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Papers by Lina Lagunavičienė
Polish Journal of Environmental Studies, 2012
Samples of surface bottom sediments were taken at 82 stations in Lithuania's Klaipeda harbour in ... more Samples of surface bottom sediments were taken at 82 stations in Lithuania's Klaipeda harbour in 2008-09. Sediment parameters such as the percentages of particles and the concentrations of organic carbon and heavy metals (Cu, Zn, Ni, Pb, Cr, Cd, and Hg) were determined. The heavy metal contamination of harbor sediments was established by calculating Nemerov's pollution index applied to soil. The spatial structure of the obtained data and the factors responsible for sediment distribution and contamination patterns were analyzed in order to evaluate the changes that have occurred since 1998 in the sedimentation conditions, the level of heavy metal contamination, and the structure of the contaminants.
Geologija, 2008
The article deals with the distribution of metals (Me) Cr, Pb, Cd, Ni, Cu, Zn, Hg, V, Al and the ... more The article deals with the distribution of metals (Me) Cr, Pb, Cd, Ni, Cu, Zn, Hg, V, Al and the causality of their spatial dynamics in the bottom sediments of Šventoji Port waters. Areas of highest geochemical anomalies where Me / Al values exceed the calculated background values 1.1 times were distinguished in the zones of marine sand, alluvium and thindispersed material of sedimentation by the method of aluminium normalization. The highest load of all metals, except Cd, falls on the area of the branch to the Eastern basin in the zone of alluvial sedimentation and the sedimentation zone of thindispersed material in the Eastern basin.
Journal of Environmental Engineering and Landscape Management, Nov 22, 2012
The present paper reports the results obtained by investigation of surface bottom sediment contam... more The present paper reports the results obtained by investigation of surface bottom sediment contamination with Cu, Zn, Ni, Pb, Cr, Cd, Hg in three largest semi-closed bays of Klaipėda Port in 2008 and 2009. The concentrations of heavy metals and organic carbon same as the percentages of 6 granular fractions were determined at 41 stations. The contamination level was established by calculating the Nemerov's pollution index. The major factors responsible for sediment contamination with heavy metals and distribution patterns of discrete pollutants and different pollution areas were determined. By comparison of the obtained results with the results of 1998, the changes of sediment contamination with heavy metals in the last ten years were evaluated. It was determined that bottom sediments not contaminated with heavy metals are dominant in the semi-closed bays of Klaipėda port. Heavy contamination with nickel, and moderate contamination with zinc and copper only occur in small areas.
Geological Quarterly, 2012
Sed i men tary en vi ron ment changes dur ing the Early-Mid dle Pleis to cene tran si tion as re ... more Sed i men tary en vi ron ment changes dur ing the Early-Mid dle Pleis to cene tran si tion as re corded by the Daumantai sec tions in Lith u a nia. Geo log i cal Quar terly, 57 (1): 45-60, doi: 10.7306/gq.1076. Two sec tions (Daumantai-1 and Daumantai-3) in East Lith u a nia ex pose Early-Mid dle Pleis to cene lac us trine-al lu vial, de posits which lie on a thin Neo gene layer and on older De vo nian rocks. They are over lain by glacigenic de pos its. Geo chem i cal, palaeomagnetic, mag netic sus cep ti bil ity, plant macrofossil, and di a tom in ves ti ga tions were per formed to de ter mine the changes in the sed i men tary en vi ron ment. Clus ter anal y sis of the geo chem i cal vari ables (10 ma jor el e ments, 16 trace el ements, to tal or ganic and in or ganic car bon) re vealed the el e ment groups and fac tors. The low er most units are char ac ter ized by a ma jor in flu ence of lo cal ma te rial and sig nif i cant fluc tu a tions in heavy min eral con tent. These fluc tu a tions might re flect short-term cli mate changes. The tran si tional units have more ex pressed trends, es pe cially as re gards the trace el e ments and Zr/Ti. The up per most units are char ac ter ized by a slight in flu ence of lo cal ma te rial and small fluc tu a tions in trace el ements. The data ana lysed en able the sub di vi sion of the sec tion into units re lated to changes in sed i men tary en vi ron ment. The bound ary of the Bruhnes/Matuyama re ver sal in the Daumantai-1 and Dauma ntai-3 sec tions was de tected by palaeomagnetic stud ies and en ables the strati graphi cal cor re la tion of these de pos its.
