The main purpose of the paper was to determine the influence of catchment management on the bottom sediments quality of small water reservoirs as well as to determine toxic metal content in rushes. Samples of bottom sediments were collected in winter 2013 year, form 4 sediment layers (0-5, 5-10, 10-20 and 20-30 cm) at three points along the body of water. The 48 samples were collected. Soil material was prepared according to the procedures used in soil science, the analysis was performed for the fraction with a particle diameter of less than 1 mm. Plant samples from single species aggregations were randomly cut from 5 to 10 locations of 20-50 m2 area. From these samples the average composite sample was prepared. The total content of such elements as Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, Zn was determined by atomic absorption spectrometry (using the Thermo Scientific iCE 3000 series spectrometer) after prior digestion in the mixture (5:1) of concentrated acids HNO3 (65%) and HClO4 (60%). Total Hg content was determined by the AMA 254 analyzer. Between the small water reservoirs adjacent to the areas where organic farming is used, and the reservoirs adjacent to the areas with mineral fertilization ...
During the conducted study, 18 objects of illegal dumping of waste were inventoried. All inventoried objects are located in the north-west part of the Barlinek municipality. Each found illegal landfill was measured with measuring tape and its length, width and height of the deposited waste was recorded. For each location, percentage content of waste deposited, as well as its surface area and volume were calculated. All located waste landfills were divided into spot waste landfills, multi-point landfills, area landfills and linear landfills. Spot landfill is the dominant type of illegal waste landfills 12 objects, multi-point landfills were found in three locations and area landfills in two locations. Only one linear landfill was located. Waste disposal sites were located at different distance from residential areas. It has been determined, that the formation of illegal waste landfills is very often linked to the ease of availability of the local residents to the locations of waste disposal in the form of access roads or good location of the site. It has been determined, that despite the reforms of the waste management, abandonment of waste on undesignated sites is still observed - at six places the new wastes has been added after the 4 ...
The research was carried out on the section of the watercourse located in the village Mostowo. Watercourse flows through the pipe at a certain distance. The study was carried out on the uncanalized part with length of 1022 m. At this section the three measuring points were established. Bottom sediments were analyzed for the contents of selected heavy metals, such as: Cd, Co, Cr, Cu, Ni, Pb, Zn. Using the maximum concentrations of heavy metals in the analyzed sediment samples the evaluation of watercourse sediment contamination was done. The aim of the study was the assessment of sediments contamination and indication on possibilities of their utilization. The obtained results indicate that the highest concentrations of heavy metals in the sediments were in samples taken from a point located near the business buildings, allotments and near the seed headquarters (P-1) in a layers 5-10 and 20-30 cm. The results indicate that the studied sediments differently accumulated the heavy metals depending on the location of sampling points. That accumulation can be expressed by different series of heavy metals concentration in the sediment. For the point P 1 it takes the following form: Zn> Pb> Cu> Cr> Ni> Co> Cd, for the point ...
The main purpose of this work was to determine the degree of negative impact of heavy metals accumulated in the water sediments to aquatic organisms. Samples of sediments were collected in winter 2013, from 4 layers of sediment (0-5, 5-10, 10-20 and 20-30 cm) at three points along the water reservoir. Sediments were prepared for analysis in accordance with the procedures applied in soil science. The analysis was carried out for the fraction with a particle diameter less than 1 mm. The total content of such elements as Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb and Zn, was determined by atomic absorption spectrometry (using the Thermo Scientific iCE 3000 series spectrometer) after digestion in a mixture (5:1) of concentrated acid HNO3 (65 %) and HClO4 (60%). The total Hg content was obtained by using the AMA 254 analyzer. Only the lead content in the analyzed samples of bottom sediments exceeded the contamination value given by polish law (the Regulation of the Minister of Environment). According to the classification of PGI samples of sediments are classified mainly as medium polluted sediments (Class II), with the exception of zinc and lead concentrations (Class III). Due to the value of the indicator ...
