irena ciglenecki - Profile on Academia.edu (original) (raw)
Papers by irena ciglenecki
Quantifying the anthropogenic metals concentrations in black crust (BCs) developing on the surfac... more Quantifying the anthropogenic metals concentrations in black crust (BCs) developing on the surface of historic buildings, gives a general overview of environmental pollution. In this study, trace elements concentrations were determined by ICP-MS in the samples of BCs from the monuments in two urban cities: Zagreb (Croatia) and Jajce (B&H). Higher concentration of trace metals in the sample from Jajce than those from Zagreb, can be associated to the age of the monument and to the different pollution sources.
Zenodo (CERN European Organization for Nuclear Research), Jun 8, 2023
The European Marine Board provides a pan-European platform for its Member organisations to develo... more The European Marine Board provides a pan-European platform for its Member organisations to develop common priorities, advance marine research, and to bridge the gap between science and policy in order to meet future marine science challenges and opportunities. The European Marine Board (EMB) is an independent and self-sustaining science policy interface organisation that currently represents 37 Member organisations from 18 European countries. It was established in 1995 to facilitate enhanced cooperation between European marine science organisations towards the development of a common vision on the strategic research priorities for marine science in Europe. The EMB promotes and supports knowledge transfer for improved leadership in European marine research. Its membership includes major national marine or oceanographic institutes, research funding agencies and national consortia of universities with a strong marine research focus. Adopting a strategic role, the European Marine Board serves its Member organisations by providing a forum within which marine research policy advice is developed and conveyed to national agencies and to the European Commission, with the objective of promoting the need for, and quality of, European marine research.
Chemical composition and sources of organic aerosol on the Adriatic coast in Croatia
Atmospheric Environment: X, 2022
Electrochemical properties of thiometalate anions (SbS43-, MoS42-)
Combined analysis using AMS and EESI measures for organic aerosol sourceapportionment of the Adriatic coast
Karakterizacija sumpornih spojeva i organske tvari u drenažnoj vodi hidromelioriranog tla elektrokemijskim metodama
Marine bio-chemical variabilities and secondary organic aerosols over the Middle Adriatic area: Insight into organosulfur prevalence
Complex processes of the Rogoznica lake regeneration
U vremenskom razdoblju od rujna 1997. do 1998. godine, nakon katastrofalne anoksije u Rogoznickom... more U vremenskom razdoblju od rujna 1997. do 1998. godine, nakon katastrofalne anoksije u Rogoznickom jezeru, pracene su mjesecne promjene temperature, saliniteta, koncentracije otopljenog kisika, raspodjele otopljene organske tvari, povrsinsko aktivnih tvari, koncentracije reduciranih specija sumpora (sulfid, elementni sumpor, tiosulfat), gustoce stanica fitoplanktona, te hranjivih soli (amonijak, nitrati, silikati, fosfati). Navedenim ispitivanjima pratila se dinamika procesa obnavljanja Rogoznickog jezera. Vrijednosti koncentracije kisika i reduciranih sumpornih specija vratile su se na uobicajene u vremenu od mjesec dana, dok je oporavak jezera s obzirom na vrstu i gustocu fitoplanktonskih stanica, te raspodjelu i koncentraciju hranjivih soli trajao duže (1 god.). Izrazito visoke koncentracije hranjivih soli duž cijelog vodenog stupca ((NH4+) do 200uM ; (NO3) do 8uM ; (PO4 3-) do 14 uM ; (SiO4 4-) do 300 uM) zabilježene nekoliko mjeseci nakon izmjesavanja vodenih slojeva ukazuje na vrlo složene i spore procese obnavljanja jezera.
Long-term investigations in the Rogoznica Lake related to eutrophication processes
Od 1994. do danas prate se sezonske promjene temperature, saliniteta, okomite raspodjele koncentr... more Od 1994. do danas prate se sezonske promjene temperature, saliniteta, okomite raspodjele koncentracije hranjivih soli, otopljenog organskog ugljika, povrsinski aktivnih tvari, reduciranih sumpornih specija, te fitoplanktona i zoo-planktona u vodenom stupcu jezera. Za vrijeme izražene termohaline stratifikacije (proljece, ljeto)u jezeru se razlikuje gornji, oksicni sloj s intenzivnim procesima primarne produkcije te donji anoksicni sloj bogat sumpornim spojevima. Biogeokemijski ciklus i regeneracija hranjivih soli glavni su faktori prirodne eutrofikacije u Rogoznickom jezeru. Naglo mijesanje slojeva rezultiralo je pojavom anoksicnih uvjeta u cijelom vodenom stupcu Rogoznickog jezera u rujnu 1997. godine i najvjerojatnije je direktna posljedica miniranja okolnog terena u okviru izgradnje nauticko-turistickog centra te je vezano za antropogenu eutrofikaciju.
