A submerged macrophyte of the Yenisei River, Elodea canadensis, was used to study the microdistribution of the artificial radionuclide 241Am among different components of the plant. The total amount of 241Am added to the experimental system was 1850±31 Bq/L. The total amount of 241Am accumulated by the plants was 182 Bq per sample, or 758±385…
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Geography and Earth Science Vol.3 Meghadrigedda, a non-perennial drainage system is one of the major water resources of Vishakhapatnam city located in the northern coastal region of Andhra Pradesh, India. It traverses through the hilly terrain of Eastern GhatMobile Belt (EGMB) characterized by khondalitic rock formations. Excessive siltation scenario aggravated due to soil erosion in…
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The evaporite sulfate deposits in Loei-Wang Saphung (LWS) area of northeastern Thailand is a small evaporite sediment deposit with up to 50 m thick gypsum-anhydrite beds. The evaporite deposits are overlain by cross-laminated and fine-grained siliciclastic and carbonate rocks of the Carboniferous to Permian ages. This study documents some characteristics of the deposits, including lithologies,…
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The discharge of untreated liquid waste into the River Atta-dea makes its assessment of water quality indicators necessary with its associated human health implications and ecological management. Our study was therefore carried out to investigate the influence of untreated liquid waste on the physicochemical and microbiological parameters of the Atta-dea stream under different seasons in…
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Nematodes represent a very abundant group of soil organisms in the food web and are important for soil quality. In the present study, the diversity of nematodes in the soils of urban and rural areas of Thiruvananthapuram District was noted and their densities calculated. Different categories of land use areas (coastal area, sewage disposal area,…
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The assessment of potential health risks posed by formaldehyde in clothing to consumers is of increasing concern worldwide. Because of this, it is necessary to develop an exposure model that can realistically mimic clothes wearing conditions. This study aims to preliminarily develop a health risk assessment model for formaldehyde in clothing, and then to assess…
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The rising of the world’s population leads automatically to the rising of water demand. As a consequence the lack of drinking water increases. Currently, approximately 1.2 billion people globally (one-sixth of the world’s population) do not have access to adequate clean water. Since a large part of the world’s population is concentrated in coastal areas,…
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A mathematical model, developed earlier in the Polar Geophysical Institute, is applied to investigate the transformation of global gas flows in the Earth’s atmosphere over the course of a year. The model is based on the numerical solution of the system of gas dynamic equations. The mathematical model produces three-dimensional distributions of the gas dynamic…
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