… occurrences of cyanobacteria are recorded, this is taken as a medium burden; if the value exceeds 20 % of all valid overflights, that is taken as a high burden for the … owing to the four-year data gap, the trend analysis is of limited information value. Fluctuations in the cyanobacteria burden between the years can be attributed, … occurrences of cyanobacteria are recorded, this is taken as a medium burden; if the value exceeds 20 % of all valid overflights, that is taken as a high burden for the …

… loads of nitrogen for Europe ) provides revised and updated empirical threshold values (critical loads) for harmful nitrogen inputs to natural ecosystems. It is …

… UBA President Maria Krautzberger said: "Germany already has strict limit values for the pollutant emissions of firewood stoves compared to the rest of the …

… little owl which are typical on agricultural land: the indicator dropped to 57% in 2014 (target value for 2030: 100%). That figure was still 117% in 1975. The share of land with high nature value – species-rich grassland, fallow areas, meadow orchards – is on the decline. …