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Презентация на тему Toxic Waste

Toxic waste is generally described as many discarded material that is dangerous to any life form, including humans, animals and plant life. Toxic waste can pollute the air, land and water.Toxic waste is defined as liquid,
Toxic WASTE Toxic waste is generally described as many discarded material that is dangerous Wastes are regulated by the Environmental Protection Agency(EPA) under the Resource Conservation Although the EPA has a detailed listing of what is considered a WARNING Toxic waste has a negative effects on environmental and public health.For humans: For environment: animals may ingest lead while searching for food, resulting in People encounter these toxins buried in the ground, in stream runoff, in Toxic wastes containing organic carcinogens can be destroyed by incineration at high Toxic waste in the uk Tonnes of toxic waste collected from British municipal dumps is being sent Hundreds of thousands of discarded items, which under British law must be
Слайды презентации

Слайд 2 Toxic waste is generally described as many discarded

Toxic waste is generally described as many discarded material that is

material that is dangerous to any life form, including

humans, animals and plant life.
Toxic waste can pollute the air, land and water.
Toxic waste is defined as liquid, solid, contained gas or sludge waste that contains properties that are dangerous or potentially harmful to human health or the environment.

Toxic waste


Слайд 3 Wastes are regulated by the Environmental Protection Agency(EPA)

Wastes are regulated by the Environmental Protection Agency(EPA) under the Resource

under the Resource Conservation and Recovery Act, according to

the EPA handbook on toxic waste.
Despite containing toxic and dangerous elements, most waste does not end up being monitored and controlled under the RCRA.

REGULATION


Слайд 4 Although the EPA has a detailed listing of

Although the EPA has a detailed listing of what is considered

what is considered a waste, hazardous waste generally has

one or more of these four characteristics:
flammability
corrosiveness
reactivity
toxicity.

TYPES OF WASTe


Слайд 5 WARNING

WARNING

Слайд 7 Toxic waste has a negative effects on environmental

Toxic waste has a negative effects on environmental and public health.For

and public health.
For humans: contact with toxic chemical waste

from laboratories may result in skin burns and disfigurement.

Exposure to carbon monoxide may cause headache and trouble thinking.
Toxic wastes such as lead, mercury or cadmium may cause liver or kidney damage, central nervous system damage, cancer and birth defects.

effects


Слайд 8 For environment: animals may ingest lead while searching

For environment: animals may ingest lead while searching for food, resulting

for food, resulting in damage to their central nervous

system.
Fish accumulate toxins in their bodies from contaminated water. As a result these contaminants enter the food chain.
Lead absorption in plants may lead to stunted growth, chlorosis and blackening of root system. This inhibits photosynthesis, affects membrane structure and permeability in plants.

Слайд 9 People encounter these toxins buried in the ground,

People encounter these toxins buried in the ground, in stream runoff,

in stream runoff, in groundwater that supplies drinking water,

or in floodwaters.
Some toxins, such as mercury, persist in the environment and accumulate.

solution


Слайд 10 Toxic wastes containing organic carcinogens can be destroyed

Toxic wastes containing organic carcinogens can be destroyed by incineration at

by incineration at high temperatures, which is expensive.
However,

if the waste contains heavy metals or radioactive isotopes, these must be separated and stored, as they cannot be destroyed.

Слайд 11 Toxic waste in the uk

Toxic waste in the uk

Слайд 12 Tonnes of toxic waste collected from British municipal

Tonnes of toxic waste collected from British municipal dumps is being

dumps is being sent illegally to Africa in flagrant

breach of this country’s obligation to ensure its rapidly growing mountain of defunct televisions, computers and gadgets are disposed of safely.

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