Balaton Limnological Research Institute (BLRI)

Established in 1927, the Tihany-based institute, now known as the HUN-REN Balaton Limnological Research Institute (HUN-REN BLRI), is the country's largest biological research institute with a long history, and is a key research centre for the protection of water quality and fish management in Lake Balaton. Its main task is environmental research in freshwaters. We focus on the biota of Lake Balaton and its catchment, its spatial and temporal variations, life processes, metabolic characteristics and the local and global processes, environmental factors and human impacts that affect them. The Institute also carries out basic and applied research related to the international conventions in force on the protection of aquatic habitats, biodiversity and water quality. We are actively involved in and open to further collaborations with the scientific and economic communities in the field of scientific and research development, both nationally and internationally.

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51 to 60 of 564 Results

lake_balaton_ouvf_global_concentration_ranges_literature_comparison.xlsx Apr 20, 2026 - Multi-Matrix Assessment of Organic UV-Filters in a Major Freshwater Recreational Ecosystem in Central Europe: Spatio-temporal Distribution and Environmental Risk Assessment MS Excel Spreadsheet - 17.9 KB - MD5: aa72f4d488216e06d58cf90bd1130a41 This dataset compiles reported environmental concentration ranges for selected organic UV filters (avobenzone, octocrylene, octinoxate, iscotrizinol, and ethylhexyl triazone) across different environmental matrices worldwide, providing a comparative framework for concentrations measured in Lake Balaton (Hungary). The table summarizes published fre...
lake_balaton_ouvf_kd_periphyton_water.xlsx Apr 20, 2026 - Multi-Matrix Assessment of Organic UV-Filters in a Major Freshwater Recreational Ecosystem in Central Europe: Spatio-temporal Distribution and Environmental Risk Assessment MS Excel Spreadsheet - 9.0 KB - MD5: 6e077c211a7b242d92d4201112d58520 This dataset contains calculated distribution coefficients (Kd) for five organic UV filters (avobenzone, octocrylene, octinoxate, iscotrizinol, and ethylhexyl triazone) between periphyton (freshwater biofilm) and surface water in Lake Balaton (Hungary). Kd values (L/kg dry weight) were calculated as the ratio of mean compound concentrations measur...
lake_balaton_ouvf_kd_sediment_water.xlsx Apr 20, 2026 - Multi-Matrix Assessment of Organic UV-Filters in a Major Freshwater Recreational Ecosystem in Central Europe: Spatio-temporal Distribution and Environmental Risk Assessment MS Excel Spreadsheet - 9.0 KB - MD5: f3b80a2dba08a152e4efcf769b6acfd1 This dataset contains calculated sediment–water distribution coefficients (Kd) for five organic UV filters (avobenzone, octocrylene, octinoxate, iscotrizinol, and ethylhexyl triazone) in Lake Balaton (Hungary). Kd values (L/kg dry weight) were calculated as the ratio of mean compound concentrations measured in surface sediment (ng/g d.w.) to corre...
lake_balaton_ouvf_surface_water_acute_rq_avo.xlsx Apr 20, 2026 - Multi-Matrix Assessment of Organic UV-Filters in a Major Freshwater Recreational Ecosystem in Central Europe: Spatio-temporal Distribution and Environmental Risk Assessment MS Excel Spreadsheet - 9.5 KB - MD5: a2a3a0abf496ed84ea1ba8b628853e06 This dataset contains site- and date-specific acute risk quotient (RQ_acute) values calculated for avobenzone (AVO) in surface waters of Lake Balaton (Hungary). RQ values were derived by dividing measured environmental concentrations (MEC, ng/L) by the compound-specific predicted no-effect concentration (PNEC) for freshwater organisms. The PNEC wa...
lake_balaton_ouvf_surface_water_acute_rq_dbt.xlsx Apr 20, 2026 - Multi-Matrix Assessment of Organic UV-Filters in a Major Freshwater Recreational Ecosystem in Central Europe: Spatio-temporal Distribution and Environmental Risk Assessment MS Excel Spreadsheet - 9.4 KB - MD5: cfc346c01a25dcb373e1a6db9b30fddf This dataset contains site- and date-specific acute risk quotient (RQ_acute) values calculated for iscotrizinol (DBT) in surface waters of Lake Balaton (Hungary). RQ values were derived by dividing measured environmental concentrations (MEC, ng/L) by the compound-specific predicted no-effect concentration (PNEC) for freshwater organisms. The PNEC...
lake_balaton_ouvf_surface_water_acute_rq_ehmc.xlsx Apr 20, 2026 - Multi-Matrix Assessment of Organic UV-Filters in a Major Freshwater Recreational Ecosystem in Central Europe: Spatio-temporal Distribution and Environmental Risk Assessment MS Excel Spreadsheet - 9.5 KB - MD5: 922621fe23ccc7037a0295abff2eb3d1 This dataset contains site- and date-specific acute risk quotient (RQ_acute) values calculated for octinoxate (EHMC) in surface waters of Lake Balaton (Hungary). RQ values were derived by dividing measured environmental concentrations (MEC, ng/L) by the compound-specific predicted no-effect concentration (PNEC) for freshwater organisms. The PNEC w...
lake_balaton_ouvf_surface_water_acute_rq_eht.xlsx Apr 20, 2026 - Multi-Matrix Assessment of Organic UV-Filters in a Major Freshwater Recreational Ecosystem in Central Europe: Spatio-temporal Distribution and Environmental Risk Assessment MS Excel Spreadsheet - 9.6 KB - MD5: 82e481278bb1405a741fef245c892567 This dataset contains site- and date-specific acute risk quotient (RQ_acute) values calculated for ethylhexyl triazone (EHT) in surface waters of Lake Balaton (Hungary). RQ values were calculated as the ratio of measured environmental concentrations (MEC, ng/L) to the compound-specific predicted no-effect concentration (PNEC) derived from acute ec...
lake_balaton_ouvf_surface_water_acute_rq_oc.xlsx Apr 20, 2026 - Multi-Matrix Assessment of Organic UV-Filters in a Major Freshwater Recreational Ecosystem in Central Europe: Spatio-temporal Distribution and Environmental Risk Assessment MS Excel Spreadsheet - 9.6 KB - MD5: d098cafa9c9b8f0abe7791669110f32c This dataset contains site- and date-specific acute risk quotient (RQ_acute) values calculated for octocrylene (OC) in surface waters of Lake Balaton (Hungary). RQ values were derived as the ratio of measured environmental concentrations (MEC, ng/L) to the compound-specific predicted no-effect concentration (PNEC) for freshwater organisms. The PNE...
lake_balaton_ouvf_surface_water_acute_tumix.xlsx Apr 20, 2026 - Multi-Matrix Assessment of Organic UV-Filters in a Major Freshwater Recreational Ecosystem in Central Europe: Spatio-temporal Distribution and Environmental Risk Assessment MS Excel Spreadsheet - 9.3 KB - MD5: 3f9a7cffaf568cdf620f38d2fae3e56d This dataset contains site- and date-specific mixture toxicity indices (TU_mix) calculated for five organic UV-filters (AVO, OC, EHMC, DBT, EHT) measured in surface waters of Lake Balaton (Hungary). TU_mix values were calculated using the concentration addition (CA) model, where individual toxic units (TU_i = MEC_i / EC₅₀_i) were summed across com...
lake_balaton_ouvf_surface_water_spatiotemporal_heatmap.tif Apr 20, 2026 - Multi-Matrix Assessment of Organic UV-Filters in a Major Freshwater Recreational Ecosystem in Central Europe: Spatio-temporal Distribution and Environmental Risk Assessment TIFF Image - 905.8 KB - MD5: b9ec6b7acd10475ea6de1304f1d22d2b This figure presents a detailed spatiotemporal heatmap illustrating concentrations of five organic UV-filters (AVO, OC, EHMC, DBT, EHT) measured in surface waters of Lake Balaton (Hungary). The heatmap displays concentration values (ng/L) across 17 shoreline sampling sites and five discrete sampling campaigns, enabling simultaneous visualization o...

