Joanna Najman - Academia.edu (original) (raw)
Papers by Joanna Najman
Hydrological Processes
We discuss a study designed to elucidate the genesis and inflow conditions at riverbank filtratio... more We discuss a study designed to elucidate the genesis and inflow conditions at riverbank filtration wells located on a mountain river. This article seeks to identify the most important drivers of spatio‐temporal dynamics of water flow in the hyporheic exchange zone, in natural conditions and conditions disturbed by the water abstraction. In our study we try to contribute to further understanding the dynamics of groundwater mixing with river water in the hyporheic exchange zone. We focus on understanding river/aquifer interactions at the scale of reach of an intake, especially the unidirectional water flows induced by water abstraction. To understand these issues, a two‐day field hydrogeological experiment was conducted based on a pumping test of increasing intensity. At each pumping stage, groundwater and river samples were collected to determine the concentration of noble gases, CFCs, SF6, stable isotope content, and the chemical composition of the water. The study results indicate ...
We discuss a study that aimed to understand the genesis and inflow conditions of abstracted water... more We discuss a study that aimed to understand the genesis and inflow conditions of abstracted water by intake with induced infiltration located at a mountain river. A simple approach based on a combination of two research techniques was used: two-component water mixing modelling and studies of the variability of concentrations of environmental tracers in a dynamic test. This approach is versatile, easy to apply and modify, and can be good method for controlling surface/groundwater interactions. We used the gas tracers because gas exchange and dissolution of gases in infiltrating rainwater gives it a unique gas signature that is largely retained in groundwater. We focus on understanding river/aquifer interactions at the scale of reach of an intake. To understand these issues, a two-day field hydrogeological experiment based on a pumping test of increasing intensity was conducted. At each pumping stage, groundwater and river samples were collected to determine the concentration of noble...
Biuletyn Państwowego Instytutu Geologicznego, Dec 19, 2019
Institute of Nuclear Physics Polish Academy of Sciences, 2015
tal tracers is described. Resistance of groundwater systems to anthropogenic pollution is correla... more tal tracers is described. Resistance of groundwater systems to anthropogenic pollution is correlated with the age of water, which can be determined by means of environmental tracers. The paper presents modified chromatographic measurement system which allow for the determination of CFC-11, CFC-12, SF6, Ne, Ar and He. Developed chromatographic system can be used to dating young groundwaters, and the helium method allows for the determination of groundwater age in the range from Holocene to the last interglacial. The developed measurement system of argon and neon in water allows to determine recharge temperature and the amount of "excess air" in groundwater. During the work implementation authors took part in a research project organized by the Université Paris-Sud and Université Rennes, France: Gdat1 intercomparison exercice. This exercise aimed to sampling groundwater from boreholes from the area of Paris (along with 31 laboratories from 14 countries) and test, upon them, ...
Acta Physica Polonica A, 2016
Biuletyn - Panstwowego Instytutu Geologicznego
Wody mineralne występujące na obszarze Krakowa związane są głównie z wapieniami jury, marglami kr... more Wody mineralne występujące na obszarze Krakowa związane są głównie z wapieniami jury, marglami kredy oraz piaskami pa-leogenu i neogenu, przykrytymi nieprzepuszczalnymi iłami miocenu. Wiêkszooeae tych wód pochodzi z zasilania w końcowym stadium ostat-niego zlodowacenia, a stężenia chlorków wynoszą około 70–750 mg/dm 3 . Wyjątek stanowi woda wypływająca z wapiennego zrębu na Skałce koło Wawelu, w której stężenie chlorków wynosi około 1800 mg/dm 3 . Woda ta jest prawdopodobnie mieszaniną typowej wody wieku glacjalnego ze starszą wodą plejstoceńską. Słowa kluczowe: wody mineralne, znaczniki środowiskowe, wiek wody, pochodzenie zasolenia. Abstract. In the area of Kraków, mineral waters occur mainly in Jurassic limestones, Cretaceous marls and Paleogene and Neogene sands, which are covered by impermeable Miocene clays. Majority of these waters were recharged at the end of the last glacial, and the con-tents of chlorides are in the range of 70–750 mg/L. The water outflowing from a limesto...
