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Urbanization processes of areas located within large cities entail a number of consequences, such as a change in employment structure of inhabitants in these areas. New housing developments attract a stream of well-educated and affluent urban dwellers, who move to the suburbs and contribute to the transformation of dominating functions in the areas located near the cities. Based on selected empirically measurable characteristics, synthetic measures were calculated for the phenomena analyzed with the use of the Hellwig method. The following functions have been included: agricultural, recreational, service, industrial, and residential. Based on the conducted analysis, it can be claimed that most of the examined municipalities are characterized by multifunctional development, with no dominant function apparent. Also, the analysis revealed the existence of three social classes in the studied areas, distinguished by a very high, high, or average standard of living of their members. The study found that the highest standard of living is typical for the municipalities where industrial and service-related functions dominate.
The article presents an overview of the results of a study concerning the zinc and lead content in urban soils of Kielce with regard to different land use. 61 topsoil samples were collected in the industrial areas (I), urban green areas (Z), urban allotment gardens (O), as well as parks and forests (P). The maximum values for zinc and lead were observed in the industrial zone, i.e. 181.3 mg kg-1 and 112.6 mg kg-1, respectively; whereas the average content in the soils of Kielce oscillates at the level of 134.2 mg kg-1 for zinc and 92.85 mg kg-1 for lead. Geochemical indices, such as the geoaccumulation index (Igeo), contamination factor (CF) and accumulation index (AI) indicated that areas located in close proximity to the main roads of the city, especially in the city centre and the former industrial estate called Białogon, are characterised by the highest concentration of the analysed heavy metals. Generally, the enrichment of soils in zinc and lead decreases further from the city centre. In most cases, the content of the analysed heavy metals in surface layers of urban soils considerably exceeded values considered as geochemical background and valid legal norms of the Ordinance of the Minister of Environment on soil quality standards and land quality standards (Journal of Laws of 2002, No. 165, item 1359). The exceeded values of the analysed metals are caused mainly by deposition of contamination from car exhaust emissions and broadly defined industry.
PM-2.5 and PM-10 samples were collected in the centre of Katowice, Poland during February to May 2001. They were analyzed by gravimetry, X-ray photoelectron spectroscopy and scanning electron microscopy combined with an energy dispersive spectrometer and electron paramagnetic resonance. The combination of these methods allows us to analyze elemental composition, size and morphology of more than three hundred individual atmospheric particles. The composition of the aerosol particles is strongly influenced by meteorological conditions such as wind speed and direction. Mineral elements mainly existed in large-size particles. The anthropogenic pol­lution elements, however, are contained in corpuscles (< 2 ^m). In comparison with the situation in the wintertime, the number of particles rich in some heavy metals in springtime was found to be lower. The EPR spectra are complex and their features correspond to: I type: Cu2+ centra in a low-symmetry host site, II type: radical species in the soot, which appears as the paramagnetic pyrolyzed product.
Four major microfacies have been recognized in the Psie Górki section and the bioclastic content indicates an open marine environment in the photic zone close to an algal shole. Sedimentological studies point to a regressive episode starting close to the Frasnian–Famennian boundary. The regressive microfacies pattern is revealed by the presence of semirestricted algal microbreccias that compose all of the lower part of the Famennian. The regression was accompanied by meteoric water invasion as the sea level fell. Seventy−six ostracod species are recorded. The ostracod assemblage, dominated by podocopids, belongs to the Eifelian ecotype and is indicative of a well−oxygenated marine environment below fair−weather wave base in the Frasnian part of the section, and of shallower environments in the base of the Famennian. No ostracod assemblage characteristic of hypoxic or semi−restricted water conditions has been recorded. The rate of extinction of ostracod species (>70%) close to the Frasnian–Famennian boundary is comparable with that known on the same level in several other sections investigated in the world. Five new ostracod species are proposed by J.−G. Casier and F. Lethiers: Selebratina vellicata, Samarella? minuta, Bairdiocypris ventrorecta, Acratia pentagona, and “Bairdia” psiegorkiensis.
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