Voltammetry of Copper Sulfide Particles
Adsorption of CuS and Cu2S nanoparticles on Hg electrode was investigated voltammetrically. The r... more Adsorption of CuS and Cu2S nanoparticles on Hg electrode was investigated voltammetrically. The results showed that metal-sulfise particles in the reaction with Hg produce effects, which could be confused with effects produced by dissolved sulfur species. This should be taken into account during electrochemical studies of sulfur speciation in natural waters.
Erratum to “Voltammetric characterization of metal sulfide particles and nanoparticles in model solutions and natural waters” [Anal. Chim. Acta 594 (2007) 44–51]
Analytica Chimica Acta, Oct 1, 2007
Seasonal variation of oxic-anoxic conditions in the small, seawater lake (Rogoznica Lake, East Adriatic Coast) related to the global climate changes
Long term investigation of the Rogoznica Lake (since 1994 seasonal variations of temperature, sal... more Long term investigation of the Rogoznica Lake (since 1994 seasonal variations of temperature, salinity, dissolved oxygen, nutrients, dissolved organic carbon, surface-active substances, reduced sulfur species, phytoplankton and zoo-plankton have been investigated) showed that main physical- chemical characteristic of the Lake is occurrence of well-defined seasonal stratification of water column as well as occurrence of anoxic conditions in deeper water layers (>10 m). During spring and summer surface water is well-oxygenated with intensive primaryproduction processes and bottom anoxic layer is characterized by high concentrations of sulfur compounds, nutrients and dissolved organic matter. The depth of anoxic water layer changessea sonally and it is greatly influenced by meteorological conditions, i.e. temperature and rainfall. Vertical mixing occurs during winter when cold, oxygen-rich water from the surface sinks downwards. As a result of mixing, bottom water enriched with nutrients is coming to the surface supporting new phytoplankton and oxygen productions. Results of recent investigations (since 2001 up to now) have showed significant change of organic matter properties what is a consequence of changes in phytoplankton abundance and composition. Also, recent investigations have showed significant change in hydrographic conditions, i.e. temperature and salinity what we believe is closely related with global climate changes
Voltammetric investigations of 2-dimethylarsinyl-ethanol sulphide in NaCl and seawater
Analytica Chimica Acta, Mar 1, 2001
Dimethylarsinylethanol sulphide (Me2As(S)CH2CH2OH) is produced under anaerobic conditions by some... more Dimethylarsinylethanol sulphide (Me2As(S)CH2CH2OH) is produced under anaerobic conditions by some seawater algae. Laboratory prepared Me2As(S)CH2CH2OH was investigated by voltammetric methods. It undergoes an oxidation process around 0V versus Ag/AgCl reference electrode forming a deposit of HgS on mercury electrode. During the subsequent reduction HgS is reduced to Hg0 and S2− or HS− depending on pH. Changes of pH influence both
Phytoplankton pigment dynamics in marine lake fluctuating between stratified and holomictic euxinic conditions
Marine Pollution Bulletin
The possibilities of voltammetry in the study reactivity of dissolved organic carbon (DOC) in natural waters
Journal of Solid State Electrochemistry
The role of biologically produced elementary sulfur (S0) on polysulphide formation in the marine euxinic environment (Rogoznica Lake)
Knjiga sažetaka 5. Simpozij studenata doktorskih studija PMF-a 2021. / Barišić, Dajana - Prirodoslovno-matematički fakultet, Sveučilište u Zagrebu, Zagreb, 2021., 2021
Application of the electrochemical method for monitoring polysulfides (SX2-) in marine euxinic environment (Rogoznica Lake, Croatia)
27th Croatian Meeting of Chemists and Chemical Engineers, Book of abstracts, 2021
Organska tvar, nutrijenti i metali u tragovima na granici faza slatka/morska voda u estuariju rijeke Krke
Vizija i upravljanje zaštićenim područjima prirode u Republici Hrvatskoj - Aktivna zaštita i održivo upravljanje u nacionalnom parku "Krka", 2015
Dissolved organic carbon accumulation during a bloom of invasive gelatinous zooplankton Mnemiopsis leidyi in the northern Adriatic Sea; case of the anomalous summer in 2017
Journal of Marine Systems, 2021
Rogoznica Lake (Croatia), a unique anoxic seawater system on the Adriatic coast under the anthropogenic pressures
Quantifying the anthropogenic metals concentrations in black crust (BCs) developing on the surfac... more Quantifying the anthropogenic metals concentrations in black crust (BCs) developing on the surface of historic buildings, gives a general overview of environmental pollution. In this study, trace elements concentrations were determined by ICP-MS in the samples of BCs from the monuments in two urban cities: Zagreb (Croatia) and Jajce (B&H). Higher concentration of trace metals in the sample from Jajce than those from Zagreb, can be associated to the age of the monument and to the different pollution sources.
