空气污染 水污染 大气污染的介绍英文ppt课件

世界卫生组织
respiratory disease呼吸疾病
underground water 地下水 stationary sources固定污染源
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Focal 焦点的
Quota 定额
global warming全球变暖 Coorwk.baidu.cominate使协调
gaseous system气态系统 Emission 发射
Our Country’s Environmental
Problems
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Ecological environment 生态环境drinking water饮用水
Desertification 荒漠化
Water body 水体
Salinization 盐碱化
Contaminate 污染
Offscum 废渣
水污染是水体中添加大量其他物质而造成 的负面影响
Drought Pollution
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 is 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.
水的用途多种多样，而且要求其达到一定的标准。 但是，由于人类使用而产生的污水造成了对环境的 影响。
Water pollution occurs when a body of water is adversely affected due to the addition of large amounts of materials to the water.
pollutants react or interact.
when primary
An important example of a secondary pollutants
ShuiYuBing events 水俣病事件 （19531956）Japan
bone pain disease events 骨痛病事件（） 1955-1963）Japan
poisonous substances contaminate the Rhine events剧毒物质污染莱茵河事件 1986 Switzerland, Germany, France
vehicle
the carbon monoxide gas from a motor
exhaust ;
sulfur dioxide released from factories.
Secondary pollutants: not emitted directly, they are produced
ozone depletion 臭氧枯竭 Afforestation 造林
Ecosystem生态系统
Adsorption 吸附
Pollutants污染物
Photosynthesis 光合作用
photochemical smog光化雾 Phosphorus 磷
Countermeasure措施
Filtration 过滤
Propaganda 宣传
Biodegradable 能被细菌分解的
Ascendant 优势
Trash 垃圾
Detergent 洗涤剂
Consumption 消耗
Evaporative蒸发的
Rectification 改正
Waste Pollution
WATER POLLUTION
The four basic natural resources are water, air, land and energy. We need water for multiple uses and a certain quality is required. Its use leads to the generation of wastewater that can cause an impact on the environment. 水 ，空气，土地和能源是四个基本的自然资源。
Air Pollution
Pollutants
Pollutants can be classified as either primary or secondary.
Primary pollutants: emitted from a process.
such as: ash from a volcanic eruption;
Rhine 莱茵河
Mining 采矿业
Greenhouse effect温室效应
Biological chain 生物链
Ground level ozone地面臭氧
Biodiversity 生物多样性 Wastewater 污水 World Health Organization
particulate matter微粒物质 biological materials生物材料
全国约有3亿人使用不上干净的水，此外，有超过7亿中国 人饮用的水没能达到世界卫生组织的标准，几乎 90%的城 市地下水受到污染，80%的中国河流不符合捕鱼标准，某种 程度上说，几乎所有的河流都受到某种程度的污染，一半 的人口缺少干净的饮用水，90%的城市水体受到严重污染。
The famous water pollution incidents