Pollution Research Paper

Vol 38, Issue 2, 2019; Page No.( 491-494)

AN INTEGRATED APPROACH FOR RISK ASSESSMENT OF GROUNDWATER CONTAMINATION USING LYSIMETRIC STUDIES

ARJUN SURESH, TANU JINDAL AND SHAKEEL AHMAD KHAN

Abstract

Groundwater is one of the most important water resources which are always impacted by industry,agriculture, mining, and other human activities. Risk assessment of groundwater contamination is an effective way to protect groundwater resources. Lack of Knowledge, the inability of measurement or calculation, potential differences between assessment of some factors and the irtrue value are causing uncertainty in risk assessment. A new advanced technique of lysimeter experiments has been developed which involves systematic methodology to combine both quantitative and qualitative input of risk factors. Lysimeters are designed for scientific studies of the fate and movement of water, pesticides, salts/nutrients, trace elements, heavy metals, and various other xenobiotics. General leaching study has been carried out to develop the methodologyto monitor the fate and mobility of contaminants and to evaluate solute transport models. The experiments are repeated to understand the reproducibility of the data and most of the lysimeter results agreed with previous experiments. Recommendations are made for further optimizing the design of future leaching studies and to promote this method in regulatory decision making for the protection of groundwater.

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