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Ozone Concentration at Ground Level Depending on the Content of NOx and Meteorological Conditions

. 2008;25(2):179-202. http://hrcak.srce.hr/index.php?show=clanak&id_clanak_jezik=49180&lang=en . [19] Juda-Rezler K. New challenges in air quality and climate modeling. Arch Environ Protec. 2010;36(1):3-28. www.ipis.zabrze.pl/dokumenty/archives/roczniki/2010/AOS10-1.pdf . [20] Kalbarczyk R, Kalbarczyk E. Assessment of the value of tropospheric ozone concentration depending on meteorological conditions as exemplified by the Widuchowa station (North-West Poland). Ecology (Bratislava). 2010;29(4):398-411. DOI: 10.4149/ecol_2010_04_398. [21] Wróblewski

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Effect of Meteorological Conditions and Building Location on CO2 Concentration in the University Campus

Abstract

The quality of atmospheric air and the level of its pollution is inextricably linked with the development of humanity. Its prevalence and the lack of any natural protective barriers causes that it becomes a recipient of increasingly large amounts of different types of pollutants. This is particularly dangerous in the areas where both meteorological conditions and type of building prevent the spread of pollution. By using a portable gas micro-chromatograph it is possible to observe and analyze a seasonal impact of building density on carbon dioxide concentration and the effect of atmospheric conditions on CO2 level in the air in a specified area.

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A universal meteorological method to identify potential risk of wind erosion on heavy-textured soils

in freezing point of Antarctic bryophytes after leaching and repeated freeze-thaw cycles. Antarctic Science, 4(4): 399–404. MURRAY, R. S., GRANT, C. D. (2007): The impact of irrigation on soil structure. The National Program for Sustainable Irrigation (Land and Water Australia), Canberra, Australia. MUŽÍKOVÁ, B., STŘEDA, T., PODHRÁZSKÁ, J., TOMAN, F. (2010): Meteorological conditions during extreme wind erosion events on heavy soils. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 58(1): 115–122. MUŽÍKOVÁ, B., STŘEDA, T

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Lindernia procumbens in Poland: the relationship between weather conditions and the occurrence of the species

Lindernia procumbens in Poland: the relationship between weather conditions and the occurrence of the species

New data regarding the occurrence of Lindernia procumbens (prostrate false pimpernel) are discussed and its current geographical range in Poland is given. A comparison of its past and present distribution in Poland indicates an advancement of the distribution limit northwards, which may be caused by climate changes, mostly, by an increased number of heat waves in the warm half-year. The relationship between the occurrence of the species and specific meteorological conditions, especially, unusually hot and dry summer periods, is analysed using long-term meteorological surveys.

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Influence of Rootstock on Plum Flowering Intensity in Different Growing Regions

The aim of the investigation is to evaluate the influence of different rootstocks on the flowering intensity of two plum cultivars: a hybrid `Kubanskaya Kometa` and European plum ‘Victoria’ in diverse locations. Sixteen well known European rootstocks were used, of which eight were clonal (St. Julien A, Brompton, Ackermann, Pixy, GF8/1, G5/22, GF655/2, Hamyra) and eight were seedlings (St. Julien INRA2, St. Julien d Orleans, St. Julien Noir, Brompton, Wangenheims Zwetche, St. Julien Wädenswil, Myrobalan, P. cerasifera var. divaricata). The evaluation was conducted in experimental orchards which were established in spring 2001 in Latvia, Estonia and Belarus. Trees were planted at a spacing of 5 × 3 m in four replications, three trees per plot. The obtained data from the years 2008-2012 are presented. The flowering intensity of plum trees depended on the cultivar rootstock combination. The influence of rootstock on flowering intensity differed between the years and growing region, and was closely correlates with meteorological conditions during the wintering period. Cv. ‘Kometa Kubanskaya’ had the highest blooming intensity in Pûre on rootstocks GF 655/2 and Wangenheims Zwetche; in Brest on Brompton seedlings, Julien d’ Orleans G5/22 and Ackermann; and in Polli on GF 8/1 and Brompton seedlings. ‘Victoria’ plum trees had the highest intensity of flowering on rootstocks Pixy and Wangenheims Zwetche in Pūre; on St. Julien INRA 2 and Ackermann in Brest; and on GF 655/2 and Ackermann in Polli.

