Small guide establishing eco-toxicity of soil and water (In Romanian)

Soil and water ecotoxicity is one of the major concerns with important implications for human and animal life’s quality. Consequently, there were appeared many methods to determine the level of environmental pollution, which in the last decade have seen a tremendous development, with the implementation of European and national legislations. The present review is intended to familiarize readers with some indicators of water pollution and soil testing; testing that zebra fish and earthworm bodies recognized as viable and sensitive indicators of pollution.It describes the testing methodology known: acute and chronic toxicity on fish; determining pollution by using earthworms (OECD Protocol 207). In addition, analytical methodology chapter establishing eco-toxicity is summarized soil and gas chromatography coupled with mass spectrometry (GC-MS) and applications in determining the degree of environmental pollution, and the last chapter is presented legislation manure management in the EU and Romanian legislation related

Small guide establishing eco-toxicity of soil and water (In Romanian)

Soil and water ecotoxicity is one of the major concerns with important implications for human and animal life's quality. Consequently, there were appeared many methods to determine the level of environmental pollution, which in the last decade have seen a tremendous development, with the implementation of European and national legislations. The present review is intended to familiarize readers with some indicators of water pollution and soil testing; testing that zebra fish and earthworm bodies recognized as viable and sensitive indicators of pollution.It describes the testing methodology known: acute and chronic toxicity on fish; determining pollution by using earthworms (OECD Protocol 207). In addition, analytical methodology chapter establishing eco-toxicity is summarized soil and gas chromatography coupled with mass spectrometry (GC-MS) and applications in determining the degree of environmental pollution, and the last chapter is presented legislation manure management in the EU and Romanian legislation related

The thyroid and the thyroid hormones (in Romanian)

The thyroid gland is located in the cervical fascia were it is divided in two lateral lobes, right and left, disposed on both sides of the trachea, and unlike other vertebrates, the cat does not have an isthmus that connects the two lobes. The main products of secretion of the thyroid gland are represented by thyroxine [T4] and 3,5,3 'triiodothyronine [T3]. To these are added other hormones resulted from the deiodination of the principle hormones. This process is catalized by the D1, D2 and D3 deiodinase resulting 3,3,5' triiodothyronine [rT3], 3,5-T2, 3,3’-T2 or 3’,5’-T2 which by further deiodination will form 3-3'-T1 and T1. To reach this deiodination must be followed certain steps in the hormon synthesis transport path, and it is important the present of the carrier protein. Once inside the tissue, the concentration of each hormone will vary depending on the binding site and the metabolic processes that will be followed

Introducing of the methods of pollutants detecting and species used as experiment organisms in testing laboratories (ro)

Zebrafish are vertebrate animals often used in research for wastewaters, environment chemicals, cancer and diabetes drugs due to their speed and ease for handling and obtaining test results. Organisms capacity to detect and avoid contaminated soils reveals soils stressor potential and has an ecological relevance indepted with its direct relationship to soil biodiversity and it’s quality as a habitat for the organism. Soil pollution tests were accomplished on arthropods (Collembola), earthworms, oligochaete worms (Enchytraeidae), this being behavior modification tests, observing which species avoids contaminated soils and if response intensity depends on contamination degree. Using Daphnia sp. for testing it’s possible because of their sensibility to an amount of aquatic pollutants and also for their small sizes involving a use of small volumes of test substance and water for dilution

Pollutants impact bioassay from waters and soils in Banat region

Analyses of water and soil samples by chemical methods identified the quantities of chlorides, nitrates and phosphates by comparison with the maximum limits of law. Acute toxicity tests on zebra fish embryos is an alternative test of water samples around swine farms in Banat region, because embryos are not subject to animal protection legislation during experiments. The use of Eisenia fetida earthworms as pollution indicators allowed assessment of avoidance behavior of potentially polluting soils collected from different distances from farms