Showing 811 - 815 of 815
For many years now, nitrate concentrations have exceeded the trigger value of 50 milligrams per liter at nearly one-fifth of the groundwater sampling sites in Germany. Apart from impairing the ecosystem by, for example, causing eutrophication of water bodies, nitrate-polluted drinking water also...
Persistent link: https://www.econbiz.de/10012175779
Seit vielen Jahren übersteigt die Nitratbelastung an knapp einem Fünftel der Grundwasser-Messstellen in Deutschland den Grenzwert von 50 Milligramm pro Liter. Neben der Beeinträchtigung des Ökosystems, zum Beispiel durch Eutrophierung von Gewässern, schädigt nitratbelastetes Trinkwasser...
Persistent link: https://www.econbiz.de/10012175792
Persistent link: https://www.econbiz.de/10012198336
At just 4.4 percent, the contribution made by nuclear power to meeting the world’s primary energy requirements is marginal and on the decline. The current nuclear power fleet is outdated with around 200 plants due to be phased out over the next ten years compared to as few as 46 new nuclear...
Persistent link: https://www.econbiz.de/10012198124
This open access textbook provides a concise introduction to economic approaches and mathematical methods for the study of water allocation and distribution problems. Written in an accessible and straightforward style, it discusses and analyzes central issues in integrated water resource...
Persistent link: https://www.econbiz.de/10012252340