Gaz, woda; technika sanitarna
Odkrycie chromatografii dokonane przed 110 laty w Warszawie na początku ubiegłego wieku dzięki pr... more Odkrycie chromatografii dokonane przed 110 laty w Warszawie na początku ubiegłego wieku dzięki pracom M.S. Cwieta, zapoczątkowało rozwój metod analitycznych, które pozwoliły ludzkości przewidzieć i zapobiec zagrożeniom, jakie niósł rozwój jej cywilizacji. Największy wkład w badaniach nad skażeniem środowiska ma chromatografia gazowa powstała po II Wojnie Światowej w latach 50-tych ubiegłego wieku w Anglii w wyniku prac Jamesa i Martina. W 1958 roku Lovelock opracował radiojonizacyjny detektor, nazwany detektorem wychwytu elektronów (Electron Capture Detektor-ECD) [1]. Dzięki wysokiej selektywności detektora ECD w stosunku do związków chlorowcowych i ich niskiej granicy wykrywalności, obszar zastosowań metod analitycznych z zastosowaniem detektora stale się poszerza. Granica wykrywalności detektora dla niektórych związków chlorowcowych osiąga ułamki pikograma. Granica ta nie jest jednakowa dla wszystkich związków i chociaż detektor ECD jest selektywny dla związków elektroujemnych, to...
key words: gas chromatography (GC) measurement method, groundwater dating, He, SF6, F-11, F-12, A... more key words: gas chromatography (GC) measurement method, groundwater dating, He, SF6, F-11, F-12, Ar, Ne. In this work the method for evaluating resistance hydrogeological systems to anthropogenic pollution using environmental tracers is described. Resistance groundwater systems to anthropogenic pollution is correlated with the age of water, which can be determined by means of environmental tracers SF6, F-11, F-12 [1] and He. To correct measured values of He and SF6 the temperature of recharge and the excess air is needed and can be determined by measuring Ne and Ar concentrations in groundwater. This paper describes three measurement GC systems to determine the concentrations of greenhouse gases: sulfur hexafluoride (SF6) and chlorofluorocarbons F-11, F-12 [2], the noble gases neon (Ne), argon (Ar) [3] and helium (He) [4] in groundwater. The first system for measurements of the concentration of SF6, F-11 and F-12 consists of a gas chromatograph, type N504 is supplied with nitrogen ca...
In this work we present a chromatographic method for simultaneous analysis of helium, neon and ar... more In this work we present a chromatographic method for simultaneous analysis of helium, neon and argon in groundwater from one water sample. The concentration of helium in groundwater may be a good environmental tracer for groundwater dating. Proper use of environmental tracers in hydrogeology for dating purpose, requires the knowledge of recharge temperature of the system and the so-called “Excess air”. “Excess air” allows for the necessary correction of measured concentration of helium in water. Both parameters can be determined by measuring the concentration of argon and neon in groundwater. In the Department of Physicochemistry of Ecosystems from the Institute of Nuclear Physics Polish Academy of Sciences the chromatographic method for the simultaneous analysis of He, Ar and Ne in one groundwater sample for dating purposes was developed. Water samples are taken to the stainless steel vessels with a capacity of 2900 cc. Gases are extracted from water by headspace method (HS). Heliu...
key words: gas chromatography, trace gases, CFCs and SF6 measurements in urban area. Halogenated ... more key words: gas chromatography, trace gases, CFCs and SF6 measurements in urban area. Halogenated compounds (chlorofluorocarbons-CFCs), both natural and industrial, so-called freons, currently exist as trace gases in the entire human environment. The CFCs cause ozone depletion in the stratosphere. Moreover CFCs and SF6 take part in intensification of the greenhouse effect. The decisions of the Vienna Convention (1985) and of the Montreal Protocol (1987) limited the world production level of CFCs in the year 1989 at least 35% after 2004, 90% after 2015 and total reduction after year 2030. On account of international agreements, the measurements of CFCs and SF6 in air were started. Measurement "clean" stations were situated at places outside of urban areas influence and gathered on world program - AGAGE (Advanced Global Atmospheric Gases Experiment). One of these stations is Mace Head (Ireland, 53o N, 10o W), which participates in AGAGE since 1987 [1] and in European InGOS (I...
