Water resources: waste, human activity and environmental problems

By:

Uxía Gómez NoyaAna Carreira Casais

Unai de Larrinaga RomeroAlberto Quinteiro Torres

Year: 2013 – 2014

Grade: 3º ESO D

The water The water is an essential component of every

alive being. It is the most necessary substance for the life.

Causes of contamination of water

Industry: -Construction, energy, texture and leather, pasta and paper

Causes of contamination of water

Urban spillages:

Causes of contamination of water

Agriculture and cattle: In agriculture the crops are fertilizated with inorganic fertilizants. The rain sweep away part of that products to the rivers.

Causes of contamination of water

Navigation:

Causes of contamination of water

Radioactive pollution:

Interesting facts According to a study of the Technical University of

Catalonia, the big oil tankers spill to the sea Mediterranean, in the Catalan zone inhabitant of the Balearic Islands, approximately 2.000 tons per year of hydrocarbons, for the most part in furtive tasks of cleanliness in high seas. For an oil tanker it is much cheaper to clean his tanks out of port.

Ways to prevent the pollution of water

To take care of the vegetation of the high plateaus and head-boards of the rivers, avoiding the felling of the forests.

To protect the water sources, not throwing garbage or faecal residues in them.

To construct lavatories and septic wells. To construct plants of treatment of waste water. To realize educational campaigns to achieve

positive attitudes towards the conservation of the water.

Prestige The ship Prestige which was transporting a load

of 77.000 tons of fuel oil, split in two and sank opposite to the coasts of Galicia up to a depth of 3.500 meters, spilling its content to the sea.

Fukushima As consequence of this earthquake it was

produced a tsunami that caused the nuclear accident in Fukushima (Japan).

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