Chaturvedi,, Aaditya and Bhattacharjee, Santanu and Singh, Abhay Kumar (2021) A study on the interdependence of heavy metals while contributing to groundwater pollution index. Environmental Science and Pollution Research .

Full text not available from this repository. (Request a copy)

Abstract

The contribution of heavy metal to the groundwater pollution index (m-HPI) is dependent on other heavy metals present in it. This contribution may be synergistic or anti-synergistic (antagonistic) depending upon the constituent matrix. Both heavy metal type and its concentration are important. m-HPI, a variant of heavy metal pollution index in water, may be calibrated against USEPA hazard index (HI) using a generic multivariate non-linear regression (MVNLR) model. Excellent correlation may be obtained between HI and m-HPI through optimization of normalized weightage factors of constituent metals that contribute to m-HPI. MVNLR model was employed on groundwater samples of ten sites having different heavy metal matrix. The synergistic/antagonistic contribution of heavy metals to m-HPI was well discernible at each site. This study clearly showed that the individual contribution of a particular heavy metal to pollution index might be altered (enhanced or reduced) in the presence of other heavy metals. A calibrated MVNLR model was successfully used for predicting the hazard index (HI) of water samples.

Item Type:	Article
Uncontrolled Keywords:	Heavy metal Hazard index Water quality index Correlation Synergy
Subjects:	Envieronmental Management Group
Divisions:	UNSPECIFIED
Depositing User:	Mr. B. R. Panduranga
Date Deposited:	12 Mar 2021 07:15
Last Modified:	12 Mar 2021 07:15
URI:	http://cimfr.csircentral.net/id/eprint/2339

Actions (login required)

View Item