because in the womb we are nine months surrounded by water.
«Paulo Coelho»
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Презентация, доклад на тему Детская работа Causes and effects of water pollution, 11 класс
Содержание
- 1. Детская работа Causes and effects of water pollution, 11 класс
- 2. Introduction:Water features are a critical environmental component
- 3. The main pollution:The main sources of pollution
- 4. The impact of water pollution on living
- 5. Genotoxicitythe effects of heavy metals and other
- 6. Impaired energy metabolism:Pollutants, affecting the mitochondria, lead
- 7. Diseases caused by dirty waterEnvironmental problems, pollution
- 8. We hope you are imbued with the seriousness of the problem and help keep water clean.
- 9. Слайд 9
Introduction:Water features are a critical environmental component of society, which determines its social, environmental and economic well-beingFor a long time the problem of water pollution was not sharp for most countries. Available resources are enough to
Слайд 2Introduction:
Water features are a critical environmental component of society, which determines
its social, environmental and economic well-being
For a long time the problem of water pollution was not sharp for most countries. Available resources are enough to meet the needs of the local population. The growth of industry, increasing the amount of water used is radically changed. Now its cleaning and conservation of quality do at the international level.
For a long time the problem of water pollution was not sharp for most countries. Available resources are enough to meet the needs of the local population. The growth of industry, increasing the amount of water used is radically changed. Now its cleaning and conservation of quality do at the international level.
Слайд 3The main pollution:
The main sources of pollution of surface water bodies
are industrial enterprises and enterprises of housing and communal services, carrying out the discharge of waste waters with content of pollutants exceeding maximum permissible concentrations.
In surface water bodies in 2012 dropped 547,8 million m3. Of them contaminated wastewater – 32.61 million m3, decreased in 2011 to 7.09 million m3 (17,8%).
In surface water bodies in 2012 dropped 547,8 million m3. Of them contaminated wastewater – 32.61 million m3, decreased in 2011 to 7.09 million m3 (17,8%).
Слайд 4The impact of water pollution on living organisms
Regardless of the reasons,
water pollution brings significant harm. At hit of a contaminant in a living organism triggers a defensive reaction. Certain toxins are neutralized by the immune system, but in many cases it can not cope. Treatment is required and the adoption of drastic measures. Depending on the sources of pollution, scientists can determine such indicators of poisoning:
Слайд 5Genotoxicity
the effects of heavy metals and other hazardous trace elements can
change or damage the structure of DNA. In the development of the body there are serious problems developing a variety of diseases.
Слайд 6Impaired energy metabolism:
Pollutants, affecting the mitochondria, lead to the fact that
the energy in the body simply ceases to produce. The body ceases to operate, and even death.
Слайд 7Diseases caused by dirty water
Environmental problems, pollution of water lead to
the spread of the most serious diseases. With this liquid you can get a variety of pathogens, and pathogens, which kill hundreds of thousands of lives. The most common diseases, which brings dirty water: cholera, typhoid, giardiasis and mental disorders.
