Water

Water is not an ordinary commodity, but rather a heritage that must be preserved, protected and treated as such. The mission of the Water Department of the Environmental Board is to stand for the good condition of water bodies and groundwater without living in debt to its children.

Water (H2O) is one of the most abundant substances on Earth and in the universe, ranking third after hydrogen (H2) and carbon monoxide (CO). Water is normally liquid because the polar molecules of water form hydrogen bonds with each other. The presence of hydrogen bonds makes it more difficult to separate the water molecules from each other and thus raises the melting and boiling point of the water.

In solid form, water is ice. Ice has a crystalline structure and gaps in its crystal lattice, which means that the density of ice is lower than that of liquid still. Water can be found almost all over the Earth and is needed by all known living organisms, which are largely made up of water, some aquatic organisms up to 99%.

Water covers about 70% of the Earth's surface, in constant circulation. Water is one of the most common and best solvents, it dissolves very many gaseous, liquid and solid substances. Most processes in wildlife take place in the presence of substances dissolved in the aquatic environment. Aqueous solutions, for example, participate in metabolic processes, and as aqueous solutions, plants also absorb nutrients from the soil.

A small piece of ice floats in the water, to which the spring scent adds a breath of spring. Photo: Toomas Padjus

The Environmental Board is responsible for the quality of water bodies and groundwater through the following tasks:

  • Giving an opinion on the initiation of a right of superficies procedure
  • Coordination of restrictions on public use of a body of water or part thereof used in public
  • Coordination of the application for the design conditions of the dam construction and the design conditions
  • Coordination of the detailed plan for determining the minimum required service area of the shoreline
Pärnu Bay. Photo: Elina Leiner

Last updated: 25.06.2021