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Dendroclimatological Analysis of Wild Pear Pyrus Pyraster (L.) Burgsd. From Biedrusko Military Area (West Poland) — Preliminary Study

, to identify major climatic factors affecting tree-ring width in this species and pointer years characteristic of this population, and to analyse their relationships with meteorological conditions. 2. Study Area The military training area in Biedrusko was established by Prussians in 1901. In 1940, the Nazis modernized the training grounds and expanded them to include 5 villages. After the 2 nd World War, The Polish authorities preserved the expanded military area. The villages were depopulated and most of the farm buildings were destroyed, but some

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Influence of Rootstocks on Plum Productivity in Different Growing Regions

Abstract

Proper selection of rootstock that is adapted to local growing conditions and climate is one of the most important preconditions for obtaining high yield in intensive plum orchards. The aim of the investigation was to evaluate the influence of different rootstocks on the productivity of two plum cultivars: ‘Kubanskaya Kometa’ (Prunus rossica. Erem.) and ‘Victoria’ (P. domestica L.) in different climatic conditions. The following sixteen rootstocks known in Europe were used in the trial: eight vegetatively propagated (‘St. Julien A’, ‘Brompton’, ‘Ackermann’, ‘Pixy’, ‘GF 8/1’, ‘G 5/22’, ‘GF 655/2’, ‘Hamyra’) and eight generatively propagated (‘St. Julien INRA2’, ‘St. Julien d’Orleans’, ‘St. Julien Noir’, ‘Brompton’, ‘Wangenheims Zwetsche’, ‘St. Julien Wädenswil’, ‘Myrobalan’, P. cerasifera var. divaricata). The evaluation was made in experimental orchards in Latvia, Estonia and Belarus. Orchards were established in spring 2001. Trees were planted at spacing 3 × 5 m in four replications, three trees per plot. The data obtained in years 2008-2015 are presented. The yield was influenced by rootstock and differed between years, growing regions and cultivars. The meteorological conditions during wintering period had significant influence on yield for trees on all evaluated rootstocks.

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Summer Ozone Concentrations in Zagreb Area

Summer Ozone Concentrations in Zagreb Area

Ozone concentrations were measured at three sites in Zagreb (Croatia) in the summer of 2005. Two measuring sites were in urban areas, while the third site was in a rural area about 30 km to the south from the centre of Zagreb. Hourly ozone averages varied between 1 μg m-3 and 209 μg m-3. Average concentrations were the lowest in the rural area, even though elevated concentrations were recorded occasionally. However, the weather conditions during measurements were untypical for that time of the year; over the summer of 2005 there were many rainy and cloudy days. Ozone concentrations at all three sites were the highest on Saturdays and Sundays, and the lowest on Thursdays. All the results were analysed with regard to the meteorological conditions (wind velocity and direction, temperature, relative humidity).

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Field gamma-ray spectrometer GS256: measurements stability

Field gamma-ray spectrometer GS256: measurements stability

The stability of in situ readings of the portable gamma-ray spectrometer GS256 during the field season of 2006 was studied. The instrument is an impulse detector of gamma rays based on NaI(Tl) 3" × 3" scintillation unit and 256-channel spectral analyzer which allows simultaneous assessment of up to 8 radioisotopes in rocks. It is commonly used in surface geophysical survey for the measurement of natural 40K, 238U and 232Th but also artificial 137Cs quantities.

The statistical evaluation is given of both repeated measurements - in the laboratory and at several field control points in different survey areas. The variability of values shows both the instrument stability and also the relative influence of some meteorological factors, mainly rainfalls.

The analysis shows an acceptable level of instrument measurements stability, the necessity to avoid measurement under unfavourable meteorological conditions and to keep detailed field book information about time, position and work conditions.

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Analysis of simultaneous time series of indoor, outdoor and soil air radon concentrations, meteorological and seismic data

Abstract

It is well known that the temporal dynamic of indoor and outdoor radon concentrations show complex patterns, which are partly not easy to interpret. Clearly, for physical reasons, they must be related to possibly variable conditions of radon generation, migration and atmospheric dispersion and accumulation. The aim of this study was to analyse long-time series of simultaneously measured indoor and outdoor radon concentrations, together with environmental quantities, which may act as control variables of Rn. The study was performed in Chiba, Japan, using two ionization chambers for parallel indoor and outdoor radon concentrations measurements over 4 years. Meteorological and seismic data were obtained from the Japan Metrological Agency (JMA).

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