Helium concentration in groundwater is a fine indicator in water dating in a range from a hundred... more Helium concentration in groundwater is a fine indicator in water dating in a range from a hundred to tens of thousands of years. Gas chromatography (GC) measurements of helium can be used as an alternative to mass spectrometry (MS) determinations of 4He for groundwater dating [1]. Argon and neon concentrations mainly serve for determining the temperature of recharge and the air excess which is needed to correct measured values of helium concentration [2] . A chromatographic measurement system of helium, argon and neon concentration in groundwater is presented [3]. Water samples are taken from groundwater with a precise procedure without contamination with air in a special stainless steel vessels of volume equal to 2900 cm3. Helium is extracted from water samples using the head-space method. After enrichment by cryotrap method helium is analyzed in the gas chromatograph equipped with the thermal conductivity detector (TCD) with detection limit of about 2.8 ng He. The helium limit of ...
Ground water, Jan 17, 2015
Applications of the Helium (He) method known so far consisted mainly of (4) He measurements using... more Applications of the Helium (He) method known so far consisted mainly of (4) He measurements using a special mass spectrometer. (4) He measurements for groundwater dating purposes can be replaced by total He ((3) He+(4) He) concentration measurements because the content of (3) He can be ignored. The concentrations of (3) He are very low and (3) He/(4) He ratios do not exceed 1.0·10(-5) in most cases. In this study, the total He concentrations in groundwater were determined using the gas chromatographic (GC) method as an alternative to methods based on spectrometry measurement. He concentrations in groundwater were used for the determination of residence time and groundwater circulation. Additionally, the radiocarbon method was used to determine the value of the external He flux (JHe ) in the study area. Obtained low He concentrations and their small variation within the ca. 65 km long section along which groundwater flows indicate that it is likely there is relatively short residence...
Hydrological Processes
We discuss a study designed to elucidate the genesis and inflow conditions at riverbank filtratio... more We discuss a study designed to elucidate the genesis and inflow conditions at riverbank filtration wells located on a mountain river. This article seeks to identify the most important drivers of spatio‐temporal dynamics of water flow in the hyporheic exchange zone, in natural conditions and conditions disturbed by the water abstraction. In our study we try to contribute to further understanding the dynamics of groundwater mixing with river water in the hyporheic exchange zone. We focus on understanding river/aquifer interactions at the scale of reach of an intake, especially the unidirectional water flows induced by water abstraction. To understand these issues, a two‐day field hydrogeological experiment was conducted based on a pumping test of increasing intensity. At each pumping stage, groundwater and river samples were collected to determine the concentration of noble gases, CFCs, SF6, stable isotope content, and the chemical composition of the water. The study results indicate ...
We discuss a study that aimed to understand the genesis and inflow conditions of abstracted water... more We discuss a study that aimed to understand the genesis and inflow conditions of abstracted water by intake with induced infiltration located at a mountain river. A simple approach based on a combination of two research techniques was used: two-component water mixing modelling and studies of the variability of concentrations of environmental tracers in a dynamic test. This approach is versatile, easy to apply and modify, and can be good method for controlling surface/groundwater interactions. We used the gas tracers because gas exchange and dissolution of gases in infiltrating rainwater gives it a unique gas signature that is largely retained in groundwater. We focus on understanding river/aquifer interactions at the scale of reach of an intake. To understand these issues, a two-day field hydrogeological experiment based on a pumping test of increasing intensity was conducted. At each pumping stage, groundwater and river samples were collected to determine the concentration of noble...
