Toxicity of arsenic pentoxide to Ampullaria luzonica

Date of Publication

1995

Document Type

Bachelor's Thesis

Degree Name

Bachelor of Science in Biology

College

College of Science

Department/Unit

Biology

Abstract/Summary

Ampularia luzonica were exposed for ninety six hours to different concentratiopns ( 20 - 150 mg/L ) of arsenic pentoxide. This was done to determine the mortality rate of Ampullaria luzonica to arsenic pentoxide and to estimate the median lethal concentration (LC50) of arsenic pentoxide on the snail. A hundred percent mortality rate was obtained from concentrations 100 mg/L, 120 mg/L and 150 mg/L. For 35 mg/L and 40 mg/L 45.6 percent and 54.1 percent mortality rates were obtained. 63.3 percent and 71.8 percent mortality rates were noted for 45 mg/L and 50 mg/L respectively. On the other hand, 79.6 percent mortality rate was observed from 55 mg/L.The median lethal concentration (LC50) of arsenic pentoxide was found to be 36.4 mg/L. It was obtained using linear regression.

Abstract Format

html

Language

English

Format

Print

Accession Number

TU06916

Shelf Location

Archives, The Learning Commons, 12F, Henry Sy Sr. Hall

Physical Description

39 leaves

Keywords

Arsenic--Toxicology; Snails

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