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Wyszukujesz frazę "Sołtysiak, J." wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Application of pollution indices for the spatiotemporal assessment of the negative impact of a municipal landfill on groundwater (Tychy, southern Poland)
Autorzy:
Dąbrowska, D.
Witkowski, A. J.
Sołtysiak, M.
Powiązania:
https://bibliotekanauki.pl/articles/2060452.pdf
Data publikacji:
2018
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
hydrogeology
groundwater risk assessment
contamination index
municipal landfill site
Tychy-Urbanowice
Opis:
Risk assessment plays an essential role in the protection of groundwater resources, especially in the regions of potential contamination sources. The present research was aimed at assessing the risk of groundwater contamination in the vicinity of the Tychy-Urbanowice municipal landfill systems (southern Poland), using the contamination index tool. Groundwater samples from the Quaternary Aquifer were collected from 22 piezometers located near the former landfill site (currently closed) and the new sealed landfill site during a monitoring period from 1995 to 2015. Extremely high values (1700) of the groundwater contamination index were observed in a piezometer that captures water beneath the abandoned landfill. Very high index values (154 or 216) were also noticed in piezometers located in the groundwater outflow from the landfill site. Results of interpolation for individual piezometers, which capture only the upper or lower part of an aquifer, are unrepresentative. The interpolation for the mean values of the contamination index increased the groundwater risk assessment.
Źródło:
Geological Quarterly; 2018, 62, 3; 496--508
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reconstructing seasonality using δ18O in incremental layers of human enamel : a test of the analytical protocol developed for SHRIMP IIe/MC ion microprobe
Autorzy:
Krzemińska, E.
Sołtysiak, A.
Czupyt, Z. J.
Powiązania:
https://bibliotekanauki.pl/articles/2060382.pdf
Data publikacji:
2017
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
palaeoclimate
bioapatite
human teeth
sequential microsampling
Middle East
Mesopotamia
Opis:
A number of recent studies dealing with palaeoclimate and environmental reconstruction include the measurement of oxygen isotope composition of mammalian teeth. Some of them analyse a temporal sequence of the changes recorded in bioapatite from enamel layers representing the whole period of tooth development. Enamel samples display large intra-tooth δ18O variations that may reflect a seasonal fluctuation in the δ18O of local palaeoclimate parameters. The present paper provides an effective analytical protocol for sequential δ18O analysis of human teeth using SHRIMP IIe/MC ion microprobe. It is possible to follow the inner enamel layer along enamel-dentine junction on a high spatial scale in a range about 0.02 mm of spot diameter and 0.12–0.14 mm of the distance between spots. Using the methodology described herein, we can achieve an external precision for δ18O analysis <0.2‰ (1σ). The number of 60 to 90 single analyses covering the enamel layer between the incisal and apical ends is enough to obtain temporal resolution of less than one month and to document precisely seasonal fluctuation caused by local environmental and climate factors. The methodology of δ18O in situ measurements has been tested on human teeth from Tell Majnuna, a 4th millennium BCE cemetery in Northern Mesopotamia, which is a relatively arid area with high seasonal differences in precipitation and temperature. Observed pattern of δ18O variations is consistent with expected seasonal fluctuations, although the overall effect is blurred by some inertia in the enamel maturation.
Źródło:
Geological Quarterly; 2017, 61, 2; 370--383
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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