How much do you know about earth ？

Age : 4.6 billion years

Surface area : 5,96million sq.km

Atmosphere structure :

77% ： nitrogen ; 21% ： oxygen ; 2% ： CO2 ,O3 and others

Water distribution : sea water :97.2% iceberg:2.15%

ground water 0.63% lakes and rivers :0.017% vapor :0.001%

• Freshwater: about 2% of total water• only less than 1% of it could be easily used

Everglade ： kidney of the earth

maintain the balance of water

produce 2/3 of rice ，habitat of wild animals , etc.

Forest : the lung of the earth 31.7% 16.5%

POLLUTION

• Pollution the presence in or introduction into the envir

onment of a substance which has harmful or poisonous effects

what are polliting our home?

who knows why they die in this way ?

who knows what they need is just a place to set foot on...

• how did the people in this

village escape?

s

• s

• they cried so hopelessly.....

• who were the killer?• who were responsible

for those poor fish?• who could understand their bitterness?

can he catch any fish to bring home?

have you heard their cry.....

• we human can go outer space

• but where can• they go?....

• fish:"we live in water die in water...."

lights are beautiful,but can we stand so much light especially when we're trying hard to sleep?

how many types of pollution do you know ?

• water pollution• air pollution• light pollution

•

the other three types• land(soil) pollution

• noise pollution

• radiation pollution

Noise

water

Light

Pollution

air

Radiation

land(soil)

types of pollution

Noise pollution

• it is really anoying...

radiation...

land Pollution the action of environmental contamination with

man-made waste on land. .

Light pollution • Light pollution is the pop

ular name for sky glow - a br·ightening of the night sky caused by artificial light being scattered by small particles in the air.

• The major sources of artificial light include street lighting, security lamps and advertising and display lighting.

Thanks To Everybody !!!

what are the effects?

The effects of pollution on human being

Major pollutants

• Air pollution: affecting the body's respiratory system and the cardiovascular system.

• Water pollution: ⑴Spread of disease

⑵ Affect human,s organs: The consumption of highly contaminated water can cause{ injury to the heart and kidneys.} .

• Noise pollution: damage the{ hearing disturb Sleep induce various of disease affect mental health}

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The primary air pollutants

air air carbon monoxide (CO)

sulphur dioxide (SO2)

nitrogen oxides (NOx)

• Light pollution :interferes with astronomical observatories ,adverse health effects.

• Radiation pollution: Ionizing radiation (x-rays, radon gas, radioactive material) can cause leukemia and thyroid cancer.

• Land pollution: Un-managed disposal of hazardous waste can be extremely dangerous. People can be exposed to chemical and toxic waste.

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Ten Pollution EventsTen Pollution Events

1

Belgian Maas valley case

1930 年马斯河谷烟雾事件

2

Photochemical smog in Los Angeles in 1943 case

1943 年洛杉矶光化学烟雾事件

3

1948 Nowra many smoke case

1948 年多诺拉烟雾事件

4

London smog event In 1952

1952 年伦敦烟雾事件

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3

1955 至 1972 年骨痛病事件

3

1953 至 1956 年水俣病事件

7

Japanese rice bran oil case

1968 年日本米糠油事件

3

1984 年印度博帕尔事件

5

Minamata Bay mercury pollution event 

1939日本水俣事件

8

Japan Yokkaichi case

1972 年日本四日市事件

6

Japan bone disease

1955日本神东川骨痛病事件

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Diagram

1986 年切尔诺贝利核泄漏事件 chernobyl disaster

the other two pollution events

1986 年剧毒物污染莱茵河事件

If we keep on polluting our earth, in the end, we may be the only

creature in the world...

How to protect the environment?

Government

.

Legislative steps ; education ;population planning policy

Enterprise

pay special attention and work out solutions for the problems

但是近些年来，由于工业化污染的日益严重，我们的地球正在遭受着前所未有的破坏。

在人类的自私与贪欲面前，地球承受着严重的环境灾难。我们把一个满是创伤的地球交给下一代，我们应该感到惭愧与内疚。一代人的环境意识代表着这代人的环境质量。

保护环境，人人有责。让我们共同创造一片蔚蓝的天空、一方清澈的水、一片净土、一个语花香的未来。

请爱护我们共同的家园！

How to protect the environment?

• What can we do?

1 No littering2 Don’t use disposable things 3 Don’t kill or eat wild animals

4 Protect plants5 Save energy and recourses

How to protect the environment? future

THANKS

THE END

Byron lina Leo Jeff