微型调研——环境污染.ppt

图示_03 图示_04 图示_05 Page ? * Air pollution Ocean polution In the northern China, because there are wide spread use of coal burners to get warm in winter, the air pollution is heavier and heavier. Especially the lasting hazy weather. Air pollution is a menace to Chinese people’s health. What’s worse, it has given rise to many people’s premature death, which had been proved. It is also proved that the environment pollution especially the air pollution problem if not resolved as soon as possible will declare a reducing of people’s average lifetime. lets watch a short video first Everyone in beijing has been familiar about this: WHO published a research about cities where there are most serious air pollution. Here is a part of its excel, which is the ranking about PM2.5: With the development of petroleum industry, sea area expands unceasingly, contaminated with oil pollution is increasingly serious. The most serious accidental oil spill caused by human activities. lets come to the ocean pollution Contamination of the oil film blubber fur and bird feathers. And dissolve the grease material which make them lose the ability of heat preservation, swimming or flight. Oil pollutants will interfere the biological feeding, reproduction, growth, behavior. Serious Marine pollution by oil may also cause some species died out. Oil Marine pollution not only has influence to the food chain, but also on us. Oil into the sea can go through the food chain to the human body eventually enrichment, which cause serious harm to human body. Study shows that the toxic and harmful substances in gasoline, diesel, kerosene to the persons nervous system, urinary system, respiratory system, circulatory system, blood system and so on all have. human sea animals and plants harmful substance Huamn is always the sufferer at last, so lets do something to make the sky blue as well as the oaean clear. Thank you! 单击此处添加文字 单击此处添加标题文字 单击此处添加文字