Assessment of water quality in some selected barangays along Montalban River

Date

4-2002

Degree

Bachelor of Science in Chemistry

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Maxima E. Flavier

Abstract

Quito, Cherry LuAnn S., College of Arts and Sciences, University of the Philippines Los Banos, April 2002. Assessment of Water Quality in Some Selected Barangays Along Montalban River.

Adviser: Dr. Maxima E. Flavier

The status of the water quality of Montalban River was assessed and monitored from September 2000 to January 2001. The physical parameters such as conductivity, dissolved oxygen (DO), pH, and temperature were determined in ails. Other parameters such as total suspended solids (TSS), total dissolved solids (TDS), biological oxygen demand (BOD), chemical oxygen demand (COD), chloride, nitrate-nitrogen (NO3-N), total Kjeldahl nitrogen (TKN), and total phosphorus (TP) were analyzed in the laboratory.

The conductivity, DO, pH, TSS, TDS, and BOD levels were within the permissible limits set by DENR for 'Class C' water. The COD concentrations were within the permissible level (50 mg,/1.), except for Stations 3 and 4 in November. High NO3-N concentrations were observed in January exceeding the permissible level (10 mg/L). The TKN concentration range was 0.62-1.88 mg/L with a mean value of 1.49+1- 0.31mg/L. The phosphorus content (0.32+1-0.05 mg/L) was below the 0.40 mg/L permissible limit except for Stations 3 and 4 in September.

Statistical analyses (ANOVA and DMRT) indicated that variations in all the values did not vary significantly among the four sampling stations except for TDS. In addition, the mean values of COD, TKN, and TP did not vary significantly among the three sampling time.

The increasing population as well as socio-economic developments in the study areas greatly contributes to the pollution load of Montalban River. Hence, the river ecosystem will deteriorate continuously.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 2002 C4 Q58

Document Type

Thesis

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