Geological Quarterly, 2012
Sed i men tary en vi ron ment changes dur ing the Early-Mid dle Pleis to cene tran si tion as re ... more Sed i men tary en vi ron ment changes dur ing the Early-Mid dle Pleis to cene tran si tion as re corded by the Daumantai sec tions in Lith u a nia. Geo log i cal Quar terly, 57 (1): 45-60, doi: 10.7306/gq.1076. Two sec tions (Daumantai-1 and Daumantai-3) in East Lith u a nia ex pose Early-Mid dle Pleis to cene lac us trine-al lu vial, de posits which lie on a thin Neo gene layer and on older De vo nian rocks. They are over lain by glacigenic de pos its. Geo chem i cal, palaeomagnetic, mag netic sus cep ti bil ity, plant macrofossil, and di a tom in ves ti ga tions were per formed to de ter mine the changes in the sed i men tary en vi ron ment. Clus ter anal y sis of the geo chem i cal vari ables (10 ma jor el e ments, 16 trace el ements, to tal or ganic and in or ganic car bon) re vealed the el e ment groups and fac tors. The low er most units are char ac ter ized by a ma jor in flu ence of lo cal ma te rial and sig nif i cant fluc tu a tions in heavy min eral con tent. These fluc tu a tions might re flect short-term cli mate changes. The tran si tional units have more ex pressed trends, es pe cially as re gards the trace el e ments and Zr/Ti. The up per most units are char ac ter ized by a slight in flu ence of lo cal ma te rial and small fluc tu a tions in trace el ements. The data ana lysed en able the sub di vi sion of the sec tion into units re lated to changes in sed i men tary en vi ron ment. The bound ary of the Bruhnes/Matuyama re ver sal in the Daumantai-1 and Dauma ntai-3 sec tions was de tected by palaeomagnetic stud ies and en ables the strati graphi cal cor re la tion of these de pos its.
Journal of Environmental Engineering and Landscape Management, 2012
The aim of the work is to research and sum up pollution of surface bottom sediments with hydrocar... more The aim of the work is to research and sum up pollution of surface bottom sediments with hydrocarbons and heavy metals Cr, Pb, V, Ni, Cu, Zn and Hg in Šventoji Port, Lithuania. It is determined that concentration of pollutants depends mainly on the granular and material composition of bottom sediments, the distance from the sources of pollution and sedimentation patterns in the barrier zone fresh–saline water. The greatest area (33.2%) of bottom sediments in the Šventoji Port 7.75 ha basin is polluted with hydrocarbons. The most highly polluted is the sand in the Šventoji River sector in front of its mouth (0.047 ha) where the maximal permissible concentration (MPC) value for sand is exceeded by 21.3 times. Certain areas of surface bottom sediments in the Šventoji Port basin are polluted with heavy metals Pb (0.054 ha), Ni (0.19 ha), Cu (0.19 ha) and Zn. (0.36 ha).
Journal of Environmental Engineering and Landscape Management, 2012
Journal of Environmental Engineering and Landscape Management, 2012
Journal of Environmental Engineering and Landscape Management, 2012
Polish Journal of Environmental Studies, 2012
Samples of surface bottom sediments were taken at 82 stations in Lithuania's Klaipeda harbour in ... more Samples of surface bottom sediments were taken at 82 stations in Lithuania's Klaipeda harbour in 2008-09. Sediment parameters such as the percentages of particles and the concentrations of organic carbon and heavy metals (Cu, Zn, Ni, Pb, Cr, Cd, and Hg) were determined. The heavy metal contamination of harbor sediments was established by calculating Nemerov's pollution index applied to soil. The spatial structure of the obtained data and the factors responsible for sediment distribution and contamination patterns were analyzed in order to evaluate the changes that have occurred since 1998 in the sedimentation conditions, the level of heavy metal contamination, and the structure of the contaminants.
Geologija, 2008
The article deals with the distribution of metals (Me) Cr, Pb, Cd, Ni, Cu, Zn, Hg, V, Al and the ... more The article deals with the distribution of metals (Me) Cr, Pb, Cd, Ni, Cu, Zn, Hg, V, Al and the causality of their spatial dynamics in the bottom sediments of Šventoji Port waters. Areas of highest geochemical anomalies where Me / Al values exceed the calculated background values 1.1 times were distinguished in the zones of marine sand, alluvium and thindispersed material of sedimentation by the method of aluminium normalization. The highest load of all metals, except Cd, falls on the area of the branch to the Eastern basin in the zone of alluvial sedimentation and the sedimentation zone of thindispersed material in the Eastern basin.
Journal of Environmental Engineering and Landscape Management, Nov 22, 2012
The present paper reports the results obtained by investigation of surface bottom sediment contam... more The present paper reports the results obtained by investigation of surface bottom sediment contamination with Cu, Zn, Ni, Pb, Cr, Cd, Hg in three largest semi-closed bays of Klaipėda Port in 2008 and 2009. The concentrations of heavy metals and organic carbon same as the percentages of 6 granular fractions were determined at 41 stations. The contamination level was established by calculating the Nemerov's pollution index. The major factors responsible for sediment contamination with heavy metals and distribution patterns of discrete pollutants and different pollution areas were determined. By comparison of the obtained results with the results of 1998, the changes of sediment contamination with heavy metals in the last ten years were evaluated. It was determined that bottom sediments not contaminated with heavy metals are dominant in the semi-closed bays of Klaipėda port. Heavy contamination with nickel, and moderate contamination with zinc and copper only occur in small areas.
