Average values along the water column of ammonium nitrogen collected in the Lake Bidighinzu

Throughfall chemistry was sampled on a biweekly basis using 10 random distributed throughfall collects (funnel) from 1992 onwards

Throughfall chemistry was sampled since 1992 using 10 random distributed collectors on a biweekly basis.

Long-term monitoring of chlorophyll-a, ammonium, dissolved total nitrogen, nitrate, nitrite and phosphate concentrations in the water column at Sozopol, Bulgaria (2013-2021).

Monitoring of chlorophyll-a, ammonium, dissolved total nitrogen, nitrate, nitrite and phosphate concentrations in the water column in Burgas Bay, Bulgaria (2009-2011).

Data for pH, SO42-, NO3-, NH4+, Cl-, K+, Na+, Ca2+, Mg2+ concentrations of bulk precipitation and throughfall, deposition of major ions and heavy metals (Pb and Cd), rainfall amount, temperature, humidity and some soil properties of the beech and spruce sample plots for 2012 year

Measurements of lake chemistry are part of lake monitoring, which is usually carried out by monthly sampling at many regular lake sites (5 to 17 sites depending on the intensity of the measurements over the years). The integrated sample represents the whole water column of this polymictic shallow lake with a mean lake depth of 1.2m. The measurement satisfy the analytical standards of Ö-Norm in Austria.