"Heavy metals and nutrient contents of some selected biota in Montalban River at Brgy. San Jose and Brgy. Balite"

Date

6-2001

Degree

Bachelor of Science in Chemistry

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Maxima E. Flavier

Co-adviser

Evelyn B. Rodriguez

Committee Member

Nerlissa P Concibido

Abstract

The heavy metals, total nitrogen and total phosphorus of some selected biota in Montalban river were determined to evaluate the extent of pollution load contributed by the human activities around the areas of Brgy. Balite and Brgy. San Jose. Samples of tilapia (Tilapia mosambicus), snail (Helix aspersa) and plants such as water lily (Eichhomia crassipes) and kangkong (Ipomoea aquatica) were obtained from the river while cogon (1mperala cylindrica), bakiskisan (Eleusine indica), and dukayang (Echinochloa colonum) were obtained from the riverbank. Among the biota, the highest percentage total nitrogen was obtained in the edible portions of tilapia while the lowest value was measured from cogon-1 gathered near the riverbank of Brgy. Balite. On the other hand, the highest value of total phosphorus was obtained from the inedible portions of tilapia while the lowest value was measured from cogon-2 gathered some distance away from the riverbank. The inedible portions of snail gave the highest concentration for the three metals: zinc, cadmium, and lead while copper is accumulated more in the edible portion of snail. On the other hand, the inedible portions of tilapia gave the lowest concentration of cadmium while zinc, copper, and lead were found to be lowest in cogon obtained a distance away from the riverbank. Results showed that zinc is the highly accumulated heavy metal among the other metals. The order of metal concentration in all samples were found to be Zn>Cu>Pb>Cd.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 2001 C4 L53

Document Type

Thesis

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