柴静《穹顶之下》英文版PPT

Conclusion: 60% of PM2.5 in China comes from the burning of fossil fuels.
3
How should we do？

2
Where is it from？
After some analysis, scientists from China Academy of Sciences found that the black matters captured by the sampling device were from burning coal, fuel, fertilizers, industrial production, dust, and other human-related activities.
《Under.the.Dome》
Made By Chai Jing
A former CCTV presenter, Cai Jing, has released a self-funded documentary about smog, inspired by her sick daughter.
A professor who has studied air pollution for 30 years said, in the 1980s, polluted air had begun to cause lung cancer in China, but people were more concerned about economic development at that time. Over the past 30 years, the death rate of lung cancer surged 465%. Although smoking and ageing were two major problem, air pollution was also considered a factor.
1 2
3
What is smog? Where is it from? How should we do？
1
What is smog？
A lab test showed at least 15 cancer-causing matters were contained in the black paper, including Benzo[a]pyrene which was 14 times higher than the national standard (In Xiaoyi, the Benzo[a]pyrene was only nine times higher than the national standard).