The Institute of Hydrology of the Leibniz Centre for Agricultural Landscape Research (ZALF) e.V. operates four groundwater monitoring wells in the Quillow catchment. The wells are located in the neighborhood of Dedelow near the stream Quillow and its tributary Peege. Altitude in meter: between 64 and 74 m a.s.l., Geographic latitude: 53,3665 N, Geographic longitude: 13,8030 E. Water samples are collected periodically at different dates in a year and at different depths. Each sample was analysed in the own hydrochemical laboratory where the parameters pH value, redox potential, electric conductivity, water temperature, oxygen, hydrogen carbonate, ammonium, phosphate, spectral absorption coefficient, chloride, bromite, nitrite, sulfate, sodium, potassium, magnesium, calcite, dissolved organic carbon, iron(II) and manganese were determined.

Dataset provides information about Total alkalinity (T.Alk. in meq l-1)in Lake Paione Inferiore (LPI) at different layer depths along the water column, at least twice per year (late summer/autumn) during the period 1984-2013. In total 272 records of total alkalinity recorded in LPI for the period are uploaded. Lake Paione Inferiore is a high altitude Alpine lake, located at 2002 m a.s.l. in the Bognanco Valley, Province of Verbania, Piedmont Region, Italy. The Lake has a surface area of 0.86 ha and a maximum depth of 13.5 m. and it is included in the monitoring sites of the UN-ECE Program ICP WATERS (International Cooperative Programme on Assessment and Monitoring of Acidification of Rivers and Lakes)

Dataset provides information about reactive silica (in mg Si L-1) in Lake Paione Inferiore (LPI) at different layer depths along the water column within the period 2014-2020. Data are at least biannual (late summer/autumn). In total 47 records of reactive silica in the Lake for the period are uploaded. The range is from 0.065 to 1.39 mg Si L-1 (±0.153). Lake Paione Inferiore is a high altitude Alpine lake, located in the Bognanco Valley, Province of Verbania, Piedmont Region, Italy. It has a surface area of 0.86 ha and a maximum depth of 13.5 m. The lake is included in the monitoring sites of the UN-ECE Program ICP WATERS (International Cooperative Programme on Assessment and Monitoring of Acidification of Rivers and Lakes) and in the NEC-Italy network. It is also a research site of the LIFE MODERn NEC Project (LIFE20 GIE/IT/000091).

Dataset provides Total Nitrogen (TN in mg L-1) in Lake Paione Inferiore (LPI) at different layer depths measured at least twice per year (late summer/autumn) during the period 1989-2013. Data for the period 1995-1999 and for 1993 are missing

Dataset provides information about reactive silica (in mg Si L-1) in Lake Paione Superiore (LPS) at different layer depths along the water column within the period 1984-2013. Data are at least biannual (late summer/autumn). In total 283 records of reactive silica in the Lake for the period are uploaded. The range is from 0.14 to 0.82 mg Si L-1 (±0.105). Lake Paione Superiore is a high altitude Alpine lake, located in the Bognanco Valley, Piedmont Region, Italy. It has a surface area of 0.68 ha and a maximum depth of 11.5 m. The Lake is included in the monitoring sites of the UN-ECE Program ICP WATERS (International Cooperative Programme on Assessment and Monitoring of Acidification of Rivers and Lakes)

Dataset provides information about Total alkalinity (T.Alk. in meq l-1)in Lake Paione Inferiore (LPI) at different layer depths along the water column, at least twice per year (late summer/autumn) during the period 2014-2020. In total 47 records of total alkalinity recorded in LPI for the period are uploaded. Lake Paione Inferiore is a high altitude Alpine lake, located at 2002 m a.s.l. in the Bognanco Valley, Province of Verbania, Piedmont Region, Italy. The Lake has a surface area of 0.86 ha and a maximum depth of 13.5 m. The lake is included in the monitoring sites of the UN-ECE Program ICP WATERS (International Cooperative Programme on Assessment and Monitoring of Acidification of Rivers and Lakes) and in the NEC-Italy network. It is also a research site of the LIFE MODERn NEC Project (LIFE20 GIE/IT/000091).

Dataset provides Total Nitrogen (TN in mg L-1) in Lake Paione Inferiore (LPI) at different layer depths measured at least twice per year (late summer/autumn) during the period 2014-2020. The lake is included in the monitoring sites of the UN-ECE Program ICP WATERS (International Cooperative Programme on Assessment and Monitoring of Acidification of Rivers and Lakes) and in the NEC-Italy network. It is also a research site of the LIFE MODERn NEC Project (LIFE20 GIE/IT/000091).

Dataset provides information about conductivity determined at 20°C (in µS cm-1) in Lake Paione Superiore(LPS) at different layer depths collected at least twice per year(late summer/autumn) during the period 1984-2013. In total 283 records of conductivity in LPS for the period 1984-2013 are uploaded. The range of the parameter is from 5,44 to 16,69 µS cm-1(±1,62). The ongoing studies of the water chemistry of Paione lakes aimed at monitoring their recovery from acidification and/or possible responses to climate warming. The Paione lakes (Inferiore and Superiore) are an example of acid-sensitive environments which began in the 1990s to show signs of recovery, with an improvement in pH values and alkalinity and a decrease in sulphate concentrations in response to atmospheric loads.

Toxic cyanobacterial blooms constitute a common problem at the global scale. The aim of the project, was to assess fish biomass and their spatial-temporal distribution patterns in the Sulejów Reservoir in relation to cyanobacterial blooms. Additionally the spatial and temporal dynamics of physical variables, inorganic nutrients, zooplankton and phytoplankton chlorophyll a were collected to help understanding which factors are controlling the development of the bloom and determine fish behavior.

Dataset provides Total Nitrogen (TN in mg L-1) in Lake Paione Superiore (LPS) at different layer depths measured at least twice per year (late summer/autumn) during the period 1989-2013. Data for the period 1993-1999 are missing. In total 100 records of Total Nitrogen recorded in the Lake are uploaded. Total Nitrogen varied from 0.22 to 0.68 mg TN L-1 (± 0,07) within the period 1989-2013.