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Caring for Our Earth


CARING FOR OUR EARTH

? Water

pollution ? Air pollution ? Past and today ? The pollution’s effect on us ? What should we do

Water protection

We all know that water is very important in our life.

All kinds of beautiful water

Water scarcity and pollution has become one of the most important things in recent years. In this chapter we’ll discuss both fresh water and wastewater treatment, either for reuse or disposal in the environment "without polluting it. "

Drought Pollution

NOW
Approximately 300 million nationwide have no access to clean water. Furthermore, over 700 million Chinese drink fetid water below World Health Organization standards. Almost 90% of underground water in cities are affected by pollution and 80% of China’s rivers fail to meet standards for fishing. Almost all of the nation's rivers are considered polluted to some degree, and half of the population lacks access to clean drinking water .Ninety percent of urban water bodies are severely polluted.

Water pollution

manage water pollution

Take action now!

What caused the air pollution?
1. nature ? Sandstorms and the dust and gases from volcanoes pollute the earth's atmosphere naturally.
?

What caused the air pollution?
2. people ? The most serious kind of air pollution comes from people. Factories, power stations, and vehicles exhausts pump harmful gases into the air, contributing to global warming, causing acid rain, and destroying the ozone layer.
?

The pollution in cities

Smoking cigarettes

Some important point about air pollution
1.Air pollution index.(API)
Air pollution index is a group of numbers which show how serious the air pollution is.

2. Particulate matter(PM2.5)
A kind of statistics about the diameter of matters we can breathe in.

The most important element of the air pollution
1.carbon dioxide(CO2) ? 2.carbon monoxide(CO) ? 3.suldur dioxide(SO2) ? 4. ……
?

Kyoto Protocol!

Kyoto - success or failure?
? Kyoto

should be viewed as a stepping stone to more drastic action. And that action is required now.

LET’S CARE FOR OUR HOME

THESE VIEWS MAY BE JUST MEMORIES
Long long ago,our mother earth is an amazing planet with deep blue water and sky.There are kinds of wild animals which had a happy life at the sake of god.

Is it a curse for us?

WHAT DO YOU THINK OF IT?

?WATER

POLLUTION

?DROUGHTS

AREN’T WE GRIEVED?

great financial losses

WHAT DO YOU THINK OF IT ?

?Automobile exhaust ?Idustrial waste gas

? Incinerted gas
?The lose caused by pollution occupy 3.05% of all GDP.

AREN’T WE DANGEROUS?

Reasons of death Malignant tumor(恶性肿瘤) cerebrovascular disease(脑血管病) Heart disease (心脏病) respiratory illness(呼吸系统疾病) Injury and poisoning(损伤及中毒) Endocrine nutrition and metabolic disease(内 分泌营养和代谢疾病) digestive system disease(消化系统疾病) Urogenital Disease(泌尿生殖系统疾病)

比例 27.63% 21.33% 20.43% 10.10% 5.11% 3.55% 2.67% 1.88%

nervous system disease(神经系统疾病) mental disorders(精神障碍)

1.14% 1.12%

?How

to solve them?

?

Air pollution

TO DEAL WITH WATER POLLUTION:
Polluted water must be treated before it was discharged.

Save water as much as we can

.

Tips to save water
Instead of buying water bottles, buy a reusable water bottle and fill it with tap water. Cut your shower time by 1 minute. It can save you up to 150 gallons of water a month.

THANK YOU


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