Water quality assessment of groundwater in Barangay Niugan, Cabuyao, Laguna using selected chemical parameters

Date

3-1994

Degree

Bachelor of Science in Chemistry

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Nieva T. Librojo-Basilio

Abstract

The quality of groundwater in Barangay Niugan Cabuyao, Laguna was evaluated for three sampling months (once every two months) as a source of drinking water. The different chemical parameters used were pH, chloride, total dissolved solids, total hardness, sulfate, nitrate-N, presence of the heavy metal as lead and major cations such as sodium, potassium, magnesium and calcium. The values of pH ranged from 7.10 to 7.90. Total dissolved solids gave values in the range of 240 to 1482 ppm. Total hardness was observed to be in the range of 124.80 to 338.52 ppm. The values of sulfate ranged from 6.43 to 84.02ppmhloride concentrations gave values in the range of 109.09 to 289.91 ppm. For nitrate-N concentrations, values obtained were 0.11 to 5.20 ppm. Most values obtained from the samples fall within the permissible levels for drinking water as set by the

Bureau of Food and Drugs. All values fall within the permissible levels for total hardness and sulfate concentrations. For total dissolved solids, values obtained on the sample sites were in the permissible levels exc9pt for site # 1 on the first sampling time and 41 4 for the second sampling time. The concentrations of soluble salts ranged from 48.76 to 159.79 ppm for sodium; 85.29 to 131.50 for potassium; 0.98 to 151.09 ppm for calcium; and 7.02 to 48.92 ppm for magnesium. The heavy metal lead was undetected. For calcium, all samples were within the permissible level of 75 ppm, except for samples from sites # 7 and # 8 which exceeded such level by 73.2 % and 96.5 % , respectively. Statistical analysis of collected data showed significant variances due to sampling sites and sampling time at 1% level.

Language

Filipino

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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