A method has been studied for the analysis of 9 POPs and 15 PAHs in mussel and fish liver from the Black Sea. The method was based on liquid-liquid extraction using n-hexane. The extracts were fractionated and cleaned up with a Florisil, respectively aluminium oxide and silica gel column. The concentrations of analites were determined by gas chromatography with electron capture detection (GC-ECD), respectively by gas chromatography with mass spectrometer

This paper deals to report original results concerning four metal accumulation factors in the Romanian Black Seacoast biota. Cd, Cr, Cu and Pb were determined in brown and green algae, mussels, crustaceans, fishes and also in water using flame atomic absorption spectrometry.

The aim of the paper is to investigate the pollution sources of Tabacarie Lake located in Constanta district Romania, by monitoring the quality parameters. Eight sampling sites were established around the lake and analyses were carried out twice on week, in July, 2005. Alkalinity, Chemical Oxygen Demand by potassium permanganate method (CODMn), Dissolved Oxygen (DO), Total and Calcium Hardness, Salinity, Sulfides, Cu, Cr and Fe were the monitored

The interest in toxicology increased continuously in the last years with the synthesis and use of different chemicals. In the environment, humans and other leaving organisms are exposed to support the increasing number of xenobiotics that are mainly present in drugs, pesticides, industrial chemicals and food or beverage additives. It is a fact that any compound coming into contact with biological systems will cause some perturbations in that system.

Black Sea’s pollution by organic and inorganic pollutants occurs frequently due to the fact that in the sea water there are discharged some waste waters (industrial or home originated) and surface waters with a high pollutants concentration. The conservation of surface waters quality in order to prevent and control the Black Sea coast pollution constitutes a problem of national, even international interest. In this purpose data were collected between

The sample pretreatment methods are constantly developing aiming to respond to the large variety of samples source and composition. For example, in order to preconcentrate toxic metals from liquid samples the most used methods are the extraction, based on extraction agents like chelates and ion-pairing are, used after the samples’ digestion. Organic pollutants have different ways for extraction and preconcentration depending on the structure, concentration

Soils are complex systems, in direct contact with plants and animals, surface waters and ground waters, where very complicated biotransformation processes of the pollutants occur. Soils characterization as one of the most challenging subject for researchers, no only the environmentalists, due to the complexity of this media, combined with the fact that land is used with so many and different purposes. Soil chemical composition, inorganic, organic

The heavy metals pollution of soils represents sometimes a serious concern regarding the earth’s health, and therefore studies about heavy metals removal from contaminated soils are of increased interest. The aim of this work was to study in situ Cd and Zn immobilization in three types of contaminated soils with synthetic calcium phosphate and also to present new results concerning the influence of EDTA on the extractability of Cd and Zn in both

The purpose of this paper is to present original results concerning concentrations of eight metals in soils adjacent to municipal waste deposits from Constanta County, Romania, during April-October 2006. The surface and depth soil solutions were obtained using aqua regia and the applied analytical technique for metal determination was flame atomic absorption spectrometry (FAAS). The mean measured values ranged as follows: Cd: 0.09 – 0.15 mg/kg

New original results concerning Ag, Cd, Cr, Cu, Ni and Pb accumulation factors in the Romanian Black Seacoast biota and sediment in 2003-2006 are reported. Metal were determined in green alga, mussels, shrimp, fishes and also in sediment and water using inductive coupled plasma - mass spectrometry (ICP-MS) technique.