Variación temporal y espacial de la calidad de las aguas superficiales en la subcuenca del río Virilla (Costa Rica) entre 2006 y 2010

Abstract

In this work, we con-sidered data of 25 water quality variables collected between January 2006 to December 2010 at 64 moni-toring sites along the Viri-lla River Subbasin in Costa Rica. Factor analysis iden-  ‡      -tion sources that explained 80.9% of the total variance in LP, two potential pollu-tion sources that explained 77.1% of the total variance in MP, and two potential pollution sources that ex-plained 67.8% of the total variance in HP. Most wa-ter quality variables were   $  pollution due to industrial wastewater, agricultural activities and urban runoff.