Abstract
The extensive and intensive use of many pesticides in agriculture has caused environmental pollution. Chemicals directly added to the soil, whether in greenhouses or in open fields can reach ground water, rivers and lakes by run off, where significant amounts may directly or indirectly affect human health. Therefore, interest has grown to establish appropriate, fast and inexpensive methods to assess the environmental impacts of chemicals, including pesticides, in soil. Soil organisms are important for soil fertility, and sustainability of soil ecosystems can be disrupted by soil toxicity. The main aim of this study is to establish a novel and convenient assay to investigate and quantify soil toxicity.
Highlights
The monitoring of pollutants and other chemical residues in the environment is an important part of environmental protection
The results are shown in figure 1 and show that soil samples eluted after treatment with either 300ppm or 1200ppm oxamyl in water produced a significant inhibition of pharyngeal pumping compared with control samples treated with water
The experiments here were designed to test the content of soil pore water eluted from soil samples collected from glasshouses in Saudi Arabia to establish whether the C.elegans pharyngeal pumping assay is a useful system to quantify the presence of environmental pollution due to pesticide application
Summary
The monitoring of pollutants and other chemical residues in the environment is an important part of environmental protection Due to their inherently toxic nature there is a public perception that pesticides pose a particular threat to the environment and monitoring their levels is an important part of environmental monitoring. The methods are laid down as international standards regulated by the International Standards Organization (ISO) [2] These methods are accurate and precise they require a significant investment in equipment and trained personnel. It is not always clear how they relate to toxic effects on organisms, biomarkers have been extensively used to assess environmental pollution. A full review of this subject is beyond the scope of this research topic; a recent review advocates the use of Daphnia as part of routine environmental risk assessment of plant protection products [3]
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