Water_Pollution水污染英文PPT

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3. Don‘t discharge sewage into water. (不要乱排污水)
4. To estiblish the water recycling system
For individual
1 .Don’t use cleaner conclude Pollution. 2. Don’t throw the garbage into the river or sea. 3.Tell the person around you to protect the water
• Damage Harm to human 's health
• Destruction of Marine fishery resources and aquatic products
• Harm to human health
The garbage in water
Back
Solution
• reasons of form red tide
• Water eutrophication • Meteorological and
hydrological and physical and chemical properties of the sea
• Damages of red tide
All about Water pollution
1.Cause 2.influence
3.solution
Cause
Nowadays, water pollution is deteriorating. Rivers, lakes and even oceans all over the world are becoming polluted by garbage and dangerous chemicals. Oil and other Chemicals can kill fish and make water unsafe for drinking.
There are many influence that we can’t describe them by words. So I will
show you some pictures.
Discharging sewage into water
Water hyacinth
水葫芦
Red tide
Before we think about what should we do to solve this problem ,we should first know
what cause the prob源自文库em.
1.Natural pollution
Due to the dissolution of geological, atmospheric precipitation leaching, erosion on the ground, mix the various pollutants into the water
因地质的溶解作用,降水对大气的淋 洗、对地面的冲刷,挟带各种污染物 流入水体而形 成
2. Man-made pollution
1. industrial wastewater (工业废水) 2. Daily life sewage (生活污水) 3. Pesticide and fertilizer pollution
Everyone wants to reduce pollution. But the pollution problem is as complicated as it is serious.
What should we do to solve this problem Gradually?
For government
5.To control the agricultural non-point source pollution (控制农业面源污染)
For Business
1. To reduce water consumption(减少耗水 量)
2. To buy equipment of sewage treatment (买污水处理设备)
1To establish the urban sewage treatment system (城市污水处理系统的建立 )
2 To restructur the Industrial(调整产业结构)
3.To develop the new water sources
4.To strengthen the planning and management of water resources
If everyone can make a contribute to
preserving water resources, I believe that
our worldTwhillabenckomye omuore! and more
beautiful!
(农业化肥污染)
These do damage to the quality of
water.
BACK
Influence
Water pollution is one of the most serious problems that mankind faces today. 1.For business or industry, it affects products’ quality , increased corrosion of products, and so on. 2.For individual, it does damage to the human’s healthy.
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