lake_balaton_ouvf_global_concentration_ranges_literature_comparison.xlsx

Apr 20, 2026 - Multi-Matrix Assessment of Organic UV-Filters in a Major Freshwater Recreational Ecosystem in Central Europe: Spatio-temporal Distribution and Environmental Risk Assessment

MS Excel Spreadsheet - 17.9 KB -

This dataset compiles reported environmental concentration ranges for selected organic UV filters (avobenzone, octocrylene, octinoxate, iscotrizinol, and ethylhexyl triazone) across different environmental matrices worldwide, providing a comparative framework for concentrations measured in Lake Balaton (Hungary). The table summarizes published fre...

lake_balaton_ouvf_kd_periphyton_water.xlsx

Apr 20, 2026 - Multi-Matrix Assessment of Organic UV-Filters in a Major Freshwater Recreational Ecosystem in Central Europe: Spatio-temporal Distribution and Environmental Risk Assessment

MS Excel Spreadsheet - 9.0 KB -

This dataset contains calculated distribution coefficients (Kd) for five organic UV filters (avobenzone, octocrylene, octinoxate, iscotrizinol, and ethylhexyl triazone) between periphyton (freshwater biofilm) and surface water in Lake Balaton (Hungary). Kd values (L/kg dry weight) were calculated as the ratio of mean compound concentrations measur...

lake_balaton_ouvf_kd_sediment_water.xlsx

Apr 20, 2026 - Multi-Matrix Assessment of Organic UV-Filters in a Major Freshwater Recreational Ecosystem in Central Europe: Spatio-temporal Distribution and Environmental Risk Assessment

