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This paper investigated concentrations of heavy metals in roadside surface soil samples collected from the D-100 highway in Sakarya, Turkey. The sequential extraction procedure has been applied to 24 soil surface samples and heavy metals concentrations (Ba, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, Sr, V, and Zn) determined by ICP-OES. The three-step BCR sequential extraction procedure was used in order to evaluate mobility, availability, and persistence of trace elements in roadside surface soil samples. Validation of the analytical results was checked by analysis of the BCR-701 certified reference material. The results showed good agreement between the obtained and the certified values for the heavy metals analyzed. The results show that Zn (229 µg/g), Pb (227 µg/g), Mn (129 µg/g), Fe (113 µg/g), and Cr (101 µg/g) are the most contaminated heavy metals in roadside surface soil samples.
Radiographic examination oi 35 birds (17 species) killed on roads revealed bone injuries in 17 (47%) cases. There were 30 different kinds of injuries to the skeletal system. In 29 cases these fractures concerned the long bones of the wings (n = 15) and the lower extremities (n = 14). One bird had a dislocated spinal column. Wing fractures affected the humerus (n = 6), radius (n = 6) and ulna (n = 3), while leg fractures affected the femur (n = 5), tibiotarsus (n = 8) and tarsometatarsus (n = 1). No relationship was found between the body weight and the location and number of bone injuries. In our opinion, the nature and type of skeletal injuries suggest that they were not the direct cause of death.
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Berner cascade impactor was used to study urban aerosols in two localities of the Pomeranian macro-region Słupsk and Hel in autumn at different weather conditions. The range of aerodynamic diameters between 0.009 and 8.11 mm were separated. Elementary composition for each diameter was obtained in a complex procedure consisting of laser ablation of deposits then their successive ionization in inductively coupled plasma generator and finally mass selection in a quadrupole spectrometer. The chemical element analysis method proofs to be quick and versatile, allowing to identify different sources of air pollution, natural, industrial and due to the road traffic.
W pracy przeanalizowano zmienność równoważnego poziomu dźwięku hałasu drogowego o dużej intensywności ruchu w zależności od przyjmowanych czasów odniesienia, pory doby i dni tygodnia. Określono wpływ czynnika czasu na zmienność hałasu i ocenę jego prognozowania w świetle obowiązujących i proponowanych standardów akustycznych.
The study concerns the assessment of the traffic influence on the concentrations of three particulate matter (PM) fractions and their basic components. The PM samples were collected simultaneously at two receptors in Katowice. The measurement sites represented the so-called urban background and traffi c points. The contents of the organic and elementary carbon as well as water-soluble ions were determined in the samples. It has been observed that the traffic (car engines) pollution emissions enrich the submicron and fine PM particles with the elementary carbon at a typical urban background in southern Poland. On the other hand, the infl uence of the re-suspension of the road and soil dust, caused by traffic, on the concentrations and chemical composition is observed for the coarse PM fraction.
The Warmia and Mazury District (northeastern Poland) is oriented towards agro-forestry and is less populated then other regions of Poland. The main objective of the present study was to characterize the effects of road traffic (road S 51) on an increase in the concentrations of lead and cadmium in the soil surface layer and cereal grains (wheat and barley grown on an experimental farm). The concentrations of lead and cadmium were determined in the studied material by atomic absorption spectrometry, following dry mineralization. The highest lead concentration was observed in soil samples collected at the starting point of sampling (10 m from the roadway edge). Road traffic load had no effect on lead concentration in the soil surface layer in samples taken more than 80 m from the road. Cadmium concentration in the soil did not depend on distance from the roadway. It was shown that differences in mean concentrations of lead and cadmium in barley and wheat grains were statistically significant. Lead and cadmium concentrations in all soil and grain samples analyzed were much lower than the maximum allowable levels in Poland of chemical impurities that can be present in foodstuffs and soils used for agricultural purposes.
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