Susana, Rojas, José F., Herrera, Éricka, Chaves, María
Format: article
Status:Published version
Publication Date:2013
Country:Costa Rica
Institution:Universidad Nacional de Costa Rica
Repository:Portal de Revistas UNA
Language:Spanish
OAI Identifier:oai:ojs.www.una.ac.cr:article/7302
Online Access:https://www.revistas.una.ac.cr/index.php/ambientales/article/view/7302
Access Level:Open access
Keyword:Costa Rica
source apportionment
water pollution
Virilla Subbasin
Contaminación de agua
identificación de fuentes
subcuenca del río Virilla
Description
Summary:In this work, we considered data of 25 water quality variables collected between January 2006 to December 2010 at 64 monitoring sites along the Virilla River Subbasin in Costa Rica. Factor analysis identified two potential pollution sources that explained 80.9% of the total variance in LP, two potential pollution sources that explained 77.1% of the total variance in MP, and two potential pollution sources that explained 67.8% of the total variance in HP. Most water quality variables were influenced primarily by pollution due to industrial wastewater, agricultural activities and urban runoff.