Pollution load contribution of San Juan and San Cristobal Rivers to Laguna de Bay [Philippines]

Two rivers in Calamba [Laguna, Philippines] namely, San Juan and San Cristobal, were studied from May 1987 to April 1990. Regular monthly sampling was conducted. Parameters such as pH, temperature, dissolved oxygen, conductivity, total solids, total suspended solids, chemical oxygen demand, hardness...

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Bibliographic Details
Published inPhilippine journal of science Vol. 121; no. 3
Main Authors Madamba, L.S.F, Galapate, R.P, Decena, A.M, Samaniego, N.A. (Philippines Univ., Los Banos, College, Laguna (Philippines))
Format Journal Article
LanguageEnglish
Published 01.09.1992
Subjects
CALIDAD DEL AGUA
CARGA CONTAMINANTE
CHARGE POLLUANTE
COURS D'EAU
CURSOS DE AGUA
FILIPINAS
MEDICION
MESURE
PHILIPPINES
POLLUTION DE L'EAU
POLUCION DEL AGUA
QUALITE DE L'EAU
TEMPERATURA
TEMPERATURE
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Summary:Two rivers in Calamba [Laguna, Philippines] namely, San Juan and San Cristobal, were studied from May 1987 to April 1990. Regular monthly sampling was conducted. Parameters such as pH, temperature, dissolved oxygen, conductivity, total solids, total suspended solids, chemical oxygen demand, hardness, chloride, turbidity, phosphorus fractions, and nitrogen fractions were used to evaluate the water quality of the rivers before they discharge to Laguna de Bay. The results showed that runoff from agricultural watersheds contribute to the rise in P fractions, N fractions, and total suspended solids. The presence of effluents from the industries along both rivers as well as domestic sewage also significantly contribute to the deterioration of the water quality of the rivers
Bibliography:T01
9311165
ISSN:0031-7683