DETERMINATION OF INDICES FOR RANKING THE POTENTIAL FOR HERBICIDES CONTAMINATION OF GROUNDWATER

Raphael, O. D. and Olosunde, W.A. and Fasanu, O.O. (2013) DETERMINATION OF INDICES FOR RANKING THE POTENTIAL FOR HERBICIDES CONTAMINATION OF GROUNDWATER. International Journal of Emerging Trends in Engineering and Development, 1 (3). pp. 684-699. ISSN 2249-6149

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Abstract

A soil-herbicides index for ranking the potential for herbicides contamination for groundwater known as Groundwater Contamination Potential (GCP) was evaluated by combining Soil Leaching Potential Index (SLPI) and Herbicide Leaching Potential Index (HLPI) using soil parameters and herbicides chemical characteristics data. Soils were rated based on their vulnerability to leaching of herbicides. Herbicides were rated based on their potential for moving through soil medium to groundwater by combining their physicochemical properties of Organic Partition Coefficient Koc, Half life T1/2, Application Method F. Soil properties considered were Organic Matter Content, Soil pH and Soil Textural class. These derived indices were used to rank 16 analyzed soil samples thereby allowing soil-herbicide combination to be ranked as being "Very low", "Low", "Moderate", "High" and "Very high Risks" in relation to their pollution potential to the groundwater. Consequently, the herbicide chemical information and knowledge of soil characteristics together with soil processes provide a means of guiding herbicides users in selecting herbicides least prone to leaching into groundwater and as a means of making environmentally correct decisions in herbicides selection and application.

Item Type:	Article
Subjects:	S Agriculture > S Agriculture (General)
Depositing User:	Mr DIGITAL CONTENT CREATOR LMU
Date Deposited:	31 Jan 2019 18:43
Last Modified:	18 Apr 2019 07:57
URI:	https://eprints.lmu.edu.ng/id/eprint/1915

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