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Szybkość uwalniania się 222Rn z wód podziemnych do atmosfery

Przylibski Tadeusz A., Maciejewski Piotr, Zagożdżon Katarzyna D., Zagożdżon Paweł P.

Przegląd Geologiczny

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2022

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Vol. 70, nr 10

742--750

EN

The authors conducted studies on the release rate of 222Rn from groundwater flowing out of a spring, from metamorphic reservoir rocks. This source gives rise to a stream about 205 m long. The activity concentration of Rn in the spring was about 700 Bq/dm33, took place at a distance of about 1 70-180 metres from the spring. With regard to the waterflow path, flowtime and the volume of water flowing through the cross-section of the tested stream, the exhalation coefficient of222Rn from water to atmospheric air is 3.80 Bq/dm3/m, 1.51 Bq/dm3/s and 1. 25 Bq/dm3/dm3, respctively. According to the authors, further research conducted in other springs occurring in other types of rocks and under different flow conditions (at different times of the year) will allow characterizing the dynamics of the process of222Rn release from groundwater through surface waters into the atmosphere. Perhaps this process can be described with a universal mathematical function.

2

Rola instytutów badawczych we wsparciu działań adaptacyjnych do zmian klimatu

Granoszewski Wojciech, Kowalczyk Agnieszka, Ploch Izabela, Rubinkiewicz Jacek, Woźnicka Małgorzata, Kępińska-Kasprzak Małgorzata, Limanówka Danuta, Doktor Radosław, Struzik Piotr, Dubel Anna, Skotak Krzysztof, Hajto Małgorzata, Kozyra Jerzy, Pudełko Rafał, Żyłowska Katarzyna, Jędrejek Anna, Łopatka Artur, Jadczyszyn Jan, Nieróbca Anna, Doroszewski Andrzej, Barszczewska Marta

Przegląd Geologiczny

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2020

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Vol. 68, nr 1

25--44

EN

A crucial part of every adaptation planning and disaster risk reduction is estimation of vulnerable areas and risk in the future. Only a well-developed monitoring system could bring valuable information to create possible scenarios to set up adaptation plans. Monitoring systems of meteorological conditions, surface water, groundwater, landslides, seacoast, agricultural drought as well as their standards and methodologies, are crucial for establishing an effective warning system of every country, and thus are the subject of research conducted by national institutes. Therefore, the conditions of this national research (getting trained staff, equipment etc.) is essential to provide reliable information for a national adaptation plan and for economic assessment of climate change impacts. Poland has significant experiences in monitoring systems, data collecting and visualizing, as well as in the development of scenarios and risk maps. Methodologies and capacity building, necessary for their use, along with experiences and lessons, learned to get valuable information for disaster risk reduction, were presented by the authors from the research during the 24th session of the Conference of the Parties to the United Nations Framework Convention on Climate Change (COP 24) in Katowice (December 2018). The presentation contributed to the global adaptation process through experience sharing that is important for the relevant research conducted in the least developed countries.

3

Characteristics of petroleum compounds and their removal from the aquatic environment

Włodarczyk-Makuła Maria

Civil and Environmental Engineering Reports

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2020

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Vol. 30, no. 1

74--86

EN

The aim of the study was to characterize the components of crude oil, with particular emphasis on those that have a toxic effect on organisms, and to describe the sources of pollution and the methodology for determining these compounds in aqueous solutions. In addition, the study presents the legal provisions in the field of petroleum compounds and practical methods for their removal in the event of uncontrolled emission of these compounds into the aquatic environment as well as methods used in the treatment of wastewater loaded with these compounds.

4

The Effect of Heat Transfer Coefficient on Ice Layer Thickness on Water Surface (Communication)

Oleśkowicz Popiel Czesław, Wojtkowiak Janusz

Ciepłownictwo, Ogrzewnictwo, Wentylacja

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2019

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T. 50, nr 10

384--385

EN

In this communication it is proved that estimating time of formation of the ice layer on water the convective and radiation heat transfer between surrounding air and surface of ice cannot be ignored.

