Water pollution

Содержание

1. Water pollution
2. "Man is a complex being; he makes
3. "Society, my dear, is like salt water,
4. PCBs, Dioxins, and Other POPsPCBs polychlorinated biphenyl
5. Control of water pollution In urban areas,
6. Industrial Wastewater TreatmentSome of these facilities remove
7. Agricultural Wastewater TreatmentSediment (loose soil) washed off
8. Urban runoff (stormwater-ливневая вода) Effective control of
9. Think about Water!!!Thank YOU =) turn off faucet while cleaning teeth
10. Скачать презентанцию

"Man is a complex being; he makes the deserts bloom and lakes die." — Gil SternPesticides are carried in rainwater from farm fields, suburban lawns, or roadside embankments into creeks. Results:affect

Слайды и текст этой презентации

Слайд 1Water pollution

Greece, Spain and Germany have the cleanest coastal waters.

Asian

rivers are the most polluted in the world.

Lithuania and

Estonia have the dirtiest coastal waters.

The Sarno (Italy) is the most polluted river in Europe

Water pollutionGreece, Spain and Germany have the cleanest coastal waters.Asian rivers are the most polluted in the

Слайд 2"Man is a complex being; he makes the deserts bloom

and lakes die." — Gil Stern
Pesticides are carried in rainwater from

farm fields, suburban lawns, or roadside embankments into creeks.
Results:
affect and damage the nervous system;
cause liver damage;
damage DNA and cause a variety of cancers;
cause reproductive and endocrine damage;
cause other acutely toxic or chronic effects.

Слайд 3"Society, my dear, is like salt water, good to swim

in but hard to swallow." — Arthur Stringer, author, The Silver

Poppy

Mercury comes through air pollution from industrial plants. In the water, the elemental mercury is converted to methylmercury by certain bacteria, after which it moves into food through a fish.
Young children and fetuses (плод) are most at risk because their systems are still developing.
Mercury causes neurological problems, including slower reflexes, learning deficits, delayed or incomplete mental development, autism, and brain damage.
Mercury for adults is also a problem, causing:
central nervous system effects like Parkinson's disease, multiple sclerosis, and Alzheimer's disease (разновидность пресенильного слабоумия);
heart disease;
death or irreversibly damaging areas of the brain.

Слайд 4PCBs, Dioxins, and Other POPs
PCBs polychlorinated biphenyl - ПХД полихлорированные

дифенилы
dioxins - poisonous chemical by-products of the manufacture of

certain herbicides and bactericides
POP - persistent organic pollutants tend to collect in the fatty issues of animals.

PCBs, Dioxins, and Other POPsPCBs polychlorinated biphenyl - ПХД полихлорированные дифенилы dioxins - poisonous chemical by-products of

Слайд 5Control of water pollution
In urban areas, domestic sewage is typically

treated by centralized sewage treatment plants. Plants are designed to

control conventional pollutants(обычные загрязнит. в-ва) Well-designed systems can remove 90% or more of these pollutants.

Control of water pollution In urban areas, domestic sewage is typically treated by centralized sewage treatment plants.

Слайд 6Industrial Wastewater Treatment
Some of these facilities remove the toxic components,

and then send the partially-treated wastewater to the municipal system.

Dissolved air flotation system for treating industrial wastewater.

Industrial Wastewater TreatmentSome of these facilities remove the toxic components, and then send the partially-treated wastewater to

Слайд 7Agricultural Wastewater Treatment
Sediment (loose soil) washed off fields is the

largest source of agricultural pollution
Nutrients are typically applied to

farmland as commercial fertilizer, materials left after the crop has been harvested, water irrigation, wildlife

Agricultural Wastewater TreatmentSediment (loose soil) washed off fields is the largest source of agricultural pollution Nutrients are

Слайд 8Urban runoff (stormwater-ливневая вода)
Effective control of urban runoff involves reducing

flow of stormwater, as well as reducing pollutant discharges. Local

governments use techniques (BMPs-best management practices) to reduce the effects of urban runoff : filters, clarifiers, biological reactors

Urban runoff (stormwater-ливневая вода) Effective control of urban runoff involves reducing flow of stormwater, as well as

Слайд 9Think about Water!!!

