Evaluation of heavy metals and ecological risk factors in agricultural industrial (Sago) soil of Attur, Salem District, South India

IJEP 43(6): 512-523 : Vol. 43 Issue. 6 (June 2023)

Ramesh Kumar K.1,2, C. Manivannan3 and Anbazhagan V.1*

1. Vinayaka Mission’s Research Foundation (Deemed to be University), Vinayaka Mission’s Kirupananda Variyar Arts and Science College, Salem, Tamil Nadu – 636 308, India
2. District Institute of Education and Training, Uthamacholopuram, Salem, Tamil Nadu – 636 010, India
3. Bannari Amman Institute of Technology, Photonics Laboratory, Department of Chemistry, Erode, Tamil Nadu – 638 401, India


Environmental pollution is one of the most important current concerns for human daily life. The present study aims to evaluate the heavy metals and ecological risk factors of agricultural soil profile in Attur taluk, Tamil Nadu, India using geochemical methods. Attur region has become a famous place for tapioca based industries (sago industries). These industries release large volumes of heavy metal wastes into the adjoining agricultural lands. In this study 18 soil samples were collected for physico-chemical and heavy metal analysis to assess the ecological risk estimation. The level of pollution in the study area was assessed using ecological risk factors, such as contamination factor (CF), pollution load index (PLI) and geo-accumulation index (Igeo). The results indicated that study areas’ samples numbered 4 (Karumantur), 13 (Valayampathy) and 17 (Karadipatti) are contaminated which might be due to the continuous release of heavy metals of arsenic and copper containing sago industrial effluent into the soil. Soil management is needed for the study area to maintain sustainable environment.


Soil, agricultural land, heavy metals, ecological risk factors, Attur, Sago industries, South India


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