中國(guó)空氣污染 英文

1、Air Pollution in ChinaAir Pollution in ChinaLearning GoalsWhat are some negative effects of outdoor air pollution?What are some negative effects of indoor air pollution?What are some major pollutants that engineers and scientists are concerned about?Where in the world is China?Where in the world is

2、China?How many people live in China?How many people live in China?China is a fascinating country with a very long historyChinas economy is growing very quicklyOne consequence of growth is increased pollution about 1.3 billion people!Which two countries in the world Which two countries in the world u

3、se the most energy? use the most energy? We can work together to use clean energy and take good care of the Earth China uses the most energy overallThe U.S. uses the most energy per personPollution in Rural ChinaPollution in Rural ChinaMany people live in the countryside, in rural areasSome of these

4、 people are very poorSome of them live on $1, $2, or less than $5 per day Abigail WatrousThis is a picture of a village in southwestern China Solid FuelsSolid FuelsMany people who live in the countryside in China use solid fuels to cook meals and heat their homesSolid fuels include coal, corn stalks

5、, wood, and other types of biomassBurning these fuels in a stove that is not very good, or doesnt have a chimney, releases a lot of pollution into the air, which is damaging to peoples health. Abigail WatrousThis is a small coal stove, called a “cookstove”Health Effects Health Effects of Indoor Air

6、Pollutionof Indoor Air PollutionNearly 3 billion people in the world use solid fuels for cookingOne of the most dangerous emissions from these fuels is PM2.5 (particulate matter 2.5)PM2.5 are very small particles that get deepinto your lungs when you breatheThese particles, along with other emission

7、s, can cause serious health conditionsScientists and engineers are investigating to find better ways for people without much money to cook their meals and heat their homesNegative health effects of indoor air pollution include:acute respiratory infectionschronic obstructive pulmonary disease (COPD)l

8、ung cancerPossible other health effects include:cataractslow birth weight Health Effects Health Effects of Indoor Air Pollutionof Indoor Air PollutionUrban PollutionUrban PollutionChina has many VERY big citiesBeijing, the capital city, has more than 22 million peopleThats more than twice the popula

9、tion of New York City (about 8 million) Abigail WatrousMany people are moving from the countryside into the cities, where much new construction is happening As people get more money, they are buying cars at one point, Beijing was getting 2,000 new cars every day!Outdoor Air Pollution Outdoor Air Pol

10、lution All of the people in the cities need to use energy, too!Scientists and engineers are very concerned about the rising levels of outdoor air pollutionTwo pollutants they are especially worried about are PM2.5 and CO2 (carbon dioxide)CO2 at low levels is good, but too much may really hurt the Ea

11、rth Source: /topics/earth/features/health-sapping.html Global PMGlobal PM2.52.5 Levels Levels 2001-06 average from NASA2001-06 average from NASAIncrease of carbon dioxide over Increase of carbon dioxide over time as population increasestime as population increasesTime period: 1960

12、- 2007 Source: http:/ are three things you notice in looking at this graph?Outdoor Air PollutionOutdoor Air PollutionSome negative effects of outdoor air pollution include:acid rainozone depletionglobal warmingclimate changeWhat can people in the city What can people in the city do to save energy?do

13、 to save energy?Turn off lights when they leave a room Use energy-saving light bulbsWalk, take the subway, or ride bicycles to workDont buy a personal car Abigail WatrousFactory owners can install special machines to help reduce air pollution emissions from their factories Some Chinese words to lear

14、n:Some Chinese words to learn:Ni hao 你好Ni hao ma? 你好嗎？Wo hen hao 我很好Zai jian 再見(jiàn)Da jia hao 大家好Lao shi hao 老師好HelloHow are you?Im very good GoodbyeHello everyoneHello teacher!Learning Goals AnswersLearning Goals AnswersNegative effects of outdoor air pollution:acid rainozone depletionglobal warmingclimate change Negative effects of indoor air pollution:chronic obstructive pulmonary diseaselung canceracute respiratory infectionpossibly: cataracts and low birth weight Major pollutants engineers and scientists are concerned about:CO2 (carbon dioxide)PM2.5 (particulate matter 2.5)Note on image so