PL

W komunikacie wykazano, że do określenia czasu formowania się określonej grubości warstwy lodu na powierzchni wody niezbędna jest znajomość konwekcyjnego i radiacyjnego współczynnika przejmowania ciepła pomiędzy otaczającym powietrzem i powierzchnią warstwy lodu.

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Surfactants in Klodnica river (Katowice, Poland). Part I. Linear alkylbenzene sulphonates (LAS)

Ruman M., Olkowska E., Drąg-Śmigalska M., Jankowski G., Polkowska Ż.

Ecological Chemistry and Engineering. S

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2017

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Vol. 24, nr 1

53--63

EN

Surfactants are a group of compounds with specific physico-chemical properties and therefore they are used in many spheres of human activity. Surface-active substances undergo various physico-chemical transformations, what enables their migration between different elements of the environment and may lead to its pollution. Selected anionic surfactants were determined in samples of water from the Klodnica river (25 samples) and bottom sediments (25 samples). In most samples the presence of anionic analytes was confirmed. The determined concentration levels were in the range of up to 0.2105±0.0023 mg/dm3 or 0.207±0.010 μg/kg (surface water and bottom sediment samples, respectively). Comparing the concentrations of certain analytes found in liquid and solid environmental samples, it can be noticed that the surfactants containing a shorter alkyl chain in a molecule were present in higher concentrations in liquid samples (hydrophobicity increasing with the increasing length of the chain) and the other way round.

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The calculation of received optical power during airborne laser scanning of water object

Babushka A., Burshtynska K., Babiy L.

Geomatics, Landmanagement and Landscape

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2014

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no. 3

7--15

EN

In this paper calculation of some physical parameters of the receiver of laser scanning system is presented. Basic physical principles of laser scanning of water objects are considered. Ranging standard deviation for typical parameters of laser scanning system are calculated. Formula for calculation of reflected optical power for specular reflective objects is proposed.

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Zanieczyszczenia związkami azotu i fosforu wód powierzchniowych rezerwatu Świdwie

Gałczyńska M., Wybieralski J., Siwek H.

Inżynieria Ekologiczna

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2001

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Nr 5

47--53

PL

W wyniku trzykrotnego powiększenia obszaru rezerwatu Świdwie, nastąpiła poprawa czystości wód zasilających jezioro (kanał Jezioro-Lęgi i Bolków-Lęgi oraz rzeka Gunica na dopływie). Pod względem zawartości różnych form azotu badane wody odpowiadały klasie czystości wód, a tylko w przypadku zawartości ortofosforanów (V) mieściły się w II i III klasie. Zanieczyszczenie wód związkami fosforu nic odpowiada rozporządzeniu Ministra OŚZNiL. dnia 5.11.1991 r., które podaje, że na terenie rezerwatu przyrody wody powierzchniowe powinny odpowiadać I klasie czystości wód. Z przeprowadzonych badań wynika, że należy jeszcze uregulować gospodarkę ściekową we wsi Lęgi i Rzędziny, co powinno przynieść elekt w postaci ograniczenia dopływu związków fosforu do zeutrofizowanego jeziora Świdwie i może opóźnić jego zarastanie.

EN

As result of enlarging the reserve area theree-fold, the purity water which supply the lake (canal lake-Legi, cannal Bolków-Legi, Gunica river) the purity of water improved. As far as the nitrogen compounds were concerned, these waters held the first class of water purity, and only because of the content of orthophosphates (V) the purity was of second and third class. For this reason the pollution does not meet the standard set by regulation of the Minister of Environment Protection of Nov. 5. 1991 which requires that water within a nature reserve must be of the first class of purity. Our study did show that the sewage management: in the villages Legi and Rzędziny should be improved, which would result in a decreased input of P compounds into the eutrophicated Świdwie lake, thus delay its over-growing.