Biuletyn Państwowego Instytutu Geologicznego, Dec 19, 2019
Institute of Nuclear Physics Polish Academy of Sciences, 2015
tal tracers is described. Resistance of groundwater systems to anthropogenic pollution is correla... more tal tracers is described. Resistance of groundwater systems to anthropogenic pollution is correlated with the age of water, which can be determined by means of environmental tracers. The paper presents modified chromatographic measurement system which allow for the determination of CFC-11, CFC-12, SF6, Ne, Ar and He. Developed chromatographic system can be used to dating young groundwaters, and the helium method allows for the determination of groundwater age in the range from Holocene to the last interglacial. The developed measurement system of argon and neon in water allows to determine recharge temperature and the amount of "excess air" in groundwater. During the work implementation authors took part in a research project organized by the Université Paris-Sud and Université Rennes, France: Gdat1 intercomparison exercice. This exercise aimed to sampling groundwater from boreholes from the area of Paris (along with 31 laboratories from 14 countries) and test, upon them, ...
Acta Physica Polonica A, 2016
Biuletyn - Panstwowego Instytutu Geologicznego
Wody mineralne występujące na obszarze Krakowa związane są głównie z wapieniami jury, marglami kr... more Wody mineralne występujące na obszarze Krakowa związane są głównie z wapieniami jury, marglami kredy oraz piaskami pa-leogenu i neogenu, przykrytymi nieprzepuszczalnymi iłami miocenu. Wiêkszooeae tych wód pochodzi z zasilania w końcowym stadium ostat-niego zlodowacenia, a stężenia chlorków wynoszą około 70–750 mg/dm 3 . Wyjątek stanowi woda wypływająca z wapiennego zrębu na Skałce koło Wawelu, w której stężenie chlorków wynosi około 1800 mg/dm 3 . Woda ta jest prawdopodobnie mieszaniną typowej wody wieku glacjalnego ze starszą wodą plejstoceńską. Słowa kluczowe: wody mineralne, znaczniki środowiskowe, wiek wody, pochodzenie zasolenia. Abstract. In the area of Kraków, mineral waters occur mainly in Jurassic limestones, Cretaceous marls and Paleogene and Neogene sands, which are covered by impermeable Miocene clays. Majority of these waters were recharged at the end of the last glacial, and the con-tents of chlorides are in the range of 70–750 mg/L. The water outflowing from a limesto...
Gaz, woda; technika sanitarna
Odkrycie chromatografii dokonane przed 110 laty w Warszawie na początku ubiegłego wieku dzięki pr... more Odkrycie chromatografii dokonane przed 110 laty w Warszawie na początku ubiegłego wieku dzięki pracom M.S. Cwieta, zapoczątkowało rozwój metod analitycznych, które pozwoliły ludzkości przewidzieć i zapobiec zagrożeniom, jakie niósł rozwój jej cywilizacji. Największy wkład w badaniach nad skażeniem środowiska ma chromatografia gazowa powstała po II Wojnie Światowej w latach 50-tych ubiegłego wieku w Anglii w wyniku prac Jamesa i Martina. W 1958 roku Lovelock opracował radiojonizacyjny detektor, nazwany detektorem wychwytu elektronów (Electron Capture Detektor-ECD) [1]. Dzięki wysokiej selektywności detektora ECD w stosunku do związków chlorowcowych i ich niskiej granicy wykrywalności, obszar zastosowań metod analitycznych z zastosowaniem detektora stale się poszerza. Granica wykrywalności detektora dla niektórych związków chlorowcowych osiąga ułamki pikograma. Granica ta nie jest jednakowa dla wszystkich związków i chociaż detektor ECD jest selektywny dla związków elektroujemnych, to...
key words: gas chromatography (GC) measurement method, groundwater dating, He, SF6, F-11, F-12, A... more key words: gas chromatography (GC) measurement method, groundwater dating, He, SF6, F-11, F-12, Ar, Ne. In this work the method for evaluating resistance hydrogeological systems to anthropogenic pollution using environmental tracers is described. Resistance groundwater systems to anthropogenic pollution is correlated with the age of water, which can be determined by means of environmental tracers SF6, F-11, F-12 [1] and He. To correct measured values of He and SF6 the temperature of recharge and the excess air is needed and can be determined by measuring Ne and Ar concentrations in groundwater. This paper describes three measurement GC systems to determine the concentrations of greenhouse gases: sulfur hexafluoride (SF6) and chlorofluorocarbons F-11, F-12 [2], the noble gases neon (Ne), argon (Ar) [3] and helium (He) [4] in groundwater. The first system for measurements of the concentration of SF6, F-11 and F-12 consists of a gas chromatograph, type N504 is supplied with nitrogen ca...
