Smog is harmful to our health-有关雾霾、环境污染危害身体的英语演讲

Smog is harmful to our health

Chris

#Introduction

Good morning, ladies and gentlemen! My topic today is “Smog is harmful to our health”. According to the American Lung Association, your lungs and heart can be permanently affected by air pollution and smog.

If we inhale too much smoggy air, it may lead to different types of short-term health problems, here, I will cover 3 points:

First of all, smog may lead to coughing and throat irritation.

Then, smog may lead to chronic diseases.

Lastly, smog may lead to lung damage.

#Body

I have talked about 3 types of health problems, then I am going to give you some proofs:

Firstly, smog may lead to coughing and throat irritation. A study of 10 adult men exposed to .12 ppm ozone for 6.6 hours , found that lung function decreased and coughing increased over the more than six hours of exposure.

Secondly, smog may lead to chronic diseases. David Abbey, doctor of Loma Linda University, studied a group of 6,340 people. Results of the study suggest long term exposure to air smog may increase the risk of chronic diseases by about 33%. In addition, it may higher the risk of developing some form of cancer.

Thirdly, smog may lead to lung damage. In a study done on rats, continuous exposure to smog caused restrictive lung disease. While removal of the smog can reverse the disease state back to normal.

#Conclusion

In conclusion, I have talked about 3 points.

First of all, I talked about coughing and throat irritation. The more vigorous your activity level, the greater your chances of experiencing respiratory problems.

Then, I spoke about chronic diseases. Please remember it’s necessary to limit your outdoor activities as ozone levels rise to unhealthy levels.

Lastly, I told you about lung damage. Please remember to wear a mask while the air is smoggy.