The objectives of this research are: To establish the LC50 of the heavy metals cadmium, copper, arsenic and mercury as well as a Cu/Cd mixture in a ratio equal to LC50 Cd/LC50 Cu, employing a chemically defined medium such as 'Aristol'; To improve procedures for heavy metal bioavailability studies in the field; To improve/develop test procedures using a chemically defined medium and 'food' in 28-day uptake studies; To analyze the ...
This toxicological research report addresses lethal concentrations of heavy metals in tissue of earthworms. We have presented the work in progress in the first interim report to improve 1) ecotoxicological test, 2) field procedures and 3) standardization of analysis. This second interim report deals mostly with toxicity tests because the point (3) is now in order and the work in field was impossible during the last dry season. Nevertheless, analysis ...
The objective of this phase of Toxicological research on Lethal Concentrations of Heavy Metals in Tissue of Earthworms is to improve both ecotoxicological test in a chemically defined medium and a procedure of bioavailability study in field. In this first period we worked on breeding stock of earthworms (species Eisenia fetida andrei) in decomposing manure heaps to increase them and make them grow. We also installed two chambers with thermostats ...
Reports by Author
