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Transcript of Water Pollution
Pollution in Costa Rica
Virrilla and Tárcoles Rivers
Thirsty Cities: Urban Environments and Water Supply in Latin America (1993)
Thesis: Masis, 2004; Gutierrez, 2007
Water Polluting Companies in Costa Rica
Daniel Arce Madrigal (B20501)
Diego González Cascante (A62512)
Daniela Hidalgo Bonilla (B13338)
Francella Rodríguez Calderón (B15521)
Katherine Torres Ruiz (B26681)
What Is Water Pollution?
Water pollution occurs when a body of water is affected due to the addition of large amounts of materials to the water.
Types of Pollution
Causes of Water Pollution
Effects of Water Pollution
•Sewage from domestic households, factories and commercial buildings.
•Dumping solid wastes and littering by humans in rivers.
•Industrial waste from factories.
•Burning fossil fuels into the air.
Reproductive damage within wildlife in ecosystems.
The depletion of oxygen
skin rashes, cancer, reproductive problems, typhoid fever and stomach sickness in humans.
Fish are easily poisoned with metals that are also later consumed by humans.
Ecosystems are destroyed by the rising temperature in the water
Animals caught and killed from suffocation.
Laws in force
Regulation of landfill and wastewater reuse (Decree 33601-S-MINAE) and Regulation of adoption and operation of wastewater treatment systems (Decree 31545-S-MINAE)
Organic Law of the Environment, Law 7554 (October 4 1995)
Water Law, Law 276 of the August 27 1942 and its reforms.
Los Negritos Ravine
The main pollutants in these rivers are sewage waste, for example detergents.
The presence of fecal coli forms (bacteria in feces only) in fruits and vegetables which have been irrigated with water from these rivers.
Another reason for pollution in these places is the closeness to big industries.
A large majority of industries had not a treatment plant.
The surrounding houses use this river as a garbage dump.
UCR is not responsible for the pollution in this river.
Faculty of Microbiology at the University of Costa Rica and interviewed Microbiologist Maria Laura Arias.
Sewage (fecal pollution) and industrial wastes (chemicals).
Faculty of Microbiology forced the University to place a collector of chemicals to avoid polluting.
Environmental protection campaigns are intermittent.
Tips for Water Conservation
1) Turn off the tap when running water is not necessary.
2) Be careful about what throw down your sink or toilet.
3) Use environmentally household products.
4) Take great care not to overuse pesticides and fertilizers.
5) Have more plants in your garden.
6) Don't throw litter into rivers, lakes or oceans.
Water Protection Campaigns
In Costa Rica there have been many campaigns trying to protect create conscience about the importance of the water
ICE won some awards for its efforts in saving water and the installation of treatment plants of wastewater.
They are mostly from international groups such as Greenpeace, WWF, and the Blue Flag Ecological Program
Water Supply and Sanitation
96% of all urban wastewater collected is discharged into rivers and receiving bodies without treatment.
The Ministry of Health and the Ministry of Environment, Energy and Telecommunications are the responsible for water and sanitation.
they operate only 240 small water systems, reaching inly 17% of the population, while most of the population is provided by AyA (46%) and Administrative Commitees of Rural Water System (26%) .