Zenodo (CERN European Organization for Nuclear Research), Jun 8, 2023
The European Marine Board provides a pan-European platform for its Member organisations to develo... more The European Marine Board provides a pan-European platform for its Member organisations to develop common priorities, advance marine research, and to bridge the gap between science and policy in order to meet future marine science challenges and opportunities. The European Marine Board (EMB) is an independent and self-sustaining science policy interface organisation that currently represents 37 Member organisations from 18 European countries. It was established in 1995 to facilitate enhanced cooperation between European marine science organisations towards the development of a common vision on the strategic research priorities for marine science in Europe. The EMB promotes and supports knowledge transfer for improved leadership in European marine research. Its membership includes major national marine or oceanographic institutes, research funding agencies and national consortia of universities with a strong marine research focus. Adopting a strategic role, the European Marine Board serves its Member organisations by providing a forum within which marine research policy advice is developed and conveyed to national agencies and to the European Commission, with the objective of promoting the need for, and quality of, European marine research.
Chemical composition and sources of organic aerosol on the Adriatic coast in Croatia
Atmospheric Environment: X, 2022
Electrochemical properties of thiometalate anions (SbS43-, MoS42-)
Combined analysis using AMS and EESI measures for organic aerosol sourceapportionment of the Adriatic coast
Karakterizacija sumpornih spojeva i organske tvari u drenažnoj vodi hidromelioriranog tla elektrokemijskim metodama
Marine bio-chemical variabilities and secondary organic aerosols over the Middle Adriatic area: Insight into organosulfur prevalence
Complex processes of the Rogoznica lake regeneration
U vremenskom razdoblju od rujna 1997. do 1998. godine, nakon katastrofalne anoksije u Rogoznickom... more U vremenskom razdoblju od rujna 1997. do 1998. godine, nakon katastrofalne anoksije u Rogoznickom jezeru, pracene su mjesecne promjene temperature, saliniteta, koncentracije otopljenog kisika, raspodjele otopljene organske tvari, povrsinsko aktivnih tvari, koncentracije reduciranih specija sumpora (sulfid, elementni sumpor, tiosulfat), gustoce stanica fitoplanktona, te hranjivih soli (amonijak, nitrati, silikati, fosfati). Navedenim ispitivanjima pratila se dinamika procesa obnavljanja Rogoznickog jezera. Vrijednosti koncentracije kisika i reduciranih sumpornih specija vratile su se na uobicajene u vremenu od mjesec dana, dok je oporavak jezera s obzirom na vrstu i gustocu fitoplanktonskih stanica, te raspodjelu i koncentraciju hranjivih soli trajao duže (1 god.). Izrazito visoke koncentracije hranjivih soli duž cijelog vodenog stupca ((NH4+) do 200uM ; (NO3) do 8uM ; (PO4 3-) do 14 uM ; (SiO4 4-) do 300 uM) zabilježene nekoliko mjeseci nakon izmjesavanja vodenih slojeva ukazuje na vrlo složene i spore procese obnavljanja jezera.
Long-term investigations in the Rogoznica Lake related to eutrophication processes
Od 1994. do danas prate se sezonske promjene temperature, saliniteta, okomite raspodjele koncentr... more Od 1994. do danas prate se sezonske promjene temperature, saliniteta, okomite raspodjele koncentracije hranjivih soli, otopljenog organskog ugljika, povrsinski aktivnih tvari, reduciranih sumpornih specija, te fitoplanktona i zoo-planktona u vodenom stupcu jezera. Za vrijeme izražene termohaline stratifikacije (proljece, ljeto)u jezeru se razlikuje gornji, oksicni sloj s intenzivnim procesima primarne produkcije te donji anoksicni sloj bogat sumpornim spojevima. Biogeokemijski ciklus i regeneracija hranjivih soli glavni su faktori prirodne eutrofikacije u Rogoznickom jezeru. Naglo mijesanje slojeva rezultiralo je pojavom anoksicnih uvjeta u cijelom vodenom stupcu Rogoznickog jezera u rujnu 1997. godine i najvjerojatnije je direktna posljedica miniranja okolnog terena u okviru izgradnje nauticko-turistickog centra te je vezano za antropogenu eutrofikaciju.
