ECOLOGICAL RISK ASSESSMENT OF A TROPICAL LAKE SYSTEM

Authors

  • K. Swarnalatha
  • J. Letha Department of Technical education
  • S. Ayoob TKM College of Engineering, Kollam

DOI:

https://doi.org/10.4090/juee.2013.v7n2.323-329

Keywords:

Contamination factor, Degree of contamination, Ecological risk assessment, Heavy

Abstract

Risk analysis of urban aquatic systems due to heavy metals turns significant due to their peculiar properties viz. persistence, non-degradability, toxicity, and accumulation. Akkulam Veli (AV), an urban tropical lake in south India is subjected to various environmental stresses due to multiple waste discharge, sand mining, developmental activities, tourism related activities etc. Hence, a comprehensive approach is adopted for risk assessment using modified degree of contamination factor, toxicity units based on numerical sediment quality guidelines (SQGs), and potentialecological risk indices. The study revealed the presence of toxic metals such as Cr,Cd, Pb and As and the lake is rated under ‘low ecological risk’ category.

Downloads

Download data is not yet available.

Author Biographies

K. Swarnalatha

Department of Civil Engineering Assosciate Professor

J. Letha, Department of Technical education

Director

Downloads

Published

2013-12-08

Issue

Vol 7, N. 2 (2013)

Section

Articles

License

All Rights Reserved. All items (including but not limited to abstracts, artwork, poetry and articles) published by this journal are copyright of the original authors. To use articles beyond reasonable academic or journalistic norms, you must first gain permission from the individual authors. To reproduce any artwork, poetry, fiction or other artistic forms contained in this journal in any form you must first gain permission from the artist. All authors and artists are responsible for the content of their work, including proper citation, attribution and usage permissions.