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Subject and purpose of work: The article presents research aimed at creating the ranking of provinces due to the degree of environmental pollution. The presentation of the spatial distribution of pollutants should result in taking appropriate pro-ecological actions in the provinces. Materials and methods: Secondary material included in the research was the publication entitled “Environmental Protection – Environment 2017” by the Central Statistical Office. The method of ranking diagnostic variables was applied and then a synthetic variable determining the level of pollution in individual provinces was constructed, which made it possible to create their ranking. In the final stage, the author’s own method was implemented in order to divide the provinces into 3 groups. Results: The provinces were ranked from a relatively little to very polluted ones. Three groups of provinces were distinguished according to the criterion discussed. It has been revealed that the third group with the highest degree of environmental contamination includes as many as 8 provinces, that is half of them. Conclusions: The author believes that in order to prepare a more precise spatial diagnosis of the state of the natural environment in Poland, research has to be extended by including adequate information at the county level.
The investigations aimed at finding the interdependencies between motor fitness and somatic traits, and the degree of environment pollution. The examined material consisted of children and teenagers from the environs of Cracow, grouped in three age categories (1002 girls and 1043 boys), and was classified following the environmental pollution intensity of the locality. Considered were two extreme groups of low and high pollution.The examinations included somatic traits, functional abilities, coordination ability and energetic abilities.The results indicate that functional and motor abilities, especially coordination skills, are a more sensitive index of detrimental effects of pollution than somatic characteristics.
Humic substances contained in ground and surface waters increase the degree of their pollution, give it a specific colour and contribute to the formation of toxic disinfection by-products in the process of water treatment. Coagulation is an effective method of removing organic compounds, including humic acids (HA), from water and wastewater. The proper selection of coagulants and optimization of such parameters as coagulant dose and the pH of the solution enable improvement of coagulation efficiency. The objective of the present study was to determine the efficiency of humic acids removal by coagulation, depending on the dose of Al and Fe(III) salts and pH of the analyzed solutions. A model alkaline solution and 0.2 M solutions of Al₂ (SO₄)₃ and Fe₂ (SO₄)₃ were used. The experiment was performed with and without pH adjustment, by a standard jar test procedure. COD-Cr [mg O₂ ·dm⁻³], colour – PtCo [mg·dm⁻³], turbidity – FTU [mg·dm⁻³], suspended solids – SS [mg·dm⁻³], pH and streaming potential – SP [mV] were determined during coagulation tests. In the solutions coagulated without pH adjustment and with the optimum doses of Al₂ (SO₄)₃ and Fe₂ (SO₄)₃ ,COD was at a level of 0.1 to 3% of the initial value and colour was removed almost completely. Iron(III) sulfate was found to be slightly more effective as a coagulant, in respect to COD removal. The results of electrokinetic measurements showed that the charge of molecules of humic colloids depends on the type and concentration of coagulating salt, as well as on the pH of the solution. The analysis of coagulation with pH adjustment revealed that there exists the optimum value of pH for each of the salt doses applied in the experiment. Coagulation with the use of Al₂ (SO₄)₃ and Fe₂ (SO₄)₃ proceeded at pH < 5.8 and pH < 4.2, respectively. A decrease in the pH of an HA solution allowed us to considerably (even eight-fold) reduce the dose of coagulants, maintaining high (above 94%) efficiency of humic acid removal by coagulation.
Studies were carried out on the content of NH4-N, NO2-N, NO3-N and numbers of bacteria indicatory of water pollution (TVC 20 degreesC, TVC 30 degreesC) and its sanitary state (TC, FC, FS) in deep wells and shallow piezometric boreholes, as well as on bacteriological contamination of water in rivers Sawica and Omulew, in the area of water-bearing formations of Omulewski Aquifer (with no isolation from the surface), in 1995-1997 (after liquidation of the majority of large cattle and pig breeding farms in this area). The following were distinguished: 1. wells in afforested area in Sedansk and Narty, 2. wells located in farm lands of individual farmers in Jedwabno and Kot, 3. wells located in breeding farms of foxes, cattle and pigs in the villages Janowo, Dzierzki, Wesolowo, Wielbark, Przezdziek, Baranowo, Wyzegi, and 4. piezometric boreholes in the cattle farm at Wesolowo. Water of Sawica River (together with water from trout ponds fed by this river) and of Omulew River were analyzed at Janowo, Kot, Wesolowo and Wielbark, close to respective wells and boreholes. The degree of chemical and bacteriological contamination of well waters was diversified, depending on current and earlier use of land in the area of Omulewski Aquifer. NH4-N content decreased in well and borehole waters located in the area of former cattle and pig farms at Dzierzki, Wesolowo, Przezdziek, Baranowo and Wyzegi compared to the levels found in 1989-1993. Notwithstanding this, its level in some wells exceeded 0.5 mg/l NH4-N, i.e. the maximum level permissible in drinking water and water used for household purposes. As regards the sanitary state, only wells in Sedansk conformed to the standards for drinking and household water. Contrarily to what was expected, there was no decrease of indicatory bacteria numbers in water of wells and boreholes located in the area of former large cattle and pig farms. Water in deep wells at Kot, Wesolowo and Wielbark usually contained higher numbers of indicatory bacteria in the periods when their levels increased also in Sawica and Omulew rivers.
The research was aimed at defining the possibilities to determine the state of soi contamination by means of a thermal-visional computer system. A liquid fuel base in Grabowm Wielkie near Wroclaw was subjected to research. Thermal images were made from the deck of a plane, at a height of 500m. At the same time, colourful aerial photographs were taken and the base picture was recorded with a video camera, with a simultaneous indicator verification in the area. Quantity data concerning the contamination were obtained by means of a KVA sounder The amount of hydrocarbons in the air was determined using Kitagawa and Drager detector tubes. The usefulness of thermography in this kind of research was proved, determining a higher actual temperature of the contaminated area than the one free from contamination taking into account their emissivity.
Distribution and availability of heavy metals to plants is important when assessing the environmental quality of an area. The objectives of this study conducted in 2002 were: a) determine the levels of the heavy metals cadmium (Cd), copper (Cu), lead (Pb), manganese (Mn), nickel (Ni) and zinc (Zn) in the agricultural soils of the Bursa plain so that the degree of pollution could be ascertained, b) identify the various heavy metal forms present in soils using a fractionation scheme based on sequential extraction, and c) to find possible dependence on soil physicochemical properties. Total heavy metal content of the soils studied was generally higher than the levels reported in literature for similar soils, suggesting some degree of pollution with heavy metals. The exchangeable forms of the heavy metals, however, were very low, indicating that under present conditions, the availability of heavy metals to plants is at a minimum.
The first estimate of diatom indicatory values in Poland is presented. It comprises 455 diatom taxa occurring in ten ecologically different ecosystems: four rivers of various type and degree of pollution, limnocrenic and salty springs, oligotrophic springs, a dam reservoir, a brown coal excavation pit and a peat excavation pit. Indicatory values are used to describe saprobity, trophic conditions, tolerance for pollution, oxygen demand, water alkalinity – pH, salinity, distribution and abundance. The compiled list of diatoms contains information about the conditions that are preferred by a given species, consequently, it may constitute a basis for the biological assessment of water quality.
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