Thank YOU =)
turn off faucet while cleaning

teeth

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Water pollution

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Слайды и текст этой презентации

Слайд 1Water pollution

Greece, Spain and Germany have the cleanest coastal waters.

Asian

rivers are the most polluted in the world.

Lithuania and

Слайд 2"Man is a complex being; he makes the deserts bloom

and lakes die." — Gil Stern
Pesticides are carried in rainwater from

Слайд 3"Society, my dear, is like salt water, good to swim

in but hard to swallow." — Arthur Stringer, author, The Silver

Слайд 4PCBs, Dioxins, and Other POPs
PCBs polychlorinated biphenyl - ПХД полихлорированные

дифенилы
dioxins - poisonous chemical by-products of the manufacture of

Слайд 5Control of water pollution
In urban areas, domestic sewage is typically

treated by centralized sewage treatment plants. Plants are designed to

Слайд 6Industrial Wastewater Treatment
Some of these facilities remove the toxic components,

and then send the partially-treated wastewater to the municipal system.

Слайд 7Agricultural Wastewater Treatment
Sediment (loose soil) washed off fields is the

largest source of agricultural pollution
Nutrients are typically applied to

Слайд 8Urban runoff (stormwater-ливневая вода)
Effective control of urban runoff involves reducing

flow of stormwater, as well as reducing pollutant discharges. Local

Слайд 9Think about Water!!!

Thank YOU =)
turn off faucet while cleaning

teeth

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Water pollution

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Слайд 1Water pollutionGreece, Spain and Germany have the cleanest coastal waters.Asian

rivers are the most polluted in the world. Lithuania and

Слайд 2"Man is a complex being; he makes the deserts bloom

and lakes die." — Gil SternPesticides are carried in rainwater from

Слайд 3"Society, my dear, is like salt water, good to swim

in but hard to swallow." — Arthur Stringer, author, The Silver

Слайд 4PCBs, Dioxins, and Other POPsPCBs polychlorinated biphenyl - ПХД полихлорированные

дифенилы dioxins - poisonous chemical by-products of the manufacture of

Слайд 5Control of water pollution In urban areas, domestic sewage is typically

treated by centralized sewage treatment plants. Plants are designed to

Слайд 6Industrial Wastewater TreatmentSome of these facilities remove the toxic components,

and then send the partially-treated wastewater to the municipal system.

Слайд 7Agricultural Wastewater TreatmentSediment (loose soil) washed off fields is the

largest source of agricultural pollution Nutrients are typically applied to

Слайд 8Urban runoff (stormwater-ливневая вода) Effective control of urban runoff involves reducing

flow of stormwater, as well as reducing pollutant discharges. Local

Слайд 9Think about Water!!!Thank YOU =) turn off faucet while cleaning

teeth

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Что такое TheSlide.ru?

Слайд 1Water pollution

Greece, Spain and Germany have the cleanest coastal waters.

Asian

rivers are the most polluted in the world.

Lithuania and

and lakes die." — Gil Stern
Pesticides are carried in rainwater from

Слайд 4PCBs, Dioxins, and Other POPs
PCBs polychlorinated biphenyl - ПХД полихлорированные

дифенилы
dioxins - poisonous chemical by-products of the manufacture of

Слайд 5Control of water pollution
In urban areas, domestic sewage is typically

Слайд 6Industrial Wastewater Treatment
Some of these facilities remove the toxic components,

Слайд 7Agricultural Wastewater Treatment
Sediment (loose soil) washed off fields is the

largest source of agricultural pollution
Nutrients are typically applied to

Слайд 8Urban runoff (stormwater-ливневая вода)
Effective control of urban runoff involves reducing

Слайд 9Think about Water!!!

Thank YOU =)
turn off faucet while cleaning