Phytotoxic Effect of Landfill Leachate with Different Pollution Indexes on Common Bean

The leachate pollution index (LPI) represents a tool to assess the pollution potential of a leachate, on a scale from 5 to 100. However, the significance of the LPI number in terms of a particular phytotoxic effect has not been investigated. The aim of this work was to determine if the LPI is also a...

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Bibliographic Details
Published in:Water, air, and soil pollution air, and soil pollution, 2014-06, Vol.225 (6), p.1-7, Article 2002
Main Authors: Guerrero-Rodríguez, D, Sánchez-Yáñez, J. M, Buenrostro-Delgado, O, Márquez-Benavides, L
Format: Article
Language:English
Subjects:
Acids
Agricultural production
Atmospheric Protection/Air Quality Control/Air Pollution
Beans
Chemical oxygen demand
Climate Change/Climate Change Impacts
Disinfection & disinfectants
Earth and Environmental Science
Environment
Environmental monitoring
grain yield
Heavy metals
Hydrogeology
Laboratories
Landfill
Landfills
Leachates
Leaching
Nitrogen
Phaseolus vulgaris
Phytotoxicity
Pollution
Pollution index
Precipitation
Refuse and refuse disposal
Seeds
Soil Science & Conservation
Studies
Waste disposal sites
Water Quality/Water Pollution
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Summary:The leachate pollution index (LPI) represents a tool to assess the pollution potential of a leachate, on a scale from 5 to 100. However, the significance of the LPI number in terms of a particular phytotoxic effect has not been investigated. The aim of this work was to determine if the LPI is also an appropriate tool in relation to the biological significance of a phytotoxic assay using the common bean plant (Phaseolus vulgaris L.) in a greenhouse scale test. Two different leachates were used in this study: one from Guanajuato (GUL) and another from Toluca (TOL); the calculated LPIs were 34.8 and 18.4, respectively. Leachate dilutions of 25, 50, and 75 % were used; undiluted leachate (100 %) was also used, and an enriched mineral solution was used as the control. Our findings indicate that when using concentrated leachate, the LPI was not directly related to the recorded phytotoxic effect (grain yield was significantly reduced by TOL leachate); however, when only using diluted leachate (25 %), the LPI was directly related to the effect. These findings suggest that for diluted leachates, leachates with higher LPIs are likely to exert a more detrimental effect on the common bean than leachates with lower LPIs.
ISSN:0049-6979
1573-2932
DOI:10.1007/s11270-014-2002-1