Geological Quarterly, 2012
Sed i men tary en vi ron ment changes dur ing the Early-Mid dle Pleis to cene tran si tion as re ... more Sed i men tary en vi ron ment changes dur ing the Early-Mid dle Pleis to cene tran si tion as re corded by the Daumantai sec tions in Lith u a nia. Geo log i cal Quar terly, 57 (1): 45-60, doi: 10.7306/gq.1076. Two sec tions (Daumantai-1 and Daumantai-3) in East Lith u a nia ex pose Early-Mid dle Pleis to cene lac us trine-al lu vial, de posits which lie on a thin Neo gene layer and on older De vo nian rocks. They are over lain by glacigenic de pos its. Geo chem i cal, palaeomagnetic, mag netic sus cep ti bil ity, plant macrofossil, and di a tom in ves ti ga tions were per formed to de ter mine the changes in the sed i men tary en vi ron ment. Clus ter anal y sis of the geo chem i cal vari ables (10 ma jor el e ments, 16 trace el ements, to tal or ganic and in or ganic car bon) re vealed the el e ment groups and fac tors. The low er most units are char ac ter ized by a ma jor in flu ence of lo cal ma te rial and sig nif i cant fluc tu a tions in heavy min eral con tent. These fluc tu a tions might re flect short-term cli mate changes. The tran si tional units have more ex pressed trends, es pe cially as re gards the trace el e ments and Zr/Ti. The up per most units are char ac ter ized by a slight in flu ence of lo cal ma te rial and small fluc tu a tions in trace el ements. The data ana lysed en able the sub di vi sion of the sec tion into units re lated to changes in sed i men tary en vi ron ment. The bound ary of the Bruhnes/Matuyama re ver sal in the Daumantai-1 and Dauma ntai-3 sec tions was de tected by palaeomagnetic stud ies and en ables the strati graphi cal cor re la tion of these de pos its.
Geological Quarterly, 2012
Sed i men tary en vi ron ment changes dur ing the Early-Mid dle Pleis to cene tran si tion as re ... more Sed i men tary en vi ron ment changes dur ing the Early-Mid dle Pleis to cene tran si tion as re corded by the Daumantai sec tions in Lith u a nia. Geo log i cal Quar terly, 57 (1): 45-60, doi: 10.7306/gq.1076. Two sec tions (Daumantai-1 and Daumantai-3) in East Lith u a nia ex pose Early-Mid dle Pleis to cene lac us trine-al lu vial, de posits which lie on a thin Neo gene layer and on older De vo nian rocks. They are over lain by glacigenic de pos its. Geo chem i cal, palaeomagnetic, mag netic sus cep ti bil ity, plant macrofossil, and di a tom in ves ti ga tions were per formed to de ter mine the changes in the sed i men tary en vi ron ment. Clus ter anal y sis of the geo chem i cal vari ables (10 ma jor el e ments, 16 trace el ements, to tal or ganic and in or ganic car bon) re vealed the el e ment groups and fac tors. The low er most units are char ac ter ized by a ma jor in flu ence of lo cal ma te rial and sig nif i cant fluc tu a tions in heavy min eral con tent. These fluc tu a tions might re flect short-term cli mate changes. The tran si tional units have more ex pressed trends, es pe cially as re gards the trace el e ments and Zr/Ti. The up per most units are char ac ter ized by a slight in flu ence of lo cal ma te rial and small fluc tu a tions in trace el ements. The data ana lysed en able the sub di vi sion of the sec tion into units re lated to changes in sed i men tary en vi ron ment. The bound ary of the Bruhnes/Matuyama re ver sal in the Daumantai-1 and Dauma ntai-3 sec tions was de tected by palaeomagnetic stud ies and en ables the strati graphi cal cor re la tion of these de pos its.
Journal of Environmental Engineering and Landscape Management, 2012
The aim of the work is to research and sum up pollution of surface bottom sediments with hydrocar... more The aim of the work is to research and sum up pollution of surface bottom sediments with hydrocarbons and heavy metals Cr, Pb, V, Ni, Cu, Zn and Hg in Šventoji Port, Lithuania. It is determined that concentration of pollutants depends mainly on the granular and material composition of bottom sediments, the distance from the sources of pollution and sedimentation patterns in the barrier zone fresh–saline water. The greatest area (33.2%) of bottom sediments in the Šventoji Port 7.75 ha basin is polluted with hydrocarbons. The most highly polluted is the sand in the Šventoji River sector in front of its mouth (0.047 ha) where the maximal permissible concentration (MPC) value for sand is exceeded by 21.3 times. Certain areas of surface bottom sediments in the Šventoji Port basin are polluted with heavy metals Pb (0.054 ha), Ni (0.19 ha), Cu (0.19 ha) and Zn. (0.36 ha).
Journal of Environmental Engineering and Landscape Management, 2012
Journal of Environmental Engineering and Landscape Management, 2012
Journal of Environmental Engineering and Landscape Management, 2012