Voltammetry of Copper Sulfide Particles
Adsorption of CuS and Cu2S nanoparticles on Hg electrode was investigated voltammetrically. The r... more Adsorption of CuS and Cu2S nanoparticles on Hg electrode was investigated voltammetrically. The results showed that metal-sulfise particles in the reaction with Hg produce effects, which could be confused with effects produced by dissolved sulfur species. This should be taken into account during electrochemical studies of sulfur speciation in natural waters.
Erratum to “Voltammetric characterization of metal sulfide particles and nanoparticles in model solutions and natural waters” [Anal. Chim. Acta 594 (2007) 44–51]
Analytica Chimica Acta, Oct 1, 2007
Seasonal variation of oxic-anoxic conditions in the small, seawater lake (Rogoznica Lake, East Adriatic Coast) related to the global climate changes
Long term investigation of the Rogoznica Lake (since 1994 seasonal variations of temperature, sal... more Long term investigation of the Rogoznica Lake (since 1994 seasonal variations of temperature, salinity, dissolved oxygen, nutrients, dissolved organic carbon, surface-active substances, reduced sulfur species, phytoplankton and zoo-plankton have been investigated) showed that main physical- chemical characteristic of the Lake is occurrence of well-defined seasonal stratification of water column as well as occurrence of anoxic conditions in deeper water layers (>10 m). During spring and summer surface water is well-oxygenated with intensive primaryproduction processes and bottom anoxic layer is characterized by high concentrations of sulfur compounds, nutrients and dissolved organic matter. The depth of anoxic water layer changessea sonally and it is greatly influenced by meteorological conditions, i.e. temperature and rainfall. Vertical mixing occurs during winter when cold, oxygen-rich water from the surface sinks downwards. As a result of mixing, bottom water enriched with nutrients is coming to the surface supporting new phytoplankton and oxygen productions. Results of recent investigations (since 2001 up to now) have showed significant change of organic matter properties what is a consequence of changes in phytoplankton abundance and composition. Also, recent investigations have showed significant change in hydrographic conditions, i.e. temperature and salinity what we believe is closely related with global climate changes
Voltammetric investigations of 2-dimethylarsinyl-ethanol sulphide in NaCl and seawater
Analytica Chimica Acta, Mar 1, 2001
Dimethylarsinylethanol sulphide (Me2As(S)CH2CH2OH) is produced under anaerobic conditions by some... more Dimethylarsinylethanol sulphide (Me2As(S)CH2CH2OH) is produced under anaerobic conditions by some seawater algae. Laboratory prepared Me2As(S)CH2CH2OH was investigated by voltammetric methods. It undergoes an oxidation process around 0V versus Ag/AgCl reference electrode forming a deposit of HgS on mercury electrode. During the subsequent reduction HgS is reduced to Hg0 and S2− or HS− depending on pH. Changes of pH influence both
Phytoplankton pigment dynamics in marine lake fluctuating between stratified and holomictic euxinic conditions
Marine Pollution Bulletin
The possibilities of voltammetry in the study reactivity of dissolved organic carbon (DOC) in natural waters
Journal of Solid State Electrochemistry
The role of biologically produced elementary sulfur (S0) on polysulphide formation in the marine euxinic environment (Rogoznica Lake)
Knjiga sažetaka 5. Simpozij studenata doktorskih studija PMF-a 2021. / Barišić, Dajana - Prirodoslovno-matematički fakultet, Sveučilište u Zagrebu, Zagreb, 2021., 2021
Application of the electrochemical method for monitoring polysulfides (SX2-) in marine euxinic environment (Rogoznica Lake, Croatia)
27th Croatian Meeting of Chemists and Chemical Engineers, Book of abstracts, 2021
Organska tvar, nutrijenti i metali u tragovima na granici faza slatka/morska voda u estuariju rijeke Krke
Vizija i upravljanje zaštićenim područjima prirode u Republici Hrvatskoj - Aktivna zaštita i održivo upravljanje u nacionalnom parku "Krka", 2015
Dissolved organic carbon accumulation during a bloom of invasive gelatinous zooplankton Mnemiopsis leidyi in the northern Adriatic Sea; case of the anomalous summer in 2017
Journal of Marine Systems, 2021
Rogoznica Lake (Croatia), a unique anoxic seawater system on the Adriatic coast under the anthropogenic pressures