MS Excel Spreadsheet - 9.0 KB -

This dataset contains calculated sediment–water distribution coefficients (Kd) for five organic UV filters (avobenzone, octocrylene, octinoxate, iscotrizinol, and ethylhexyl triazone) in Lake Balaton (Hungary). Kd values (L/kg dry weight) were calculated as the ratio of mean compound concentrations measured in surface sediment (ng/g d.w.) to corre...

lake_balaton_ouvf_surface_water_acute_rq_avo.xlsx

Apr 20, 2026 - Multi-Matrix Assessment of Organic UV-Filters in a Major Freshwater Recreational Ecosystem in Central Europe: Spatio-temporal Distribution and Environmental Risk Assessment

MS Excel Spreadsheet - 9.5 KB -

This dataset contains site- and date-specific acute risk quotient (RQ_acute) values calculated for avobenzone (AVO) in surface waters of Lake Balaton (Hungary). RQ values were derived by dividing measured environmental concentrations (MEC, ng/L) by the compound-specific predicted no-effect concentration (PNEC) for freshwater organisms. The PNEC wa...

lake_balaton_ouvf_surface_water_acute_rq_dbt.xlsx

Apr 20, 2026 - Multi-Matrix Assessment of Organic UV-Filters in a Major Freshwater Recreational Ecosystem in Central Europe: Spatio-temporal Distribution and Environmental Risk Assessment

MS Excel Spreadsheet - 9.4 KB -

This dataset contains site- and date-specific acute risk quotient (RQ_acute) values calculated for iscotrizinol (DBT) in surface waters of Lake Balaton (Hungary). RQ values were derived by dividing measured environmental concentrations (MEC, ng/L) by the compound-specific predicted no-effect concentration (PNEC) for freshwater organisms. The PNEC...

lake_balaton_ouvf_surface_water_acute_rq_ehmc.xlsx

Apr 20, 2026 - Multi-Matrix Assessment of Organic UV-Filters in a Major Freshwater Recreational Ecosystem in Central Europe: Spatio-temporal Distribution and Environmental Risk Assessment

MS Excel Spreadsheet - 9.5 KB -

This dataset contains site- and date-specific acute risk quotient (RQ_acute) values calculated for octinoxate (EHMC) in surface waters of Lake Balaton (Hungary). RQ values were derived by dividing measured environmental concentrations (MEC, ng/L) by the compound-specific predicted no-effect concentration (PNEC) for freshwater organisms. The PNEC w...

lake_balaton_ouvf_surface_water_acute_rq_eht.xlsx

Apr 20, 2026 - Multi-Matrix Assessment of Organic UV-Filters in a Major Freshwater Recreational Ecosystem in Central Europe: Spatio-temporal Distribution and Environmental Risk Assessment

MS Excel Spreadsheet - 9.6 KB -

This dataset contains site- and date-specific acute risk quotient (RQ_acute) values calculated for ethylhexyl triazone (EHT) in surface waters of Lake Balaton (Hungary). RQ values were calculated as the ratio of measured environmental concentrations (MEC, ng/L) to the compound-specific predicted no-effect concentration (PNEC) derived from acute ec...

lake_balaton_ouvf_surface_water_acute_rq_oc.xlsx

Apr 20, 2026 - Multi-Matrix Assessment of Organic UV-Filters in a Major Freshwater Recreational Ecosystem in Central Europe: Spatio-temporal Distribution and Environmental Risk Assessment

MS Excel Spreadsheet - 9.6 KB -

This dataset contains site- and date-specific acute risk quotient (RQ_acute) values calculated for octocrylene (OC) in surface waters of Lake Balaton (Hungary). RQ values were derived as the ratio of measured environmental concentrations (MEC, ng/L) to the compound-specific predicted no-effect concentration (PNEC) for freshwater organisms. The PNE...

lake_balaton_ouvf_surface_water_acute_tumix.xlsx

Apr 20, 2026 - Multi-Matrix Assessment of Organic UV-Filters in a Major Freshwater Recreational Ecosystem in Central Europe: Spatio-temporal Distribution and Environmental Risk Assessment

MS Excel Spreadsheet - 9.3 KB -

This dataset contains site- and date-specific mixture toxicity indices (TU_mix) calculated for five organic UV-filters (AVO, OC, EHMC, DBT, EHT) measured in surface waters of Lake Balaton (Hungary). TU_mix values were calculated using the concentration addition (CA) model, where individual toxic units (TU_i = MEC_i / EC₅₀_i) were summed across com...

lake_balaton_ouvf_surface_water_spatiotemporal_heatmap.tif

Apr 20, 2026 - Multi-Matrix Assessment of Organic UV-Filters in a Major Freshwater Recreational Ecosystem in Central Europe: Spatio-temporal Distribution and Environmental Risk Assessment

TIFF Image - 905.8 KB -

This figure presents a detailed spatiotemporal heatmap illustrating concentrations of five organic UV-filters (AVO, OC, EHMC, DBT, EHT) measured in surface waters of Lake Balaton (Hungary). The heatmap displays concentration values (ng/L) across 17 shoreline sampling sites and five discrete sampling campaigns, enabling simultaneous visualization o...

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