In this work we present a chromatographic method for simultaneous analysis of helium, neon and ar... more In this work we present a chromatographic method for simultaneous analysis of helium, neon and argon in groundwater from one water sample. The concentration of helium in groundwater may be a good environmental tracer for groundwater dating. Proper use of environmental tracers in hydrogeology for dating purpose, requires the knowledge of recharge temperature of the system and the so-called “Excess air”. “Excess air” allows for the necessary correction of measured concentration of helium in water. Both parameters can be determined by measuring the concentration of argon and neon in groundwater. In the Department of Physicochemistry of Ecosystems from the Institute of Nuclear Physics Polish Academy of Sciences the chromatographic method for the simultaneous analysis of He, Ar and Ne in one groundwater sample for dating purposes was developed. Water samples are taken to the stainless steel vessels with a capacity of 2900 cc. Gases are extracted from water by headspace method (HS). Heliu...
key words: gas chromatography, trace gases, CFCs and SF6 measurements in urban area. Halogenated ... more key words: gas chromatography, trace gases, CFCs and SF6 measurements in urban area. Halogenated compounds (chlorofluorocarbons-CFCs), both natural and industrial, so-called freons, currently exist as trace gases in the entire human environment. The CFCs cause ozone depletion in the stratosphere. Moreover CFCs and SF6 take part in intensification of the greenhouse effect. The decisions of the Vienna Convention (1985) and of the Montreal Protocol (1987) limited the world production level of CFCs in the year 1989 at least 35% after 2004, 90% after 2015 and total reduction after year 2030. On account of international agreements, the measurements of CFCs and SF6 in air were started. Measurement "clean" stations were situated at places outside of urban areas influence and gathered on world program - AGAGE (Advanced Global Atmospheric Gases Experiment). One of these stations is Mace Head (Ireland, 53o N, 10o W), which participates in AGAGE since 1987 [1] and in European InGOS (I...
Helium concentration in groundwater is a fine indicator in water dating in a range from a hundred... more Helium concentration in groundwater is a fine indicator in water dating in a range from a hundred to tens of thousands of years. Gas chromatography (GC) measurements of helium can be used as an alternative to mass spectrometry (MS) determinations of 4He for groundwater dating [1]. Argon and neon concentrations mainly serve for determining the temperature of recharge and the air excess which is needed to correct measured values of helium concentration [2] . A chromatographic measurement system of helium, argon and neon concentration in groundwater is presented [3]. Water samples are taken from groundwater with a precise procedure without contamination with air in a special stainless steel vessels of volume equal to 2900 cm3. Helium is extracted from water samples using the head-space method. After enrichment by cryotrap method helium is analyzed in the gas chromatograph equipped with the thermal conductivity detector (TCD) with detection limit of about 2.8 ng He. The helium limit of ...
Ground water, Jan 17, 2015
Applications of the Helium (He) method known so far consisted mainly of (4) He measurements using... more Applications of the Helium (He) method known so far consisted mainly of (4) He measurements using a special mass spectrometer. (4) He measurements for groundwater dating purposes can be replaced by total He ((3) He+(4) He) concentration measurements because the content of (3) He can be ignored. The concentrations of (3) He are very low and (3) He/(4) He ratios do not exceed 1.0·10(-5) in most cases. In this study, the total He concentrations in groundwater were determined using the gas chromatographic (GC) method as an alternative to methods based on spectrometry measurement. He concentrations in groundwater were used for the determination of residence time and groundwater circulation. Additionally, the radiocarbon method was used to determine the value of the external He flux (JHe ) in the study area. Obtained low He concentrations and their small variation within the ca. 65 km long section along which groundwater flows indicate that it is likely there is relatively short residence...